Overview of the Geochemistry of Archean and Proterozoic ... · The Nueltin granites have a tendency...

Saskatchewan Geological Survey 1 Summary of Investigations 2004, Volume 2

Overview of the Geochemistry of Archean and Proterozoic Rocks of the Phelps Lake Region, Mudjatik Domain, Hearne Province

C.T. Harper

Harper, C.T. (2004): Overview of the geochemistry of Archean and Proterozoic rocks of the Phelps Lake region, Mudjatik Domain, Hearne Province; in Summary of Investigations 2004, Volume 2, Saskatchewan Geological Survey, Sask. Industry Resources, Misc. Rep. 2004-4.2, CD-ROM, Paper A-7, 24p.

Abstract Geochemical analyses of the major rock units from the Phelps Lake Project are reported and preliminary interpretations of the data presented. Archean tonalitic orthogneiss components of migmatites and gneissic tonalite intrusions are calcic, peraluminous rocks, with volcanic arc granite (VAG) affinity, high Sr/Y and La/Yb ratios, and a neutral to positive Eu anomaly. These are similar to the characteristics of Archean tonalite-trondhjemite-granodiorite suites that are thought to have formed through partial melting of a shallow subducting, garnet-bearing eclogitic, or basaltic crust. Archean granitic intrusions are calc-alkalic, peraluminous rocks with transitional VAG to syn-collisional granite (syn-COLG) affinities. The Archean Ennadai Group comprises mainly mafic with minor intermediate to felsic metavolcanic rocks and minor interlayered psammopelitic to pelitic schist and various iron formation facies. The mafic metavolcanic rocks are subalkaline, high-Fe to high-Mg tholeiites with transitional MORB to VAB character, which is typical of volcanic arc–back arc basin settings. The felsic metavolcanic rocks are calc-alkaline and typical of a volcanic arc setting. The chemical signature of 10 samples of various iron formation facies, particularly with a strong positive Eu anomaly, are similar to iron formations associated with volcanic-hosted massive sulphide deposits and suggests there may be potential for the Ennadai Group to host such deposits. Weakly to strongly iron sulphide-bearing (± chalcopyrite) metavolcanic rocks and mafic metavolcanic-hosted pyritic quartz veins, contain background to anomalous concentrations of base and precious metals.

Proterozoic-aged rocks include the Hurwitz Group metasedimentary rocks and various syn- to post–Trans-Hudson intrusions. Pelitic and ferruginous pelitic schists and associated iron formations of the Hurwitz Group have similar rare earth element profiles as the North American Shale Composite. The general negative Eu anomaly of the ferruginous pelites and iron formations is characteristic of shale/mudstone-hosted iron formations. Proterozoic intrusions are subdivided into two age groups: the 1.85 to 1.8 Ga Hudson and the 1.76 to 1.75 Ga Nueltin granite suites. Chemically, both suites are silicic, potassic, calc-alkaline, and peraluminous granites. They mostly have syn-COLG affinity. The Nueltin granites have a tendency to be porphyritic, fluorite-bearing, and possibly REE-enriched. Perhaps the most interesting sample collected is a massive, lepidolite pegmatite boulder that has very high concentrations of Li, Rb, Cs, Nb, Ta, Sn, Be, Tl, Ga, and Ge, which is characteristic of complex, rare element pegmatites of the Bernic Lake type. Such pegmatites form from volatile-rich magmas commonly associated with post-tectonic granitic intrusions. The fluoritic Nueltin granite suite is a likely candidate from which the rare element pegmatite could have originated, and thus the boulder’s source may lie nearby to the north or northeast.

Keywords: Phelps Lake, Archean, Proterozoic, geochemistry, intrusive rocks, Ennadai Group metavolcanics, iron formations, Hurwitz Group metasediments, mineral occurrences.

1. Introduction As part of the 1:100 000 scale geological mapping component of the Phelps Lake Project (Figure 1) completed from 2001 to 2003 (Harper et al., 2001, 2002a, 2003; Coulson et al., 2001), 112 rock samples were collected for geochemical analyses. Samples of Archean rocks include: tonalitic orthogneiss from migmatites, foliated to gneissic tonalitic and granitic intrusions, and mafic and felsic metavolcanic rocks and iron formations of the Ennadai Group. Proterozoic rocks sampled include: Hurwitz Group metasediments and rare metavolcanic rocks, Wollaston Supergroup pelitic gneiss, and the Hudson and Nueltin granite suites. Thirty-five samples representing a variety of metavolcanic-, metasediment-, and granitoid-hosted mineral occurrence types were collected from outcrop, felsenmeer, and transported boulders to test their metal endowment. All samples were analysed at Activation Laboratories Ltd., Ancaster, Ontario for major oxides and a group of trace and rare earth elements (see Appendix 1 for analytical details). The geochemical data for samples collected during the 2001 field season, along with the till geochemistry (Campbell, 2001) and mineral deposit studies geochemistry (MacDougall, 2001), was previously released without interpretation, as Saskatchewan Industry and Resources Data File 21 (Harper et al., 2002b). Other geochemical studies related to the project include those of: Coulson (2002) for Ennadai Group metavolcanic rocks


Figure 1 - Location of the Phelps Lake Project area with respect to A) major lithostructural domains, and B) the regional geological setting.

LEGEND

Metasedimentary rocks (largely >2.5 Ga)

Mafic to ultramafic gneisses and intrusions (2.6 Ga)

Diabase dikes and sills (1.28 to 1.10 Ga)

Metasedimentary rocks (2.45 to 1.83 Ga)

Metavolcanic rocks (largely >2.5 Ga)

Felsic granitoids (3.2 to 2.5 Ga)

Metavolcanic rocks (1.92 to 1.87 Ga)

Wathaman Batholith: granitic rocks (1.86 Ga)

Mylonite

Felsic granitoids and migmatites (1.92 to 1.77 Ga)

Athabasca Group: sandstones (1.75 to 1.60 Ga)

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from part of the main Ennadai Greenstone Belt; Rainville (2002) and Rainville et al. (2002) for amphibolite rocks equated with mafic metavolcanic rocks of the Ennadai Group from an outlying belt at Bonokoski Lake; MacDougall (2002) who summarized the geochemical results from his two field seasons of sampling various mineral occurrences throughout the Phelps Lake region; and Senkow (2003) for some unusual Hurwitz Group dolomitic marbles at Many Islands Lake.

The main purpose of this paper is to present the geochemical data and provide a brief overview of some of the important interpretations that have been derived from the data. For the major rock types, samples were collected which showed the least potential for alteration and thus reduce the affects of element mobility. Harker-type plots were used to determine element mobility in the different suites of rocks, but will not be discussed further.

2. General Geology The Phelps Lake map area (NTS 64M) lies in the western part of the Hearne province, mainly in the northern Mudjatik Domain, but also includes part of the Wollaston Domain in the southeast corner. In the extreme northwest corner, mylonitic granites and amphibolites probably mark the southeast limit of the Striding-Athabasca mylonite zone (Hanmer and Kopf, 1993; Hanmer, 1997), which occurs on the Hearne side of the Snowbird Tectonic Zone (STZ). The STZ marks the boundary between the Rae and Hearne cratons.

The Phelps Lake area is largely underlain by Archean granitoid rocks which locally form an older basement migmatite complex (ca. 3.3 to 2.82 Ga; e.g., Aspler and Chiarenzelli, 1996; Orrell et al., 1999; Harper et al., 2004) to younger Archean supracrustal rocks, generally referred to as the Ennadai Greenstone Belt. This belt is part of a regionally discontinuous supracrustal belt that extends over 700 km from northeast Saskatchewan to Rankin Inlet on Hudson Bay. The metavolcanic and metasedimentary rocks (ca. 2.73 to 2.68 Ga) of the Saskatchewan portion of the Ennadai Greenstone Belt (Figure 1) were informally referred to as the Ennadai Group by Macdonald (1984) and that term was adopted by Reilly (1989, 1993) and by Harper et al. (2001, 2002a, 2003). These rocks were intruded by ca. 2.72 to 2.6 Ga mafic to felsic plutons (Peterson and Lee, 1995; Peterson et al., 2000; Harper et al., 2004), that were contemporaneous with volcanic activity and predated late Archean deformation and metamorphism at ca. 2.55 to 2.5 Ga (Davis et al., 2000). These plutons are dominantly well-foliated to gneissic tonalite and granite-leucogranite.

Paleoproterozoic Hurwitz Group metasedimentary rocks (ca. 2.4 to 1.9 Ga) are more widely distributed than previously indicated, whereas the partially time-equivalent Wollaston Supergroup metasedimentary rocks (ca. 2.1 to 1.9 Ga) are only in the southeast. Paleoproterozoic gabbros, leucogranites, granites, and leucotonalites (ca. 1.85 to 1.75 Ga) intruded these rocks. The youngest rocks are west- and northwest-trending diabase dykes; the former possibly belonging to the ca. 2.19 Ga Tulemalu or 1.9 Ga Chipman dyke swarms (Tella et al., 1997; Williams et al., 1999), and the latter, mainly defined by aeromagnetic trends, are probably related to the ca. 1.27 Ga McKenzie swarm (LeCheminant and Heaman, 1989).

The area has been affected by multiple thermotectonic events, during the Archean and subsequently the Paleoproterozoic Trans-Hudson orogeny. The rocks generally exhibit amphibolite facies mineral assemblages, with a gradual increase from lower amphibolite grade in Ennadai Group and Hurwitz Group rocks near the Northwest Territories border, to upper amphibolite grade southwestwards; locally some rocks attained granulite facies conditions. As all rocks, except the youngest intrusive rocks, have undergone some metamorphism, the prefix ‘meta’ will be dropped, for simplicity, in the remainder of the paper.

3. Geochemistry of the Archean Migmatites and Intrusive Rocks The migmatite complex comprises multiple, predominantly tonalitic intrusive (orthogneiss) components, which are geochemically similar to the younger tonalite gneisses (Appendix 2). Although the alkali elements are generally the most mobile elements, their relatively tight clustering on bivariant plots (not shown) and on Figure 2 suggests that their mobility was minimal, and as such they can provide appropriate chemical characterization. On an alkalis versus silica plot (Frost et al., 2001) analyses of the migmatite and tonalite samples are characterized as calcic intrusions, those of granitic intrusions are transitional from alkali-calcic to calc-alkalic (Figure 2A). On the ASI (alumina saturation index) versus Na+K/Al plot (ibid), all analyses, with the exception of one gabbro, have peraluminous characteristics, with a clear distinction between tonalitic and granitic rocks (Figure 2B). On a tectonic discrimination diagram (Pearce et al., 1984) migmatitic and gneissic tonalites have relatively low Y + Nb over Rb ratios (Figure 2C), similar to modern volcanic arc granites (VAG); granitic rocks show a transitional character between the VAG and syn-collision granites (syn-COLG). This distinction in tectonic environments is also suggested in the εNd values (see Harper and van Breemen, this volume) with tonalitic rocks having positive εNd values (i.e., juvenile mantle derivation), and granitic rocks having slightly negative εNd (i.e., older crustal


involvement, substantiated by presence of inherited Mesoarchean zircon cores). Thus a collisional setting may have developed between emplacement of the ca. 2.7 Ga tonalites and formation of the ca. 2.68 Ga granites.

On extended chondrite-normalized trace element plots (after Taylor and McLennan, 1985), with the exception of migmatite sample 0111-128, the migmatites and tonalite gneisses have similar profiles (Figure 3A), and share strong negative Nb and moderate negative Ti anomalies. Both rock types have elevated light rare earth element (LREE)

contents relative to their heavy rare earth element (HREE) contents and their analyses also show both negative and positive Zr anomalies. In addition, the tonalitic migmatites and tonalite gneisses have low Y (average ~5 ppm), high Sr/Y (~38 to 230) and La/Yb (~10 to 80) ratios, and have neutral to slightly positive Eu ratios. Such geochemical features are typical of Archean tonalites (Sandeman et al., 2000; Selbekk and Skjerlie, 2000) that are thought to have formed through partial melting of a shallow subducting, garnet-bearing basaltic crust (Drummond et al., 1996; Smithies and Champion, 2000; Martin and Moyen, 2002; Smithies et al., 2003).

Extended chondrite-normalized trace element signatures (after Taylor and McLennan, 1985) of the Archean granites (Figure 3B) are somewhat similar to those of the tonalitic rocks, but generally have slightly higher normalized concentrations. Small positive and negative anomalies are indicated for Zr, Sm, and Eu; negative Ti anomalies are more pronounced; and the HREE profile is flat. The similarity to VAG setting is shown in the REE normalized profiles for the migmatites and tonalites (Figure 4A) and granites (Figure 4B). Both groups straddle the VAG=1 profile, with the migmatites and tonalites having a negative slope for the HREE and the granites displaying both positive and negative Eu anomalies. The strong association of the granites to VAG is perhaps contradictory to the notion of crustal contamination in the formation of the granites, but it may also indicate the relative importance of subduction-related processes in their formation. Lending support to the subduction process is the U-Pb SHRIMP age of 2681 Ma (Harper and van Breemen, this volume) obtained on one such granite that is identical to the 2681 to 2682 Ma ages of Ennadai Group felsic volcanic rocks (Chiarenzelli and Macdonald, 1986; Harper et al., 2004).

4. Ennadai Group Volcanic and Sedimentary Rocks

Volcanic rocks of the Ennadai Group are dominated by massive and pillowed mafic (basaltic) flows, lesser mafic tuffaceous rocks, and minor intermediate to felsic volcanic rocks (Appendix 3). Interlayered sedimentary rocks include psammopelitic-pelitic schist and gneiss, and various facies of iron formation. The geochemical character of Ennadai Group mafic volcanic rocks from Bonokoski Lake (Rainville, 2002) and from the main Ennadai Greenstone Belt (Coulson, 2002) was described as predominantly subalkaline, and both high-Fe and high-Mg tholeiitic in character. The few intermediate to felsic volcanic rocks analysed showed calc-alkaline character.

Figure 2 - Geochemical diagrams for the Archean migmatites and intrusive rocks. A) Alkalis vs. SiO2 diagram (Frost et al., 2001) to show alkalic to calcic character; B) ASI (Al/(Ca-1.67P+Na+K)) versus Na+K/Al diagram (Frost et al., 2001); and C) Rb versus Y+Nb (Pearce et al., 1984) granitic tectonic discrimination diagram; ORG, ocean ridge granite; syn-COLG, syn-collision granite; VAG, volcanic arc granite; and WPG, within-plate granite.


Figure 3 - Extended chondrite-normalized trace element plots for: A) the Archean migmatites and tonalite gneisses and B) the Archean granitic intrusive rocks. Chondritic normalizing values after Taylor and McLennan (1985).

Analytical results from additional samples collected across the Phelps Lake region (this study) confirm the subalkaline tholeiitic nature, although one sample (0411-0003) from the western edge of the EGB shows komatiitic basalt affinity (Figure 5A). Rainville (2002) noted the transitional nature of the volcanic rocks from MORB to VAB, typical of volcanic arc–back arc basin settings. The additional data presented here, supports the transitional MORB–VAB chemical character of the volcanic rocks. This is illustrated in Meschede’s (1986) Nb-Zr-Y ternary plot (Figure 5B) and Wood’s (1980) Hf-Th-Ta ternary diagram (Figure 5C), but shows exclusive back-arc basin basalt affinity on Cabanis and Lecolle’s (1989) Y-La-Nb ternary diagram (Figure 5D). Pearce’s (1996) N-MORB-normalized abbreviated ‘spider’ diagrams, which are used to discriminate different tectonic environments, also show that the Ennadai mafic volcanic rocks have a transitional setting between MORB and VAB (Figure 6A and B). Felsic volcanic rocks show profiles typical of more evolved volcanic arc rocks (Figure 6C; Pearce, 1996), with negative Nb and Ti anomalies.


Figure 4 - Volcanic arc granite rare earth element normalized plot for: A) the Archean migmatites and tonalitic gneisses and B) the Archean granitic intrusive rocks.

Oxide, sulphide, and silicate facies iron formations are typically interlayered on a metre to ten metre scale with the mafic volcanic rocks, and with the new Federal-Provincial aeromagnetic maps can be traced for 10 to 20 km along strike. They were sampled at various locations in the main Ennadai Greenstone Belt, at Bonokoski Lake, and elsewhere in the Phelps Lake region. The iron content of these samples ranges from 7.77 to 50.34%, the former from a sample consisting mostly of the ‘cherty’ part of a banded oxide-facies iron formation, and the latter from a metre-thick magnetite layer at Bonokoski Lake. Samples 0111-CAMP and 0311-2056 are massive pyrrhotite-bearing boulders. None of the iron formations contained any notable gold concentrations and only sample 0311-


Figure 5 - Chemical diagrams for the Ennadai Group volcanic rocks. A) Jensen (1976) cation plot. B), C), and D) Basalt discrimination diagrams; CAB, calc-alkaline basalt; IAT, island arc tholeiite; E-MORB, evolved; EVM, Ennadai mafic volcanic rocks; EVM Bono, from Bonokoski Lake; EVFr, Ennadai felsic volcanic (rhyolitic) rocks.

2056 had a higher copper content of 500 ppm. With the exception of the massive iron sulphide boulder (0311-2056) and a notably garnet-rich silicate facies boulder from Phelps Lake, all the samples have nearly identical chondrite-normalized extended element profiles (Figure 7). They have a slightly elevated LREE signature, a prominent positive Eu anomaly, and very flat HREE signature. Positive Eu anomalies in iron formations typically result from hot hydrothermal fluids, with low detrital input, and can be associated with volcanic-hosted massive sulphide (VHMS) deposits (Peter, 2003). Sample 0311-2056 collected east of Misaw Lake, has no Eu anomaly, which according to Peter (2003) might suggest there is a greater clastic component or perhaps the rocks were more distal from the fluid source. The extended trace element plot also reveals a strong negative Nb anomaly, moderate to strong negative Zr and very strong negative Ti anomaly, which would all be consistent with chemical sedimentation having little detrital material being contributed to the sediment.

5. Hurwitz Group (Wollaston Group) Samples of Hurwitz Group rocks included pelite, ferruginous pelite, and various related facies of iron formation, calc-silicates and marbles, and rhyolite (Appendix 4). A single pelitic gneiss sample from the Wollaston Domain was collected for comparison to the Hurwitz Group pelites (Appendix 4).

Two analyses of lower amphibolite facies Hurwitz Group pelites and one analysis of an upper amphibolite facies Wollaston Supergroup pelite are shown on a chondrite-normalized extended trace element plot (Figure 8A). They have nearly identical profiles, with a steep LREE profile relative to the HREE and a negative Eu anomaly, which is characteristic of the North American Shale Composite (see Peter, 2003). The pelitic rocks also have consistent negative Nb, Zr, and Ti anomalies.


The ferruginous pelites of the Hurwitz Group typically contain several percent magnetite or pyrite and locally develop into banded iron formations of oxide or sulphide facies. They are most common in the lower pelitic sequence (Harper et al., 2001, 2002a). Their iron content ranges from 7.1 to 35.7% and they generally have background concentrations of base and precious metals (Appendix 4). These rocks have nearly identical chondrite-normalized extended element profiles to the ‘normal’ pelites (Figures 8A and 8B). In comparison to the Ennadai Group iron formations, the Hurwitz Group ferruginous pelites and iron formations have parallel profiles, but are a factor of 10 times higher than the Ennadai Group (compare with Figure 7). They also have a slightly negative Eu anomaly, which is characteristic of shale/mudstone-hosted iron formations and similar to Red Sea metalliferous sediments (Peter, 2003). The Hurwitz Group ferruginous pelites and iron formations also have strong negative Nb and Ti anomalies and a neutral to weak negative Zr anomaly. Sample 0311-1146, from a boulder of specular hematite-bearing Hurwitz Group iron formation, has a parallel profile to the majority of the samples, but is more than a factor of 10 lower than the other ferruginous Hurwitz Group rocks, suggesting perhaps an association with volcanic rocks.

Two dolomitic marble and two hematitic quartz-veined marble samples (Appendix 4) were part of a B.Sc. project by Senkow (2003) to determine the correct mineralogy of a suspected rhodochrosite occurrence at the southwest end of Many Islands Lake. Petrography, cathodoluminescence, and X-ray diffraction analyses were completed on several samples, in

addition to wholerock geochemistry to determine if the rocks were enriched in Mn and/or other metals (e.g., Cu, Pb, Zn, and Ag). Manganese enrichment was not noted and only one sample (0211-1003) had slightly anomalous Cu and Zn concentrations relative to the other samples. Rhodochrosite was not identified, but the pink to red carbonate mineral was identified as dolomite and/or ferroan dolomite (Senkow, 2003; D. Quirt, pers. comm., 2004) and was accompanied by two types of hematite. The marble samples and two calc-silicate samples have similar chondrite-

Figure 6 - Abbreviated N-MORB-normalized “spider” diagrams (after Pearce, 1996) for Ennadai Group volcanic rocks; A) regional samples, B) samples from Bonokoski Lake, and C) felsic volcanic rocks.


Figure 7 - Chondrite-normalized extended element profiles for various Ennadai Group iron formation facies. Chondrite normalizing values from Taylor and McLennan (1985).

normalized extended trace element profiles (Figures 8C and 8D) as the pelitic rocks, but have a stronger negative Ti anomaly, a neutral Y to slightly positive Y anomaly, and both negative and positive Zr anomalies.

6. Paleoproterozoic Intrusions Two periods of Paleoproterozoic granitoid plutonism have been documented in the Northwest Territories and Nunavut (Peterson and van Breemen, 1999; Peterson et al., 2000, 2002) and are referred to as the Hudson granitoids (ca. 1850 to 1810 Ma) and the Nueltin granite suite (ca. 1760 to 1750 Ma); the latter has an associated felsic volcanic suite, the Pitz Formation. In the Phelps Lake area weakly foliated granite, and massive leucotonalite and leucogranite intruded Hurwitz Group rocks, confirming their Proterozoic age. Massive, porphyritic, fluorite-bearing granites were considered to be Nueltin-type granites (Appendix 5). The fluorine content of three fluorite-bearing samples (0211-1162, -1163, and -1177) from the Spratt Lake area ranged from 0.11 to 0.31%, whereas, an analysis of a non-fluorite-bearing sample yielded 0.03% F (Appendix 5). Aphanitic felsite, found in two locations in the northeast quarter of 64M (Harper et al., 2002a), were thought to be possible equivalents of the Pitz Formation. A single sample of the felsite is included in Appendix 5 and plotted with the Nueltin granites. Several of these Proterozoic intrusions have now been dated by U-Pb zircon (Heaman et al., 2003; Harper et al., 2004) and U-Pb SHRIMP zircon (Harper and van Breemen, this volume) techniques, establishing affinities to both periods of plutonism. A weakly deformed, east-trending gabbro dyke that intruded strongly foliated granite in the southeast margin of the Striding-Athabasca mylonite zone is believed to be a Proterozoic-aged dyke, and is included in Appendix 5. Also of interest is a sample (0211-1501) collected from a boulder north of Keseechewun Lake of a, presumably post-tectonic, massive lepidolite-bearing pegmatite (Appendix 5).

Chemically the Proterozoic Hudson and Nueltin-type granites are silicic, potassic rocks (Appendix 5) that are characterized as calc-alkaline and peraluminous granites (Figures 9A and 9B). On the granite discrimination diagrams of Pearce et al. (1984), they show a stronger affinity to syn-COLG (Figures 9C and 9D). Sample 0211-1163, a REE-enriched fluoritic granite plots in the within-plate granite (WPG) field (Figures 8C and 8D); this probably reflects an associated Y enrichment. On the chondrite-normalized extended trace element diagrams (Figures 10A and 10B), the Hudson and Nueltin granites have very similar profiles, with enriched LREE relative to the HREE, strong negative Nb and Ti anomalies, and a generally weak negative Eu anomaly. These features are similar to the chemical patterns obtained by Peterson et al. (2002) for Hudson and Nueltin granites in Nunavut. Other features in common are the abundant inherited zircon cores in the Hudson granites and enriched εNd value of -10.74 for one of the SHRIMP-dated Hudson granites (see Harper and van Breemen, this volume), also indicative of crustal melting of an Archean source.


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Figure 9 - Geochemical diagrams for the Proterozoic intrusions. A) Alkalis versus silica (Frost et al., 2001); B) ASI Index versus Na+K/Al (Frost et al., 2001); and C) and D) Tectonic environment granite discrimination diagrams (Pearce et al., 1984).

The lepidolite pegmatite sample (0211-1501, Appendix 5) has very high concentrations of Li, Rb, Cs, Nb, Ta, Sn, Be, Tl, Ga, and Ge as well as exceptionally low MgO, CaO, Fe2O3, TiO2, Sr, Ba, and REE concentrations. Some of these features are clearly discernible on the chondrite-normalized extended element diagram (Figure 11) comparing the pegmatite with selected Hudson and Nueltin granites. This chemical signature is characteristic of S-type, complex rare element granitic pegmatites (Breaks and Moore, 1992; Shearer et al., 1992; Sillitoe, 1996) as well as ore-grade lithium pegmatites such as the Bernic Lake pegmatites (Goad and Černý, 1981). These types of pegmatites typically form from volatile-rich magmas commonly associated with post-tectonic granitic intrusions (London, 1992; Shearer et al., 1992). The fluoritic Nueltin granite suite is a likely candidate from which volatile-rich magma could have originated. The Li content of several of these granites at Spratt Lake average about 45 ppm, which is just above the average granite content of 30 ppm (see Table B in MacDougall, 2002). Clasts of this type of pegmatite generally are not likely to travel very far, thus boulder prospecting should be effective in finding a source area for this prospective rare element pegmatite.

7. Iron Sulphide– and Quartz Vein–bearing Samples In addition to the samples of iron formation and other intrusion- and mafic volcanic-hosted mineral occurrences listed in Appendices 2 to 5, 11 samples of iron sulphide–bearing rocks, many of which were locally transported boulders, were collected and analysed for a suite of trace elements (Appendix 6). Most of these samples are pyrite and or pyrrhotite bearing with or without trace amounts of chalcopyrite. Several samples contained pyritic quartz veins and were collected specifically to check for possible gold enrichment. A number of these samples contain threshold to anomalous concentrations of Cu (maximum 883 ppm), Zn (maximum 1180 ppm), and Au (maximum 533 ppb). Sample 0111-4032, a mafic volcanic rock with pyritic quartz veins and which contains 533 ppb Au, was collected from an area of known mafic volcanic-hosted auriferous quartz vein showings, approximately 6.5 km west of the southwest end of Hatle Lake. This location is also near the iron formation-hosted Nirdac Creek gold occurrence (Assessment Files 64M-0006 and 64M-14-0006).


Figure 10 - Chondrite-normalized extended element diagrams for A) Hudson granites, and B) Nueltin granites and felsite. Chondrite normalizing values are from Taylor and McLennan (1985).

8. Conclusions Based on the geochemical analysis of the major rock units from the Phelps Lake Project presented here the following conclusions can be made:

1) Archean tonalitic migmatites and tonalite gneiss intrusions are calcic, peraluminous rocks, with apparent VAG affinity, high Sr/Y and La/Yb ratios, and neutral to positive Eu anomaly. These characteristics are similar to those of Archean tonalite-trondhjemite-granodiorite suites, that are thought to have formed through partial melting of a shallow subducting, garnet-bearing, basaltic crust (Drummond et al., 1996; Smithies and Champion, 2000).

2) Archean granitic intrusions are calc-alkalic, peraluminous rocks with transitional VAG to syn-collisional granite affinities.

3) The Archean Ennadai Group mafic volcanic rocks are subalkaline, high-Fe to high-Mg tholeiites with transitional MORB to VAB character, which is typical of volcanic arc-back arc basin settings. The felsic


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(198

5).


volcanic rocks are calc-alkaline, and typical of a volcanic arc setting. The chemical signature of the various iron formation facies particularly with a strong positive Eu anomaly are typical of iron formations formed from hydrothermal fluids and possibly associated with volcanic-hosted massive sulphide deposits.

4) Several samples of weakly to strongly iron sulphide–bearing volcanic rocks and mafic volcanic-hosted pyritic quartz veins, although not providing spectacular geochemical results indicate there may be potential for base and precious metal occurrences/deposits in the region.

5) Hurwitz Group pelitic and ferruginous pelitic schists and associated iron formations have similar rare earth element profiles as the North American Shale Composite. The general negative Eu anomaly of these ferruginous pelites and iron formations is characteristic of shale/mudstone-hosted iron formations and Red Sea metalliferous sediments (Peter, 2003); however, they show only background base and precious metal concentrations.

6) The Proterozoic intrusions are subdivided into two age groups, the 1.85 to 1.8 Ga Hudson granite and the 1.76 to 1.75 Ga Nueltin granite suites. Chemically, both suites are silicic, potassic, calc-alkaline, and peraluminous, with syn-COLG affinity. The Nueltin granites have a tendency to be porphyritic, fluorite-bearing, and may be REE-enriched.

7) An undeformed, lepidolite pegmatite boulder, that has very high concentrations of Li, Rb, Cs, Nb, Ta, Sn, Be, Tl, Ga, and Ge, is similar to complex, rare element pegmatites of the Bernic Lake type (Goad and Černý, 1981; Breaks and Moore, 1992). Such pegmatites form from volatile-rich magmas commonly associated with post-tectonic granitic intrusions. The fluoritic Nueltin granite suite is a likely candidate from which the rare element pegmatite could have originated, and thus the boulder’s source may lie nearby to the north or northeast where several such plutons exist.

9. Acknowledgments The author wishes to extend his thanks and appreciation to all the personnel from 2001 to 2003 that helped make this project a success and for their parts in collecting the samples reviewed in this paper. Thanks to Ralf Maxeiner and Colin Card for their careful edit of the paper.

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Appendix 1 – Analytical Techniques The following procedures were used by Activation Laboratories Ltd. (Actlabs) in processing the rock samples supplied by Saskatchewan Industry and Resources. The samples were prepared for analyses by crushing the sample to minus 10 mesh, mechanically splitting the sample and then pulverizing with mild steel to obtain at least 95% at minus 150 mesh. For research quality analyses, Actlabs uses a lithium metaborate–tetraborate fusion ICP technique for the whole rock package (major oxides plus Ba, Sr, Y, Sc, Zr, Be, and V) and for the 45 trace and rare earth element ICP-MS package (also includes Ba, Sr, Y, Zr, and V). To obtain lower detection limits for certain elements (Ag, As, Au, Bi, Br, Cd, Cr, Cu, Ir, Ni, S, Sc, Se, and Zn), some of which are not included in the standard trace element package; the analyses are done by INAA. Fluorine was done as an add-on to the above package by ISE. Lithium was analysed by ICP-MS following an aqua regia extraction. The mineralized samples listed in Appendix 6 were encapsulated, irradiated, and measured in a multielement mode by INAA for Au plus 34 trace elements at enhanced detection limits.

Every tenth sample in a submitted batch underwent a replicate analysis. In addition, internal Actlabs standards were run with each batch and those values included along with the accepted values with each report. The accuracy of analyses was consistently very high.


Appendix 2 – Geochemical Data for the Archean Migmatites and Intrusive Rocks of the Phelps Lake Region UTM Coordinates are for Zone 13, Based on NAD 83. Note: Gb, gabbro; DM, dioritic migmatite; TM, tonalitic migmatite; Tg, tonalite gneiss; GL, leucogranite gneiss; G, granite gneiss; al, allanite; n/a, not analysed; and py, pyrite; negative values are below detection limit for that element.

SAMPLE 0311-1030 0111-339 0111-378 0111-128 0311-5002 0211-1093 0211-1140 0311-5003 0311-5007 0311-1063 0311-2059 0211-1116 0311-5001 0311-1011 0311-1060 0111-10 0111-10/R 0111-55 0111-116 0111-4016 0111-2144B 0111-2192A 0111-2192AR 0211-1060 0211-1071 0211-1071 /R 0311-1068Rock Name Gb DM TM TM TM Tg Tg Tg Tg Tg Tg Tg,py, al GL GL GL G G G GL G GL GL GL GL GL GL G, pyUTM E 641970 594707 584522 557441 636870 627169 616815 641639 598222 632290 647700 617561 636915 645375 637108 567103 567103 569026 582684 562555 557437 574450 574450 663073 665866 665866 651710UTM N 6617876 6625345 6599320 6626201 6608540 6619209 6607912 6613638 6569811 6637383 6623925 6629622 6608542 6614016 6649929 6646207 6646207 6643933 6635082 6641898 6633742 6624980 6624980 6632357 6636747 6636747 6635700SiO2 % 50.68 65.61 72.04 73.09 68.03 65.96 72.81 70.27 66.41 72.45 66.99 73.33 72.86 73.09 75.07 74.45 73.75 74.78 73.09 73.45 72.03 74.07 73.92 72.79 73.22 72.84 65.63TiO2 % 0.255 0.495 0.219 0.127 0.330 0.539 0.119 0.194 0.374 0.171 0.256 0.119 0.066 0.103 0.040 0.134 0.133 0.065 0.224 0.126 0.188 0.152 0.166 0.262 0.186 0.180 0.316Al2O3 % 6.26 15.09 16.12 15.46 15.78 16.13 15.06 15.92 15.27 14.65 16.48 14.61 14.74 13.74 13.82 13.99 13.81 13.80 14.28 14.31 14.63 14.24 14.10 13.93 14.48 14.37 14.27Fe2O3 % 12.38 5.56 1.50 1.08 3.98 4.81 1.13 1.91 3.69 1.84 3.23 1.75 1.00 1.28 0.64 1.49 1.45 1.27 1.81 1.58 1.50 1.61 1.60 1.88 1.36 1.43 5.56MnO % 0.256 0.067 0.015 0.009 0.055 0.056 0.019 0.025 0.054 0.030 0.049 0.017 0.013 0.025 0.013 0.024 0.024 0.011 0.019 0.050 0.014 0.019 0.019 0.026 0.019 0.019 0.051MgO % 15.89 2.75 0.43 0.50 1.45 1.73 0.30 0.65 2.34 0.44 1.22 0.36 0.16 0.25 0.10 0.34 0.36 0.12 0.55 0.28 0.47 0.51 0.50 0.55 0.31 0.31 1.42CaO % 10.79 3.44 2.91 2.92 3.59 4.54 2.20 3.11 4.36 2.25 3.97 3.12 1.25 1.09 1.14 0.90 0.89 0.80 1.63 0.74 1.44 2.39 2.35 1.19 1.27 1.25 2.13Na2O % 0.79 3.74 5.55 5.24 4.68 4.37 4.45 5.04 4.78 4.58 4.47 4.81 3.42 3.35 4.33 3.74 3.72 3.35 4.13 3.74 3.42 4.22 4.29 4.13 4.89 4.85 3.86K2O % 0.86 2.43 1.08 1.32 1.30 1.42 2.98 1.33 1.61 2.16 1.18 0.70 5.50 5.61 4.02 4.72 5.06 5.55 4.19 5.23 5.10 2.51 2.61 4.20 3.99 3.87 2.61P2O5 % 0.02 0.17 0.08 0.05 0.21 0.14 0.04 0.07 0.15 0.06 0.07 0.03 0.04 0.05 0.02 0.10 0.10 0.04 0.08 0.07 0.08 0.06 0.06 0.07 0.07 0.06 0.12LOI % 1.83 0.65 0.23 0.29 0.50 0.60 0.25 0.50 0.73 0.55 0.83 0.41 0.37 0.17 0.40 0.34 0.34 0.44 0.45 0.57 0.57 0.42 0.46 0.59 0.34 0.34 2.83TOTAL % 100.00 100.00 100.17 100.08 99.91 100.31 99.36 99.02 99.76 99.19 98.75 99.26 99.43 98.74 99.59 100.24 99.64 100.23 100.45 100.14 99.45 100.20 100.07 99.63 100.14 99.52 98.78Cr ppm 220 124 8 -20 21 47 8 18 67 14 19 -5 11 10 11 36 -20 -20 27 -20 -20 -20 -20 40 24 n/a 15Ni ppm 178 53 -20 -20 20 -20 2 12 52 6 17 2 7 5 3 -20 -20 -20 -20 -20 -20 -20 -20 -20 -20 -20 17Co ppm 68 17 2 1 9 13 -1 5 12 3 8 -1 1 2 -1 1 1 -1 3 1 2 3 3 6 2 n/a 13Sc ppm 64 11.3 1.4 -1 7.1 8.2 1.4 3.1 7.2 2.4 4.8 1.5 1 1.8 0.7 4 4 5 2 2 3 3 2 3 1.3 n/a 4V ppm 196 90 16 14 55 88 11 25 68 19 38 12 7 8 10 11 11 9 22 10 15 21 16 22 15 15 42Cu ppm 44 50 -10 11 19 55 12 5 4 3 5 31 12 4 4 -10 -10 32 -10 -10 -10 -10 11 14 -10 17 22Pb ppm 4 22 19 9 18 10 24 19 10 11 13 32 47 41 37 16 19 26 23 20 25 21 16 22 23 19 25Zn ppm 86 75 80 -30 119 98 94 74 81 65 64 69 68 47 34 38 39 41 45 72 34 -30 35 46 53 56 69Bi ppm 0.8 0.4 0.3 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.1 0.2 -0.1 -0.1 -0.1 0.1 0.2 0.2 2.2Cd ppm 1.3 n/a n/a n/a 0.7 n/a -0.3 -0.3 0.6 0.4 0.7 -0.3 -0.3 0.4 0.5 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 0.7In ppm -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1Sn ppm -1 -1 -1 1 -1 -1 -1 -1 1 -1 -1 -1 -1 -1 -1 4 8 2 -1 5 3 5 1 2 -1 2 -1W ppm -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 0.6 -0.5 -0.5 -0.5 -0.5 0.6 -0.5 -0.5 0.8 0.6 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 1.8Mo ppm -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2S % 0.005 n/a n/a n/a 0.016 n/a -0.001 0.005 0.002 -0.001 0.044 0.040 0.011 0.004 0.002 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 2.498As ppm -0.5 -0.5 -0.5 -5 1.3 1.8 -0.5 2.6 1.4 1.5 1.1 1.1 1.6 -0.5 -0.5 -5 -5 -5 -5 -5 -5 -5 -5 -0.5 1.2 -5 1.5Se ppm -3 -3 -3 n/a -3 -3 -3 -3 -3 -3 -3 -3 -3 -3 -3 n/a n/a n/a n/a n/a n/a n/a n/a -3 -3 n/a -3Sb ppm 0.6 -0.2 -0.2 -0.2 0.4 -0.1 -0.1 0.3 -0.1 0.2 2.7 0.2 0.3 0.3 0.3 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.1 -0.1 0.5Ag ppm -0.3 -0.5 -0.5 -0.5 -0.3 -0.5 -0.3 0.4 -0.3 -0.3 -0.3 -0.3 0.4 0.3 -0.3 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 0.7Ir ppb -5 -5 -5 n/a -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 n/a n/a n/a n/a n/a n/a n/a n/a -5 -5 n/a -5Au ppb -2 -2 -2 n/a 3 -2 -2 4 -2 -2 6 -2 -2 -2 -2 n/a n/a n/a n/a n/a n/a n/a n/a -2 -2 n/a -2Rb ppm 50 87 42 32 75 38 128 37 53 57 227 46 132 233 174 261 255 243 160 345 163 118 124 214 164 153 103Cs ppm 13.3 5.0 2.3 0.4 2.8 0.7 12.0 2.0 1.9 2.8 140 17.2 1.8 7.3 3.1 6.7 6.6 3.0 5.7 11.7 2.5 3.3 3.4 2.3 6.0 5.5 15.5Ba ppm 57 849 269 397 331 524 732 438 360 539 286 156 1747 909 675 609 594 606 1,150 597 1,240 775 770 814 776 723 940Sr ppm 35 657 790 624 447 619 563 701 775 329 435 450 405 259 180 104 104 105 417 94 410 432 420 194 326 316 566Tl ppm 0.50 0.57 0.32 0.20 0.62 0.24 0.13 0.31 0.06 0.37 2.81 0.45 0.88 1.92 1.20 1.42 1.54 1.47 0.94 2.14 0.88 0.71 0.60 1.10 0.89 0.77 1.34Ga ppm 10 19 17 18 18 19 18 18 16 18 17 17 15 14 15 23 22 23 21 27 21 23 23 22 22 21 16Ge ppm 2.2 1.0 0.6 0.5 0.7 0.9 -0.5 -0.5 0.8 0.8 0.7 0.7 0.7 0.8 0.7 1.0 1.1 1.1 1.2 1.4 0.9 1.1 0.9 1.1 0.9 0.8 0.6Ta ppm 0.07 0.37 0.09 1.07 0.21 0.23 0.21 0.13 0.22 0.71 0.33 0.20 0.20 0.57 0.28 3.25 3.40 2.48 1.38 4.91 2.12 1.56 0.91 2.44 0.86 0.77 0.21Nb ppm 1.7 4.7 1.7 1.7 3.2 4.9 4.4 1.6 2.8 5.4 4.2 4.6 1.5 5.1 2.0 16.2 16.2 9.4 7.7 24.5 5.8 4.8 7.4 17.8 9.6 8.6 3.2Hf ppm 0.4 3.7 3.4 2.5 1.3 4.1 1.8 2.0 2.8 2.5 2.4 1.5 1.2 3.1 2.0 3.9 3.6 2.8 3.7 3.7 5.0 2.6 2.2 5.1 3.3 3.2 3.5Zr ppm 8 141 145 93 59 174 54 79 120 102 104 50 47 108 64 125 122 83 149 130 202 90 88 223 138 135 145Y ppm 6.1 11.3 1.8 0.5 6.2 8.8 2.0 2.9 6.8 4.6 11.5 3.7 2.5 8.1 3.9 35.3 34.7 19.8 3.2 21.1 10.3 4.3 4.2 19.4 7.2 6.7 4.3Th ppm 0.13 6.57 2.89 0.25 5.94 7.22 2.56 1.75 4.68 2.87 2.28 76.3 4.92 61.2 11.5 19.0 18.2 16.0 19.3 18.3 18.9 13.2 12.2 24.1 16.8 15.7 6.12U ppm 0.07 1.40 0.54 0.17 0.79 0.27 0.68 0.53 0.53 0.48 0.49 1.68 1.41 4.92 1.78 5.76 5.35 2.16 3.43 6.64 1.77 2.54 3.05 3.68 2.83 2.66 16.8La ppm 3.36 35.4 19.5 4.19 35.1 42.0 6.30 9.93 24.3 13.3 11.7 58.8 6.92 33.0 11.1 32.8 30.7 36.8 49.0 53.1 40.8 22.9 16.5 60.9 21.1 19.7 10.5Ce ppm 6.18 73.3 40.4 7.88 67.8 75.8 12.1 17.9 48.4 23.7 21.4 111 12.8 74.0 21.2 71.6 66.4 71.3 76.2 102 76.5 42.2 31.1 112 40.9 38.3 21.0Pr ppm 0.84 7.93 4.11 0.79 7.63 7.25 1.24 2.07 6.14 2.41 2.31 12.5 1.39 6.59 2.00 7.58 7.14 7.17 6.58 10.1 7.18 3.92 3.29 10.3 3.84 3.58 2.42Nd ppm 3.31 30.5 15.4 2.80 27.4 25.0 4.28 7.36 23.6 8.36 8.45 42.1 4.83 20.6 6.57 27.5 26.4 24.3 20.0 34.0 25.2 12.8 11.0 33.3 12.9 12.0 8.68Sm ppm 0.75 4.81 2.29 0.43 3.80 3.90 0.82 1.27 3.80 1.49 1.60 5.88 0.84 3.11 1.09 6.28 5.86 4.44 2.26 5.63 4.10 1.81 1.53 5.24 2.34 2.16 1.58Eu ppm 0.346 1.31 0.784 0.339 0.958 1.34 0.258 0.373 0.956 0.481 0.528 0.619 0.475 0.517 0.429 0.564 0.522 0.531 0.657 0.559 1.18 0.684 0.600 0.739 0.560 0.516 0.524Gd ppm 0.84 3.48 1.37 0.21 2.75 2.54 0.52 0.87 2.74 1.03 1.70 2.63 0.63 1.78 0.67 5.14 5.07 3.13 0.74 3.16 2.46 0.95 0.82 3.40 1.56 1.47 1.16Tb ppm 0.15 0.44 0.13 0.03 0.25 0.33 0.08 0.10 0.28 0.15 0.28 0.20 0.08 0.25 0.10 1.00 0.97 0.58 0.14 0.59 0.40 0.15 0.14 0.54 0.22 0.21 0.15Dy ppm 0.98 2.24 0.44 0.10 1.16 1.67 0.37 0.52 1.25 0.75 1.65 0.88 0.42 1.30 0.55 6.20 5.89 3.29 0.59 3.24 2.03 0.77 0.72 2.98 1.14 1.06 0.81Ho ppm 0.21 0.41 0.06 0.02 0.19 0.30 0.06 0.09 0.20 0.13 0.35 0.12 0.08 0.25 0.10 1.22 1.20 0.64 0.10 0.64 0.35 0.14 0.14 0.60 0.22 0.20 0.14Er ppm 0.71 1.09 0.14 0.05 0.52 0.87 0.17 0.25 0.57 0.40 1.23 0.30 0.24 0.80 0.32 3.36 3.25 1.67 0.30 1.76 0.88 0.39 0.39 1.92 0.64 0.60 0.44Tm ppm 0.104 0.144 0.015 0.009 0.067 0.105 0.024 0.035 0.076 0.057 0.196 0.034 0.036 0.124 0.044 0.569 0.552 0.266 0.034 0.317 0.103 0.059 0.051 0.288 0.092 0.083 0.064Yb ppm 0.69 0.98 0.12 0.07 0.44 0.70 0.17 0.23 0.54 0.40 1.30 0.21 0.26 0.86 0.31 3.36 3.22 1.52 0.25 2.06 0.62 0.39 0.34 1.80 0.57 0.53 0.44Lu ppm 0.113 0.150 0.015 0.010 0.067 0.094 0.026 0.036 0.081 0.063 0.204 0.029 0.041 0.140 0.051 0.506 0.477 0.218 0.038 0.295 0.087 0.059 0.057 0.258 0.084 0.076 0.075F % n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 0.02 0.02 0.02 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 0.05Br ppm -0.5 -0.5 -0.5 NA -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 1 -0.5 -0.5 -0.5 -0.5 n/a n/a n/a n/a n/a n/a n/a n/a -0.5 -0.5 n/a -0.5Be ppm 1 1 -1 2 2 1 2 2 2 2 2 2 1 2 2 4 4 2 2 4 3 4 3 3 2 2 2


Appendix 3 – Geochemistry of Ennadai Group Volcanic and Sedimentary Rocks UTM Coordinates are for Zone 13 and Based on NAD 83. Note: EVM, Ennadai mafic volcanic regional samples; EVM Bono, mafic volcanic samples from Bonokoski Lake; EVM min, weakly pyrite, pyrrhotite, ±chalcopyrite-bearing Ennadai mafic volcanic rocks, EVMminQV, with pyritic quartz veins; EVFr, Ennadai felsic (rhyolite) volcanic; ESIFo,s,k, Ennadai iron formation, oxide, sulphide, silicate facies; and n/a, not analysed; negative values are below detection limit for those elements.

SAMPLE 0211-1096 0111-1018 0111-1019 0111-4030 0411-0002 0411-0003 0311-1046 0311-5006 0111-2162 0111-2172 0111-1004 0111-1006 0111-1007 0111-1011 0111-1013 0111-1014 0111-1017 0111-286 0111-1020 0111-107 0411-0005 0311-1140 0311-1144 0311-2056 0311-3040 0111-333 0111-338Rock Name EVM EVM EVM EVM EVM EVM EVM EVM EVM Bono EVM Bono EVM Bono EVM Bono EVM Bono EVM Bono EVM Bono EVM Bono EVM Bono EVFr EVFr EVFr EVFr ESIF ESIF ESIF ESIF ESIF ESIFUTM E 625070 595918 596181 577801 580783 580783 642957 598231 589324 591398 591353 591541 591486 591266 591236 591309 591210 600650 597726 578700 586682 564633 605569 653429 601455 591541 591421UTM N 6618557 6646635 6645175 6647678 6648743 6648743 6638760 6569826 6616543 6624682 6625539 6625299 6625279 6624389 6623676 6623665 6623570 6648375 6648870 6637750 6643387 6565687 6581689 6629553 6559138 6625299 6624804SiO2 % 49.45 49.46 48.52 48.84 51.38 51.43 48.42 47.56 56.62 42.73 50.28 48.93 48.46 50.92 48.13 48.81 44.33 64.95 64.23 70.80 70.01 83.35 45.99 30.48 72.04 50.87 47.28TiO2 % 0.829 0.725 0.606 0.972 1.407 0.979 1.191 0.987 1.063 1.325 1.282 1.215 1.595 1.893 1.114 0.889 0.952 0.362 0.626 0.227 0.422 0.019 2.117 0.368 0.005 0.082 0.017Al2O3 % 14.61 14.60 15.56 15.96 14.08 8.62 12.62 14.71 14.05 14.74 13.51 13.76 13.08 12.94 14.50 13.76 15.69 17.79 16.96 15.64 14.51 0.82 11.75 8.29 0.14 1.28 0.45Fe2O3 % 12.34 11.40 11.61 12.38 11.95 11.95 16.51 14.08 11.52 19.45 15.61 15.51 17.14 18.72 14.61 14.44 13.64 3.25 5.14 1.95 4.53 7.77 20.89 39.79 20.42 44.74 50.34MnO % 0.187 0.199 0.195 0.234 0.259 0.223 0.249 0.198 0.161 0.243 0.215 0.216 0.246 0.220 0.261 0.203 0.197 0.032 0.075 0.028 0.040 0.372 0.261 0.109 0.158 0.050 0.032MgO % 7.95 7.73 9.52 6.99 4.82 11.63 6.52 7.19 3.93 8.32 6.07 6.97 6.13 4.41 5.02 7.80 9.13 1.52 1.31 0.84 1.30 2.52 6.02 1.54 2.72 1.27 1.25CaO % 9.32 10.89 10.18 10.46 10.81 11.68 9.71 10.83 6.87 9.76 10.65 9.72 9.99 7.56 12.12 10.45 11.90 4.41 4.86 2.66 3.16 2.76 9.98 0.93 2.45 2.51 2.01Na2O % 2.83 2.12 2.27 2.89 3.81 1.84 2.79 2.93 3.48 2.23 1.33 2.03 2.11 2.54 2.77 2.06 2.17 5.17 3.35 5.41 4.54 0.25 2.18 0.53 0.17 0.12 0.06K2O % 0.95 0.70 0.57 0.43 0.76 0.40 0.62 0.72 0.68 0.26 0.14 0.86 0.28 0.31 0.32 0.11 0.35 1.43 1.90 0.83 1.08 -0.01 0.32 2.12 0.02 -0.01 -0.01P2O5 % 0.53 0.06 0.05 0.09 0.14 0.07 0.09 0.08 0.12 0.09 0.13 0.12 0.13 0.20 0.11 0.06 0.06 0.17 0.30 0.08 0.12 0.03 0.13 0.03 0.06 0.14 0.13LOI % 1.35 1.68 1.25 1.03 0.57 1.10 1.02 0.74 0.94 0.90 1.04 0.88 0.67 0.34 0.96 0.69 0.52 1.12 0.72 1.10 0.40 0.70 -0.01 14.91 0.37 -0.66 -1.37TOTAL % 100.36 99.57 100.32 100.27 99.99 99.93 99.74 100.02 99.44 100.05 100.26 100.20 99.84 100.05 99.91 99.27 98.93 100.19 99.47 99.57 100.11 98.58 98.59 99.10 98.54 100.36 100.16Cr ppm 343 218 260 334 12 678 38 237 75 194 165 177 123 42 76 139 276 28 -5 29 6 22 36 85 20 22 15Ni ppm 163 141 161 102 113 235 49 130 44 99 69 85 84 26 67 112 171 29 -20 -20 13 12 44 381 8 -20 -20Co ppm 47 46 56 48 57 66 48 49 33 59 51 52 51 45 53 58 58 9 9 5 7 5 54 123 5 4 3Sc ppm 42.8 33 36.2 42 22.9 36.7 53 42.1 27 48 38.4 37.9 43.1 40.4 42.7 40.9 31.6 4.6 10.3 5 5.6 0.8 53.4 10.4 0.7 2.3 1V ppm 304 229 218 272 291 244 394 287 267 353 299 302 379 289 310 302 259 39 20 31 41 9 570 90 7 23 7Cu ppm 78 122 118 75 67 18 47 112 111 127 200 186 159 102 199 153 17 -10 21 27 4 189 198 500 300 27 60Pb ppm -5 9 -5 6 -3 -3 7 7 -5 -5 -5 -5 -5 -5 -5 -5 -5 9 8 -5 -3 4 5 36 8 -5 -5Zn ppm 114 85 73 127 111 107 115 93 107 142 107 120 128 156 121 97 62 47 98 -30 24 77 100 89 58 48 33Bi ppm 0.1 -0.1 0.2 -0.1 2.8 1.3 0.2 0.2 0.3 -0.1 0.2 -0.1 -0.1 0.1 -0.1 -0.1 -0.1 0.2 -0.1 -0.1 0.2 0.2 0.9 0.4 0.3 0.2 0.8Cd ppm n/a n/a n/a n/a 1.2 2.3 1.6 1.5 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a -0.3 -0.3 1.2 3.1 1.5 n/a n/aIn ppm -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 11.6 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1Sn ppm -1 -1 1 2 12 10 -1 -1 4 27 -1 -1 1 1 -1 -1 -1 -1 2 -1 9 -1 -1 -1 -1 -1 -1W ppm -0.5 -0.5 -0.5 0.7 0.6 1.5 -0.5 -0.5 0.6 -0.5 -0.5 0.6 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 0.9 -0.5 -0.5 -0.5Mo ppm -2 -2 -2 -2 -1 -1 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -1 -2 -2 6 -2 -2 -2S % n/a n/a n/a n/a 0.017 0.007 0.044 0.049 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 0.004 0.772 0.265 16.132 0.756 n/a n/aAs ppm 2.5 5.7 1.8 -5 4.3 1.2 1.6 1 -5 -5 -0.5 1.1 -0.5 -0.5 -0.5 -0.5 -0.5 0.9 -0.5 -5 -0.5 2 2.8 8.1 2.2 0.5 -0.5Se ppm -3 -3 -3 n/a -3 -3 -3 -3 n/a n/a -3 4 -3 -3 -3 -3 -3 -3 -3 n/a -3 -3 -3 -3 -3 -3 -3Sb ppm -0.1 -0.2 -0.2 -0.2 -0.1 -0.1 -0.1 -0.1 -0.2 7.4 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.1 0.1 -0.1 1.6 -0.1 -0.2 -0.2Ag ppm -0.5 0.6 -0.5 -0.5 -0.3 -0.3 -0.3 -0.3 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 0.4 0.6 -0.3 2.0 0.5 -0.5 -0.5Ir ppb -5 -5 -5 n/a -5 -5 -5 -5 n/a n/a -5 -5 -5 -5 -5 -5 -5 -5 -5 n/a -5 -5 -5 -5 -5 -5 -5Au ppb -2 -2 9 n/a -2 -2 -2 -2 n/a n/a 4 -2 -2 7 3 14 5 -2 3 n/a -2 -2 2 6 -2 -2 -2Hg n/a n/a n/a n/a -1 -1 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a -1 n/a n/a n/a n/a n/a n/aRb ppm 14 20 13 8 20 8 8 12 15 5 5 48 7 5 6 3 5 32 50 28 43 -1 10 68 -1 3 3Cs ppm 0.6 1.2 1.8 1.0 1.1 0.6 0.6 0.3 0.9 0.2 0.3 1.5 0.5 0.3 0.6 0.3 0.2 1.1 1.7 3.2 1.9 0.1 0.8 3.4 0.3 0.3 0.1Ba ppm 135 175 555 85 203 204 54 54 106 30 24 97 32 35 48 19 86 458 295 552 555 12 67 194 2 15 16Sr ppm 138 171 147 248 293 140 114 147 225 54 122 111 80 71 161 107 151 486 272 127 194 8 98 32 13 9 13Tl ppm 0.12 0.06 0.06 0.08 0.23 0.08 0.11 0.07 0.10 -0.05 -0.05 0.12 -0.05 -0.05 0.05 -0.05 -0.05 0.12 0.16 0.11 0.33 -0.05 0.18 0.37 -0.05 -0.05 0.06Ga ppm 20 15 14 20 18 12 16 15 25 22 18 17 20 21 19 17 18 19 23 23 16 1 19 10 1 3 1Ge ppm 1.6 1.3 1.4 1.4 1.9 2.0 1.8 1.4 1.8 1.7 1.5 1.7 1.8 1.7 1.3 1.6 1.3 0.9 1.1 0.7 1.1 1.5 1.5 1.4 2.6 4.9 5.5Ta ppm 0.23 0.11 0.09 1.42 0.47 0.20 0.13 0.09 1.53 1.42 0.38 0.30 0.28 0.46 0.24 0.13 0.15 0.32 0.87 1.53 0.79 0.04 0.27 0.25 -0.01 0.02 0.01Nb ppm 4.7 2.1 1.8 4.4 8.3 3.8 2.6 2.0 4.2 6.1 5.2 3.8 4.0 5.9 3.7 2.6 2.7 4.3 8.6 3.1 7.2 0.8 4.6 3.4 0.6 0.9 0.8Hf ppm 1.5 1.2 1.0 2.1 3.1 2.0 1.4 1.7 2.7 3.0 2.7 1.9 2.4 3.6 1.7 1.3 1.2 2.8 6.0 3.0 4.9 0.5 1.8 2.1 0.1 0.2 -0.1Zr ppm 54 40 34 75 109 66 53 70 109 108 89 60 74 115 61 47 40 98 225 119 169 12 62 88 3 11 4Y ppm 23.0 16.8 13.7 26.0 24.3 14.3 24.4 21.9 20.3 32.2 30.5 25.9 32.6 46.5 24.4 18.3 15.8 5.5 33.9 4.0 16.6 4.9 31.0 11.0 5.9 6.7 5.5Th ppm 0.41 0.29 0.25 0.79 0.94 0.36 0.24 0.37 1.44 0.95 1.58 1.10 0.72 1.08 0.62 0.37 0.39 4.04 3.16 3.31 3.97 0.47 0.35 2.80 0.12 0.32 0.22U ppm 0.15 0.05 0.05 0.18 0.36 0.10 0.49 0.15 0.36 0.26 0.21 0.15 0.10 0.20 0.11 0.06 0.06 0.81 0.72 1.19 0.94 0.21 0.62 0.78 0.38 0.03 0.05La ppm 9.29 2.38 1.79 5.56 8.32 3.54 4.87 3.78 9.88 8.48 6.63 6.20 5.57 8.81 6.25 2.65 3.73 23.6 25.5 16.2 21.7 3.18 3.05 12.7 2.62 2.80 2.60Ce ppm 22.8 6.43 5.08 14.1 21.4 9.76 11.8 8.75 21.4 21.4 17.6 14.8 14.6 22.6 14.9 7.08 9.42 50.9 55.0 28.6 42.2 5.36 8.12 24.3 4.98 5.21 4.43Pr ppm 2.70 0.93 0.79 1.96 3.07 1.46 1.77 1.36 2.58 2.87 2.36 2.02 2.13 3.21 2.01 1.05 1.39 5.60 6.34 2.82 4.38 0.64 1.35 2.64 0.61 0.58 0.49Nd ppm 11.6 5.08 4.23 9.86 15.2 7.50 8.54 6.76 11.4 14.0 11.7 10.0 11.5 16.3 9.78 5.51 7.26 21.6 27.0 10.6 16.3 2.43 7.39 10.2 2.58 2.50 2.22Sm ppm 3.21 1.70 1.35 3.00 4.35 2.44 2.53 2.11 3.12 4.30 3.40 3.00 3.55 5.04 2.80 1.87 2.26 3.08 5.80 1.90 3.29 0.50 2.79 2.12 0.57 0.61 0.49Eu ppm 0.972 0.710 0.581 1.06 1.63 0.892 1.00 0.818 1.11 1.42 1.23 1.11 1.41 1.90 1.13 0.813 1.08 0.885 1.79 0.570 0.934 0.360 1.10 0.690 0.428 0.535 0.532Gd ppm 3.65 2.20 1.86 3.77 4.88 2.84 3.32 2.92 3.28 5.03 3.91 3.62 4.58 6.47 3.38 2.45 2.71 1.87 5.99 1.27 3.16 0.51 4.21 2.05 0.70 0.71 0.56Tb ppm 0.67 0.42 0.35 0.71 0.92 0.56 0.65 0.57 0.57 0.92 0.79 0.65 0.82 1.15 0.62 0.46 0.46 0.22 0.95 0.18 0.57 0.08 0.85 0.32 0.11 0.13 0.10Dy ppm 3.87 2.84 2.38 4.60 5.25 3.19 3.95 3.48 3.52 5.95 5.26 4.43 5.60 7.99 4.17 3.26 3.02 1.04 5.98 0.81 3.17 0.56 5.19 1.83 0.73 0.89 0.59Ho ppm 0.84 0.60 0.52 1.00 0.99 0.60 0.84 0.75 0.71 1.32 1.13 0.94 1.17 1.71 0.93 0.67 0.61 0.18 1.20 0.14 0.62 0.13 1.09 0.38 0.16 0.19 0.13Er ppm 2.53 1.82 1.51 2.67 3.03 1.80 2.74 2.45 1.99 3.59 3.21 2.79 3.38 5.11 2.65 2.00 1.60 0.52 3.46 0.34 1.91 0.41 3.52 1.15 0.53 0.58 0.41Tm ppm 0.367 0.270 0.232 0.432 0.473 0.270 0.408 0.359 0.291 0.579 0.523 0.404 0.520 0.813 0.401 0.296 0.226 0.071 0.499 0.045 0.313 0.061 0.520 0.182 0.081 0.083 0.064Yb ppm 2.20 1.89 1.47 2.69 2.79 1.69 2.53 2.22 1.76 3.49 3.22 2.76 3.41 5.20 2.76 2.04 1.44 0.48 3.45 0.32 1.99 0.41 3.18 1.17 0.54 0.53 0.43Lu ppm 0.321 0.273 0.219 0.405 0.388 0.230 0.401 0.356 0.266 0.515 0.483 0.403 0.485 0.747 0.392 0.301 0.219 0.073 0.495 0.045 0.299 0.070 0.496 0.188 0.091 0.089 0.065Br ppm -0.5 -0.5 -0.5 n/a -0.5 -0.5 -0.5 -0.6 n/a n/a -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 1.8 -0.5 n/a -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5Be ppm -1 -1 -1 -1 2 -1 1 -1 -1 -1 -1 -1 1 1 -1 -1 -1 1 1 2 2 1 1 1 2 -1 -1


0111-CAMP 0111-CAMPR 0111-0043 0211-1124 0211-1127 0111-356 0111-4187 0311-3028 0111-341 0111-343 0111-297 0111-329 0111-330 0111-336 0111-4188 0111-4188R 0311-1020ESIF ESIF EVM min EVM min EVM min EVM min EVM min EVM min EVM min EVM min EVM min EVMminQV EVMminQV EVMminQV EVMminQV EVMminQV EVMminQV

590425 590425 567693 624440 618769 597105 607810 651221 595406 595406 596690 591413 591413 591317 607810 607810 6374576626535 6626535 6637769 6648903 6624181 6619995 6641128 6625676 6625292 6625292 6641957 6625608 6625608 6625257 6641128 6641128 6607205

36.59 36.52 45.88 47.97 56.70 64.51 71.72 56.00 54.38 60.78 54.35 60.34 83.07 41.94 65.41 65.17 57.630.016 0.013 0.777 0.987 0.607 0.188 0.370 1.235 0.505 0.339 2.061 0.760 0.369 0.580 0.106 0.106 0.8950.47 0.45 18.76 13.80 12.23 18.54 12.57 17.66 8.42 7.02 12.52 10.63 3.98 15.83 16.43 16.54 11.35

46.74 46.70 9.77 16.19 11.28 3.07 4.01 5.71 20.32 15.92 15.04 11.20 5.95 14.03 4.37 4.40 10.081.400 1.412 0.289 0.357 0.134 0.031 0.058 0.059 0.339 0.156 0.300 0.214 0.079 0.223 0.031 0.031 0.1664.37 4.39 3.65 5.84 4.63 1.16 2.15 3.98 5.79 4.65 3.76 2.87 1.62 3.77 0.74 0.74 6.492.89 2.88 15.94 10.38 9.69 4.61 4.34 1.36 7.29 7.46 6.66 9.96 3.76 18.14 4.34 4.36 10.650.09 0.09 1.27 1.41 1.69 4.78 3.63 0.55 0.65 0.50 2.91 1.99 0.64 0.60 5.16 5.20 1.33

-0.01 0.03 0.82 1.12 0.63 1.57 0.56 7.59 0.19 0.51 0.66 0.43 0.10 1.11 0.99 0.98 0.380.03 0.03 0.13 0.09 0.06 0.11 0.09 0.09 0.07 0.12 0.17 0.08 0.04 0.15 0.02 0.02 0.137.52 7.48 1.69 1.47 2.76 1.60 0.53 4.37 2.14 2.40 1.88 1.39 0.56 2.90 2.45 2.40 0.96

100.10 100.00 98.99 99.61 100.40 100.18 100.01 98.59 100.10 99.86 100.32 99.87 100.18 99.27 100.06 99.94 100.0612 12 95 69 34 19 54 108 165 94 8 70 35 153 21 16 10125 23 124 55 31 39 37 24 20 -20 -20 40 63 38 -20 -20 8027 27 30 50 31 15 12 11 29 29 28 26 19 54 12 12 400.9 0.9 28.6 39.2 26.6 5.2 7.9 28.9 21.4 13.1 44 24 12.5 43.6 2.3 2.4 34

6 6 136 284 196 38 67 214 137 104 399 188 88 231 30 29 212229 272 98 347 370 120 40 241 398 518 48 248 114 619 11 10 108

-5 -5 8 11 9 8 12 37 -5 -5 6 6 -5 13 12 10 8179 207 64 144 96 -30 31 34 91 88 232 74 44 69 -30 -30 1910.3 0.2 22.3 0.4 1.9 0.4 0.6 0.4 0.5 0.3 0.7 0.6 0.3 3.5 1.7 1.2 0.2n/a n/a 1.9 -0.3 0.6 n/a n/a 1.1 n/a n/a n/a n/a n/a n/a n/a n/a 1.3

-0.1 -0.1 -0.1 -0.1 0.2 -0.1 -0.1 -0.1 -0.1 -0.1 0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1-1 -1 9 1 54 -1 -1 1 -1 -1 1 -1 -1 1 -1 -1 -1

4.5 1.3 1.1 0.7 2.3 0.5 -0.5 66.9 -0.5 -0.5 -0.5 -0.5 -0.5 1.2 80.3 85.6 0.8-2 -2 -1 -2 3 92 -2 -2 -2 -2 -2 -2 -2 2 -2 -2 6

n/a n/a 0.278 0.484 1.626 n/a n/a 1.156 n/a n/a n/a n/a n/a n/a n/a n/a 0.4101 0.8 4.4 -0.5 -0.5 0.7 -0.5 11.5 1.1 0.7 -0.5 -0.5 0.9 -0.5 -0.5 -0.5 1.2

-3 -3 -3 -3 -3 -3 -3 -3 -3 4 -3 -3 -3 -3 -3 -3 -3-0.2 -0.2 -0.1 0.3 -0.1 -0.2 -0.2 1.1 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 0.3-0.5 -0.5 -0.3 0.5 0.9 -0.5 -0.5 0.8 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.3

-5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -53 5 9 4 -2 -2 -2 68 9 6 -2 -2 -2 -2 3 -2 -2

n/a n/a -1 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a2 2 16 47 23 59 25 180 5 13 12 12 4 61 32 31 15

0.3 0.3 2.0 10.0 2.5 2.6 13.0 12.7 0.4 0.7 1.1 0.6 0.1 5.8 15.3 14.8 1.420 21 251 213 52 263 157 1110 47 85 166 75 45 430 179 178 7910 10 263 114 190 337 318 92 37 37 118 111 16 296 585 586 121

-0.05 -0.05 0.19 0.41 0.20 0.22 0.22 0.98 0.05 0.07 0.10 -0.05 0.14 0.24 0.29 0.27 0.272 2 20 18 22 17 14 24 11 10 23 14 6 21 19 18 13

0.9 1.2 1.3 2.1 2.4 1.4 1.2 2.3 2.6 1.9 1.6 1.3 0.9 1.7 1.5 1.4 1.5-0.01 -0.01 0.38 0.16 1.12 0.14 0.13 0.78 0.15 0.08 0.40 0.19 0.08 0.03 0.06 0.07 0.14

0.9 0.8 5.4 3.9 9.7 1.6 2.5 7.7 2.4 1.8 5.8 3.0 1.8 1.1 2.3 2.2 2.40.2 0.1 3.3 1.8 1.0 3.3 2.1 4.9 1.0 1.1 4.2 1.8 0.7 1.3 0.3 0.3 1.512 11 120 60 29 122 77 192 34 44 138 66 27 42 16 14 588.4 8.7 20.1 23.0 21.6 8.9 5.5 43.7 14.5 15.0 43.1 18.4 8.0 41.3 3.6 3.6 17.4

0.29 0.29 1.38 0.52 1.18 3.20 1.16 16.2 1.33 0.52 1.61 0.91 0.33 0.34 0.53 0.43 0.653.71 3.89 0.41 0.12 0.77 1.21 0.45 2.77 0.08 0.09 0.22 0.21 0.05 0.16 1.50 1.54 0.182.07 2.20 15.0 5.25 5.31 14.2 4.30 47.3 3.91 4.52 6.43 5.18 1.86 4.09 9.83 10.1 4.753.61 3.86 32.1 11.6 13.1 31.1 9.62 93.8 9.98 10.3 16.9 11.9 4.66 10.3 22.6 23.1 10.50.44 0.44 3.79 1.68 1.95 3.53 1.21 11.1 1.23 1.27 2.28 1.50 0.63 1.50 2.64 2.69 1.481.93 2.09 15.3 7.99 9.04 14.4 5.42 42.1 5.92 5.74 11.5 7.40 3.20 8.02 10.5 10.4 6.980.45 0.47 3.58 2.39 2.67 2.80 1.31 7.65 1.73 1.54 3.62 2.04 0.91 2.84 1.57 1.66 2.03

0.567 0.601 1.34 0.886 0.734 0.840 0.536 2.08 1.06 0.947 1.37 0.786 0.382 1.04 0.633 0.655 0.8620.55 0.57 3.75 2.97 2.97 2.22 1.24 7.20 2.02 1.88 4.93 2.46 1.09 4.35 1.09 1.15 2.480.11 0.11 0.68 0.62 0.60 0.34 0.19 1.17 0.37 0.36 1.07 0.48 0.22 0.93 0.13 0.15 0.530.72 0.74 3.74 3.60 3.39 1.73 1.05 7.04 2.39 2.24 7.39 3.10 1.46 6.32 0.63 0.65 2.860.17 0.19 0.76 0.79 0.71 0.32 0.19 1.45 0.50 0.49 1.66 0.67 0.29 1.46 0.11 0.11 0.600.56 0.60 2.42 2.33 2.05 0.84 0.53 4.46 1.38 1.47 4.85 1.98 0.88 4.20 0.26 0.27 1.93

0.083 0.095 0.383 0.366 0.313 0.116 0.078 0.584 0.216 0.228 0.802 0.316 0.138 0.621 0.032 0.036 0.2750.51 0.60 2.56 2.27 1.93 0.68 0.50 3.41 1.35 1.38 5.01 2.00 0.87 3.78 0.20 0.20 1.72

0.084 0.088 0.379 0.366 0.287 0.103 0.076 0.533 0.216 0.219 0.754 0.293 0.142 0.591 0.029 0.032 0.290-0.5 -0.5 -0.5 -0.5 1.1 2 -0.5 -0.5 -0.5 -0.5 -0.5 1.5 -0.5 1.5 -0.5 -0.5 -0.5

-1 -1 1 -1 1 3 -1 3 -1 -1 1 -1 -1 -1 2 2 -1


Appendix 4 – Geochemistry of Hurwitz Group Rocks UTM Coordinates are for Zone 13 and Based on NAD 83. Note: HAp, Ameto Formation pelite; HApf,o,s, ferruginous pelite, oxide facies, sulphide facies; HWcs, Watterson Formation, calc-silicate rocks; HWm,qv, marble, with quartz veining; Wp, Wollaston Supergroup pelite; n/a, not analysed; negative values are below detection limits.

SAMPLE 0211-6002 0211-6004 0311-1157 0111-114 0111-197 0111-220 0111-220 /R 0111-2186A 0111-2186B 0211-1021 0211-1080 0211-1180 0311-1146 0111-259 0111-275 0211-1003 0211-1045 0211-1046 0211-1050 0211-1076Rock Name HAp HDpc Wp HAfps HAfps HAfpo HAfpo HAfps HAfps HAfpo HAfps HAfps HAfpo HWcs HWcs HWm HWm HWmqv HWmqv HafvUTM E 662746 660820 662833 580935 566523 566481 566481 582077 582077 662678 662709 667570 598172 563855 581491 653688 653598 653598 653688 663034UTM N 6630138 6623307 6547641 6636542 6628728 6626171 6626171 6636721 6636721 6621118 6630728 6617410 6569877 6618665 6621836 6614454 6614313 6614313 6614454 6628866SiO2 % 59.88 52.82 60.63 59.92 59.75 55.07 55.89 57.09 58.81 60.15 67.36 63.21 59.78 56.72 51.05 30.54 17.59 79.78 72.90 75.36TiO2 % 0.677 0.640 0.895 0.488 0.300 0.306 0.303 0.546 0.216 0.689 0.191 0.331 0.021 0.176 0.701 0.036 0.538 0.012 0.010 0.353Al2O3 % 16.60 15.62 17.39 13.25 7.67 6.87 6.78 15.78 6.72 16.95 12.39 7.60 0.26 4.86 17.67 1.06 3.27 0.22 0.22 12.37Fe2O3 % 7.10 7.78 8.22 10.60 13.63 16.07 15.89 9.43 24.94 7.10 8.58 14.90 35.70 1.53 8.06 1.77 2.27 0.90 1.04 1.31MnO % 0.082 0.122 0.061 0.071 0.818 1.309 1.293 0.068 1.149 0.044 0.049 0.497 0.047 0.067 0.052 0.072 0.081 0.017 0.023 0.002MgO % 3.01 8.65 3.20 3.16 5.26 6.69 6.62 2.99 4.31 3.29 1.85 3.95 0.08 13.93 3.11 15.70 17.97 5.47 8.01 2.86CaO % 2.50 6.62 1.38 2.11 6.02 9.31 9.19 1.79 2.99 3.06 0.23 6.32 1.29 18.61 8.62 22.36 25.20 6.53 9.40 0.95Na2O % 2.86 0.59 2.21 0.98 0.98 0.85 0.85 2.14 0.15 2.19 1.49 0.28 0.26 0.64 0.83 -0.01 0.03 -0.01 0.06 4.54K2O % 5.21 3.89 3.19 4.79 3.14 2.78 2.68 4.83 0.33 3.95 2.91 0.87 0.36 2.96 6.81 0.62 1.55 0.12 0.10 1.44P2O5 % 0.16 0.11 0.20 0.12 0.14 0.17 0.17 0.13 0.57 0.14 0.07 1.02 -0.01 0.28 0.12 0.03 0.12 0.04 0.03 0.10LOI % 1.06 3.23 1.65 4.71 2.34 0.61 0.61 5.11 -0.15 1.41 4.56 1.31 0.89 0.45 3.16 27.81 30.77 7.11 7.50 0.88TOTAL % 99.15 100.08 99.02 100.20 100.03 100.03 100.28 99.90 100.04 98.95 99.68 100.29 98.67 100.21 100.17 99.94 99.38 100.20 99.28 100.17Cr ppm 72 96 89 87 33 42 40 66 31 117 14 50 21 13 91 54 80 26 11 63Ni ppm 45 54 50 24 -20 -20 -20 -20 -20 50 -20 30 3 -20 39 -20 28 -20 10 -20Co ppm 15 24 19 11 10 12 13 4 19 15 21 12 2 -1 17 3 4 1 1 3Sc ppm 14.1 14.8 16.7 14 7.7 7.7 8 16 8 18.3 2.4 7.6 0.4 2.9 19.4 0.8 5.3 0.3 0.5 8V ppm 88 94 113 248 38 44 44 243 48 111 22 49 12 26 122 9 34 -5 6 65Cu ppm 34 8 10 67 47 -10 41 28 15 -10 31 105 5 -10 40 100 22 13 10 -10Pb ppm 13 4 15 16 8 8 7 20 -5 -5 7 21 14 13 36 6 -5 -5 31 -5Zn ppm 61 47 70 161 80 72 73 125 145 59 34 123 16 44 99 117 -30 -30 43 -30Bi ppm 7.1 20.3 4.4 0.1 0.6 0.9 0.9 -0.1 0.2 0.2 0.5 0.4 0.3 1.3 0.7 -0.1 -0.1 -0.1 -0.1 -0.1Cd ppm 0.6 1.0 0.3 n/a n/a n/a n/a n/a n/a n/a n/a -0.3 1.9 n/a n/a n/a n/a n/a -0.3 n/aIn ppm -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1Sn ppm 13 12 11 3 2 3 3 4 2 3 3 3 -1 1 2 -1 1 -1 -1 -1W ppm 3.1 1.5 0.5 10.8 -0.5 -0.5 -0.5 3.5 0.7 2.0 1.2 0.6 3.4 -0.5 1.5 0.5 1.2 -0.5 -0.5 1.4Mo ppm -1 8 4 5 -2 -2 -2 8 -2 -2 3 -2 -2 -2 -2 -2 -2 -2 -2 -2S % 0.027 0.004 0.009 n/a n/a n/a n/a n/a n/a n/a n/a 0.311 0.004 n/a n/a n/a n/a n/a -0.001 n/aAs ppm 4.0 2.6 2.5 -5 1.5 -0.5 -5 -5 -5 1.5 1.8 1.7 2.1 1 0.5 3.1 5.1 2.8 2.1 1.5Se ppm -3 -3 -3 n/a -3 -3 n/a n/a n/a -3 -3 -3 -3 -3 -3 -3 -3 -3 -3 -3Sb ppm 0.2 1.1 -0.1 -0.2 -0.2 -0.2 -0.2 0.6 0.3 1.4 -0.1 0.3 0.8 -0.2 -0.2 0.2 1.2 -0.1 -0.1 -0.1Ag ppm 0.4 -0.3 0.3 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.3 0.4 -0.5 -0.5 -0.5 -0.5 -0.5 -0.3 -0.5Ir ppb -5 -5 -5 n/a -5 -5 n/a n/a n/a -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5Au ppb -2 -2 6 n/a -2 -2 n/a n/a n/a -2 -2 16 -2 -2 -2 -2 -2 -2 -2 -2Hg ppm -1 -1 -1 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/aRb ppm 222 184 197 240 136 70 69 232 21 191 148 40 21 123 254 13 48 3 4 46Cs ppm 10.6 5.9 8.2 11.9 1.2 0.7 0.7 11.3 2.2 6.6 3.9 1.6 1.1 5.8 10.7 0.3 1.3 0.1 0.2 1.3Ba ppm 686 3,002 832 1,120 1,480 1,230 1,220 1,140 118 1,330 605 170 20 3,830 795 140 464 1,560 34 64Sr ppm 106 88 150 218 53 67 67 168 108 79 54 27 2 137 351 29 42 45 11 20Tl ppm 2.53 1.53 2.51 1.08 0.60 0.36 0.35 1.27 0.13 0.89 0.53 0.27 -0.05 0.66 1.15 0.05 0.21 -0.05 0.09 0.09Ga ppm 21 21 22 21 12 12 13 25 11 25 22 12 -1 6 25 2 5 -1 -1 16Ge ppm 2.5 2.1 1.9 2.2 4.0 5.1 5.0 2.4 6.0 1.8 1.1 2.5 3.2 1.6 1.9 0.7 0.9 1.0 1.0 1.4Ta ppm 1.38 1.24 1.00 2.71 0.64 0.54 0.55 2.32 1.95 1.33 1.28 0.61 -0.01 0.47 1.15 0.07 0.89 0.05 0.01 0.52Nb ppm 15.4 13.6 15.7 13.3 7.8 6.9 6.9 15.3 8.0 14.8 14.1 7.2 1.3 5.2 12.1 2.7 10.2 1.7 2.4 7.0Hf ppm 5.2 3.9 5.7 4.0 3.8 3.5 3.7 5.4 2.1 3.3 4.2 2.9 0.2 16.8 3.2 0.5 21.1 0.6 0.2 4.7Zr ppm 174 128 201 148 132 129 129 190 77 130 175 95 17 669 105 20 793 27 8 203Y ppm 24.6 28.5 28.7 24.0 25.0 24.0 23.7 35.2 29.3 22.7 12.5 39.1 1.7 14.7 23.6 14.2 35.6 6.4 7.1 11.2Th ppm 17.3 16.7 14.0 17.4 6.90 5.44 5.65 23.9 9.54 17.5 22.7 9.53 0.31 3.91 18.5 1.17 19.0 0.32 0.59 8.53U ppm 3.06 4.83 3.29 6.59 0.67 0.37 0.38 5.31 2.17 4.07 5.20 3.62 0.33 3.16 4.35 0.26 4.76 0.14 0.22 1.18La ppm 54.9 57.0 65.2 39.3 23.3 26.8 27.3 60.5 39.6 54.2 43.8 34.8 1.76 14.8 53.2 5.13 48.4 1.46 1.37 31.9Ce ppm 108 116 130 67.0 51.8 57.5 58.3 104 75.1 111 85.2 72.8 3.06 30.8 108 10.5 95.1 3.48 3.23 73.4Pr ppm 12.0 12.7 14.2 7.97 6.05 6.46 6.55 12.3 7.80 11.1 7.47 7.73 0.35 3.10 11.3 1.14 9.38 0.42 0.45 7.16Nd ppm 43.8 47.0 52.7 28.8 24.1 25.3 25.2 44.1 29.7 38.5 24.0 29.6 1.35 11.9 42.0 4.75 34.7 1.95 2.08 25.7Sm ppm 7.76 8.90 9.10 5.08 4.70 4.44 4.54 7.55 5.37 6.39 3.72 6.32 0.29 2.29 6.95 1.02 6.41 0.49 0.51 4.35Eu ppm 1.38 1.56 1.91 0.976 0.842 0.852 0.845 1.38 1.12 1.21 0.663 1.43 0.060 0.540 1.29 0.248 0.857 0.083 0.131 0.847Gd ppm 6.15 6.96 7.15 3.74 3.92 3.84 3.81 5.47 4.46 5.05 2.23 5.76 0.29 2.03 5.24 1.12 5.14 0.55 0.56 2.81Tb ppm 0.95 1.13 1.13 0.61 0.65 0.60 0.61 0.90 0.78 0.74 0.35 1.04 0.04 0.33 0.82 0.18 0.86 0.09 0.10 0.42Dy ppm 5.02 5.88 5.91 3.84 3.79 3.49 3.49 5.52 4.71 3.99 1.94 5.86 0.27 2.03 4.63 1.08 4.93 0.55 0.60 2.11Ho ppm 0.89 1.05 1.10 0.81 0.80 0.71 0.74 1.13 0.97 0.80 0.38 1.19 0.05 0.44 0.88 0.27 1.10 0.13 0.14 0.41Er ppm 2.80 3.20 3.31 2.30 2.35 2.08 2.09 3.36 2.67 2.46 1.20 3.50 0.14 1.31 2.53 0.82 3.57 0.39 0.39 1.26Tm ppm 0.431 0.497 0.495 0.384 0.369 0.301 0.307 0.533 0.403 0.351 0.179 0.532 0.017 0.226 0.378 0.106 0.571 0.050 0.055 0.178Yb ppm 2.68 3.10 3.11 2.51 2.13 1.75 1.80 3.26 2.23 2.15 1.14 3.12 0.08 1.50 2.34 0.51 3.54 0.26 0.27 1.20Lu ppm 0.378 0.432 0.438 0.391 0.312 0.264 0.266 0.498 0.320 0.307 0.171 0.491 0.011 0.241 0.331 0.066 0.550 0.034 0.037 0.180Br ppm -0.5 -0.5 -0.5 n/a -0.5 -0.5 n/a n/a n/a -0.5 -0.5 -0.5 -0.5 0.9 1.8 1.1 2 3.7 2.6 -0.5Be ppm 3 3 2 3 3 3 3 3 2 4 2 2 -1 2 2 -1 1 -1 -1 4


Appendix 5 – Chemistry of Proterozoic Intrusive Rocks UTM Coordinates are for Zone 13 and Based on NAD 83. Note: Hud G, Hudson granite suite; Hud G(Mo), with molybdenite; Nuel G; Nueltin granite suite; Nuel G(F), fluorite bearing; Lep peg; lepidolite-bearing pegmatite; and n/a, not analysed; negative values are below detection limits.

SAMPLE 0311-5005 0311-5008 0111-2210 0111-2210A 0211-5009 0111-263 0311-3058 0211-1162 0211-1163 0211-1177 0111-2230A 0111-380 0211-1010 0211-1501 0111-5 Rock Name Hud G Hud G Hud G Hud G Hud G (Mo) Hud G Nuel G Nuel G (F) Nuel G (F) Nuel G (F) Nuel G Nuel G Felsite Lep peg Diabase UTM E 602981 605028 567646 567646 620937 562829 607314 666743 666995 667760 589450 586680 654259 623611 557050UTM N 6571838 6564182 6619507 6619507 6610515 6619675 6581147 6601288 6600246 6604219 6613300 6604540 6622208 6644963 6648340SiO2 % 71.64 72.20 76.43 72.07 72.06 64.36 72.06 71.77 68.99 74.73 75.81 74.37 72.62 74.35 47.99TiO2 % 0.333 0.131 0.133 0.176 0.121 0.300 0.222 0.150 0.692 0.095 0.044 0.084 0.196 0.010 0.946Al2O3 % 13.72 14.67 12.66 14.42 14.97 18.34 13.59 13.02 13.86 14.03 13.46 13.71 14.47 14.95 13.88Fe2O3 % 2.09 1.55 1.08 1.40 1.62 1.69 2.18 1.76 4.67 1.18 0.66 1.60 1.59 0.22 13.71MnO % 0.025 0.029 0.017 0.019 0.019 0.014 0.025 0.020 0.081 0.016 0.011 0.015 0.019 0.393 0.208MgO % 0.45 0.56 0.47 0.57 0.68 0.81 0.36 0.19 0.64 0.41 0.11 0.23 0.52 0.03 8.66CaO % 1.02 2.25 1.04 0.81 1.09 1.24 0.81 1.92 2.17 1.17 0.74 0.92 1.25 0.09 10.53Na2O % 3.46 4.20 2.87 3.24 4.35 3.51 3.11 2.30 2.83 4.61 3.75 3.43 5.13 4.84 1.87K2O % 5.29 3.17 5.01 5.76 3.78 9.25 5.87 7.03 5.44 3.63 5.20 5.33 3.63 3.06 0.93P2O5 % 0.08 0.07 0.10 0.09 0.04 0.10 0.06 0.02 0.24 0.04 0.03 0.03 0.07 0.04 0.09LOI % 0.69 0.59 0.58 0.59 1.06 0.54 0.73 0.99 0.36 0.44 0.29 0.49 0.68 1.17 1.56TOTAL % 98.80 99.41 100.40 99.14 99.80 100.16 99.01 99.18 99.97 100.34 100.11 100.22 100.18 99.14 100.38Cr ppm 13 15 -20 -20 26 -5 16 7 -5 11 -20 -5 86 -5 162Ni ppm 4 9 -20 -20 -20 -20 5 3 3 3 -20 -20 -20 2 99Co ppm 2 3 2 3 2 2 2 2 -1 2 -1 1 6 2 63Sc ppm 1.5 6.1 2 4 1.3 2.2 2.9 2.6 9.6 0.3 3 1.2 2.1 0.7 50V ppm 18 17 9 15 10 12 15 -5 26 16 -5 11 18 -5 294Cu ppm 4 4 -10 -10 13 -10 6 10 13 9 -10 -10 50 11 218Pb ppm 36 29 22 29 9 112 45 71 51 20 22 50 7 8 5Zn ppm 67 56 -30 -30 -30 40 54 74 154 85 -30 -30 55 117 115Bi ppm -0.1 0.2 -0.1 -0.1 0.7 0.5 0.9 -0.1 -0.1 -0.1 -0.1 0.4 -0.1 -0.1 0.3Cd ppm 0.5 0.4 n/a n/a n/a n/a 0.5 -0.3 -0.3 -0.3 n/a n/a n/a -0.3 n/aIn ppm -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.4 -0.1Sn ppm -1 2 2 -1 -1 1 -1 4 3 -1 5 -1 -1 187 3W ppm -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 1.6 1.2 -0.5 -0.5 -0.5 -0.5 4.2 -0.5Mo ppm -2 -2 -2 -2 116 -2 -2 2 2 -2 -2 -2 -2 -2 -2S % 0.007 0.002 n/a n/a n/a n/a 0.011 -0.001 -0.001 -0.001 n/a n/a n/a -0.001 n/aAs ppm 2.3 1.2 -5 -5 2.3 -0.5 -0.5 -0.5 1.5 1.7 -5 -0.5 1.4 -0.5 -5Se ppm -3 -3 n/a n/a -3 -3 -3 -3 -3 -3 n/a -3 -3 -3 n/aSb ppm -0.1 -0.1 -0.2 -0.2 -0.1 -0.2 0.4 0.1 -0.1 -0.1 0.2 -0.2 -0.1 -0.1 -0.2Ag ppm 1.0 0.3 -0.5 -0.5 -0.5 -0.5 0.6 -0.3 -0.3 0.6 -0.5 -0.5 -0.5 -0.3 -0.5Ir ppb -5 -5 n/a n/a -5 -5 -5 -5 -5 -5 n/a -5 -5 -5 n/aAu ppb -2 -2 n/a n/a -2 -3 -2 -2 -2 -2 n/a -2 -2 -2 n/aRb ppm 143 122 189 224 108 306 261 434 273 124 300 220 117 3,380 27Cs ppm 2.0 3.9 3.4 3.8 5.1 1.5 13.0 3.0 3.2 2.1 8.1 4.7 1.2 530 2.0Ba ppm 773 482 833 991 547 2,090 552 345 1157 804 227 852 582 13 144Sr ppm 238 496 206 228 232 317 139 109 200 357 78 240 319 7 174Tl ppm 1.16 0.73 0.92 1.13 0.70 1.71 2.26 1.55 1.36 0.68 1.58 1.30 0.44 24.9 0.12Ga ppm 15 17 18 21 14 24 16 19 25 17 24 18 22 68 18Ge ppm 0.8 0.8 0.8 0.9 0.9 0.9 0.9 1.2 1.5 0.8 1.3 1.0 -0.5 7.0 1.6Li ppm n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 3,470.0 n/aTa ppm 0.43 0.54 1.06 1.20 0.07 0.24 0.51 0.56 1.88 0.42 5.85 0.73 1.25 74.1 1.79Nb ppm 4.1 4.2 4.4 6.3 1.9 5.7 6.5 10.5 26.9 4.1 20.4 4.2 12.9 32.2 4.9Hf ppm 7.1 2.6 1.8 6.5 1.9 9.2 5.8 1.8 14.2 1.9 3.1 5.0 3.2 4.6 2.0Zr ppm 278 90 65 229 76 353 208 40 569 56 67 148 124 23 73Y ppm 5.6 8.3 6.5 9.7 2.2 8.1 6.7 19.5 53.5 3.8 23.3 7.8 11.5 1.0 21.1Th ppm 70.1 22.3 13.0 75.7 13.4 172 64.5 46.6 51.0 15.8 22.5 44.9 13.2 2.09 0.82U ppm 10.5 5.73 1.23 4.60 1.40 1.61 9.79 5.61 4.40 1.04 7.08 18.4 5.64 1.23 0.18La ppm 95.9 9.57 22.8 107 18.7 296 72.4 7.35 134 16.3 7.48 21.2 28.3 0.28 7.10Ce ppm 185 19.0 41.0 192 35.3 544 149 12.4 281 25.1 14.5 57.0 54.8 0.79 16.3Pr ppm 17.9 2.33 3.93 18.2 3.03 50.9 14.5 1.51 31.4 2.75 1.81 4.66 5.13 0.09 2.11Nd ppm 58.8 9.13 13.3 59.6 9.41 163 47.7 5.17 110 8.86 6.96 16.0 17.8 0.34 9.77Sm ppm 7.35 2.23 2.17 7.74 1.38 16.5 6.59 0.96 17.6 1.17 1.99 3.06 3.07 0.10 2.79Eu ppm 0.698 0.479 0.842 1.22 0.315 1.62 0.546 0.664 2.12 0.312 0.248 0.450 0.642 0.022 0.899Gd ppm 3.66 1.95 1.30 3.12 0.74 9.21 3.88 0.94 10.8 0.64 2.10 2.02 2.18 0.10 3.18Tb ppm 0.27 0.29 0.22 0.46 0.09 0.59 0.33 0.18 1.61 0.07 0.41 0.30 0.34 0.02 0.60Dy ppm 1.05 1.48 1.19 2.04 0.40 2.08 1.25 1.15 8.82 0.39 2.81 1.38 1.79 0.11 3.84Ho ppm 0.17 0.27 0.23 0.31 0.07 0.28 0.20 0.28 1.68 0.08 0.64 0.25 0.36 0.02 0.83Er ppm 0.53 0.81 0.61 0.84 0.21 0.68 0.62 1.01 4.98 0.23 1.90 0.71 1.15 0.05 2.13Tm ppm 0.080 0.111 0.089 0.098 0.028 0.071 0.090 0.184 0.794 0.033 0.321 0.107 0.175 0.006 0.362Yb ppm 0.56 0.70 0.54 0.63 0.19 0.38 0.62 1.36 4.76 0.23 2.22 0.74 1.15 0.03 2.15Lu ppm 0.094 0.111 0.069 0.087 0.033 0.048 0.105 0.251 0.742 0.048 0.360 0.125 0.167 0.004 0.332F % 0.02 n/a n/a n/a n/a n/a 0.03 0.16 0.31 0.11 n/a n/a n/a n/a n/aBr ppm -0.5 -0.5 n/a n/a 3.7 -0.5 -0.5 -0.5 -0.5 -0.5 n/a 1 -0.5 -0.5 n/aBe ppm 1 3 2 2 4 1 2 3 4 1 4 1 3 218 -1


Appendix 6 – Iron Sulphide– and Quartz Vein–bearing Samples from the Phelps Lake Area UTM Coordinates are for Zone 13 and Based on NAD 83. Note: ESIFs, Ennadai Group sulphide facies iron formation; EVFr, Ennadai felsic volcanic (rhyolite); EVM, Ennadai mafic volcanic; bldr, boulder, po, pyrrhotite; py, pyrite; qtzite, quartzite; QV, quartz veins; negative values are below detection limits.

Sample ID 0111-36 0111-66 0111-97 0111-98 0111-110 0111-125 0111-149A 0111-149B 0111-150 0111-4032 0111-4098 0111-4098RRock Name ESIFs bldr EVM,py,QV EVM,py,QV Py qtzite bldr EVFr,py-po ESIFs bldr ESIFs EVM,py,QV ESIFs bldr EVM,py,QV EVM,py,bldr EVM,py,bldrUTM E 580910 562753 562498 562498 578929 582604 578030 577988 597477 577801 573436 573436UTM N 6648818 6635405 6634737 6634737 6637657 6630215 6646992 6647081 6628684 6647678 6619575 6619575Cr ppm 20 48 38 68 143 34 11 35 70 20 19 18Ni ppm -20 -37 -37 -26 138 -30 112 -30 187 -20 102 86Co ppm 34 16 33 13 17 9 80 41 163 7 45 47Sc ppm 2.1 32.1 48.1 11.3 12.4 16.4 1.4 27.1 11.7 1.4 3.1 3.2Cu ppm 418 433 306 57 34 143 883 314 312 122 256 n/aPb ppm -2 7 -2 5 -2 5 5 7 -2 -2 30 n/aZn ppm 826 247 176 121 -50 118 292 104 71 98 1160 1180Sn % -0.01 -0.01 -0.01 -0.01 -0.01 -0.01 -0.01 -0.01 -0.01 -0.01 -0.01 -0.01W ppm -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 3 3Mo ppm -1 4 -1 2 -1 2 -1 -1 -1 -1 2 -1As ppm 1.3 -0.5 -0.5 -0.5 2.2 -0.5 2.3 1 -0.5 7.4 0.9 1Se ppm -3 -3 -3 -3 -3 -3 4 -3 -3 -3 -3 -3Sb ppm -0.1 0.2 -0.1 -0.1 -0.1 0.2 0.2 0.3 -0.1 -0.1 -0.1 0.1Ag ppm -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5Ir ppb -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5Au ppb 5 -2 3 -2 9 3 39 28 9 533 13 12Hg ppm -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1Rb ppm -15 32 79 102 73 45 -15 42 25 -15 28 26Cs ppm -1 4 2 3 1 5 -1 3 1 -1 5 5Ba ppm -50 -50 250 600 500 220 -50 210 -50 -50 320 330Sr % -0.05 -0.05 -0.05 -0.05 -0.05 -0.05 -0.05 -0.05 -0.05 -0.05 -0.05 -0.05Ta ppm -0.5 3.8 -0.5 -0.5 -0.5 -0.5 -0.5 0.8 -0.5 -0.5 -0.5 -0.5Hf ppm -1 2 2 5 3 2 -1 2 -1 -1 -1 -1Th ppm 0.8 2.5 -0.2 12.7 6.1 4.6 0.8 0.7 -0.2 0.3 0.8 0.8U ppm -0.5 1 -0.5 1.2 1.2 1.5 -0.5 -0.5 0.8 -0.5 -0.5 -0.5La ppm 2.9 5.9 4.9 39.1 23.2 17 3.2 6.2 3 1.2 2.8 3Ce ppm 6 12 12 66 42 37 7 14 4 -3 5 5Nd ppm -5 -5 7 26 11 9 -5 7 -5 -5 -5 -5Sm ppm 0.7 2.9 2.6 4.7 3.4 2.7 0.7 3.2 0.8 0.3 0.5 0.6Eu ppm 0.3 0.8 0.9 1.2 1.1 1.1 0.4 1 0.6 -0.2 0.4 0.3Tb ppm -0.5 0.5 -0.5 -0.5 -0.5 0.6 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5Yb ppm 1 2.1 3.1 1.9 1.2 11.5 0.5 3.2 1.1 -0.2 0.7 0.7Lu ppm 0.16 0.31 0.47 0.3 0.19 1.73 0.08 0.48 0.17 -0.05 0.11 0.11Br ppm 0.9 -0.5 -0.5 -0.5 -0.5 1.7 -0.5 -0.5 -0.5 1.8 -0.5 -0.5Fe % 12.2 18.5 12.7 3.59 3.8 11.5 14.3 8.19 22.2 4.14 9.22 9.14Ca % 3 2 7 -1 -1 4 5 4 4 -1 -1 -1Na % 0.11 1.22 1.19 0.85 2.69 0.9 0.08 0.82 0.34 0.06 0.05 0.05

Overview of the Geochemistry of Archean and Proterozoic ... · The Nueltin granites have a tendency...

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Transcript of Overview of the Geochemistry of Archean and Proterozoic ... · The Nueltin granites have a tendency...