PIECE OF GOLD ORE

8/12/2019 PIECE OF GOLD ORE

1/40

PIECE OF GOLD ORE(click image to zoom)

Icholakov| Dreamstime.comID: 2!""#$ Le%el: 2

&ize: 2'2 * ($.$ +P)Do,-loas: / 0 1ie,s: //2

File info: (I-str3ctio-s 4or com5i-g)

Description:*ackgro3- a- te6t3re o4 golmi-i-g ore

Keywords:

7ackgro3-7roke-c83-kcr9staligiggere6ca%atee6ca%atio-e6otice65loratio-e6tract4las8

geologicalgeolog9glittergolgole-golmi-erill3stratio-imitateimitatio-i-3striali-3str9metalmetallicmi-emi-ermi-eralmi-i-g-at3reora-geore5iece5recio3srarera,re-erreser%eric8rockro3g8

r3s8sim3latesim3latio-s3r4acete6t3re3-ergro3-,ealt89ello,

Dominant Colors:

Categories: ;7stract< *ackgro3-s ;7stract< =e6t3res

>at3re< Geologic a- mi-eral

Size Resoltion !rice "icense

E6trasmall$/"6$/" 5i6els.?@ 6 .?@ A?2 5i

! creits(as lo, as B".2")

Ro9alt9 Free

&mall/""6/"" 5i6els##.#@ 6 ##.#@ A?2 5i

$ creits(as lo, as B".2")

Ro9alt9 Free

+ei3m2#""62#"" 5i6els?@ 6 ?@ A!"" 5i

creits(as lo, as B".2")

Ro9alt9 Free

Similar images+ore images

Registera- o,-loa t8is image 4or as lo, as as #$%2$4or 8ig8resol3tio-.

Registere 3sers ca- orer 5ri-ts a- o,-loa 4ree images

&ot a mem'er yet(

)lready have an accont(
http://www.dreamstime.com/searchkwy_piece-of-gold-orehttp://www.dreamstime.com/Icholakov_infohttp://www.dreamstime.com/Icholakov_infohttp://mm_openbrwindow%28%27comp.php/?imageid=2530014%27,%27comp_popup%27,%27width=600,height=310,resizable,scrollbars=yes%27);http://www.dreamstime.com/searchkwy_backgroundhttp://www.dreamstime.com/searchkwy_brokenhttp://www.dreamstime.com/searchkwy_chunkhttp://www.dreamstime.com/searchkwy_chunkhttp://www.dreamstime.com/searchkwy_crystalhttp://www.dreamstime.com/searchkwy_crystalhttp://www.dreamstime.com/searchkwy_crystalhttp://www.dreamstime.com/searchkwy_dighttp://www.dreamstime.com/searchkwy_dighttp://www.dreamstime.com/searchkwy_diggerhttp://www.dreamstime.com/searchkwy_excavatehttp://www.dreamstime.com/searchkwy_excavationhttp://www.dreamstime.com/searchkwy_exotichttp://www.dreamstime.com/searchkwy_exotichttp://www.dreamstime.com/searchkwy_exotichttp://www.dreamstime.com/searchkwy_explorationhttp://www.dreamstime.com/searchkwy_explorationhttp://www.dreamstime.com/searchkwy_extracthttp://www.dreamstime.com/searchkwy_flashhttp://www.dreamstime.com/searchkwy_flashhttp://www.dreamstime.com/searchkwy_geologicalhttp://www.dreamstime.com/searchkwy_geologicalhttp://www.dreamstime.com/searchkwy_geologyhttp://www.dreamstime.com/searchkwy_glitterhttp://www.dreamstime.com/searchkwy_glitterhttp://www.dreamstime.com/searchkwy_glitterhttp://www.dreamstime.com/searchkwy_goldhttp://www.dreamstime.com/searchkwy_goldenhttp://www.dreamstime.com/searchkwy_goldenhttp://www.dreamstime.com/searchkwy_goldenhttp://www.dreamstime.com/searchkwy_goldminerhttp://www.dreamstime.com/searchkwy_illustrationhttp://www.dreamstime.com/searchkwy_imitatehttp://www.dreamstime.com/searchkwy_imitatehttp://www.dreamstime.com/searchkwy_imitationhttp://www.dreamstime.com/searchkwy_industrialhttp://www.dreamstime.com/searchkwy_industrialhttp://www.dreamstime.com/searchkwy_industryhttp://www.dreamstime.com/searchkwy_metalhttp://www.dreamstime.com/searchkwy_metalhttp://www.dreamstime.com/searchkwy_metallichttp://www.dreamstime.com/searchkwy_minehttp://www.dreamstime.com/searchkwy_minehttp://www.dreamstime.com/searchkwy_minehttp://www.dreamstime.com/searchkwy_minerhttp://www.dreamstime.com/searchkwy_mineralhttp://www.dreamstime.com/searchkwy_mineralhttp://www.dreamstime.com/searchkwy_mininghttp://www.dreamstime.com/searchkwy_naturehttp://www.dreamstime.com/searchkwy_naturehttp://www.dreamstime.com/searchkwy_orangehttp://www.dreamstime.com/searchkwy_orehttp://www.dreamstime.com/searchkwy_orehttp://www.dreamstime.com/searchkwy_piecehttp://www.dreamstime.com/searchkwy_precioushttp://www.dreamstime.com/searchkwy_rarehttp://www.dreamstime.com/searchkwy_rawhttp://www.dreamstime.com/searchkwy_renderhttp://www.dreamstime.com/searchkwy_renderhttp://www.dreamstime.com/searchkwy_reservehttp://www.dreamstime.com/searchkwy_reservehttp://www.dreamstime.com/searchkwy_richhttp://www.dreamstime.com/searchkwy_rockhttp://www.dreamstime.com/searchkwy_rockhttp://www.dreamstime.com/searchkwy_roughhttp://www.dreamstime.com/searchkwy_rushhttp://www.dreamstime.com/searchkwy_simulatedhttp://www.dreamstime.com/searchkwy_simulationhttp://www.dreamstime.com/searchkwy_surfacehttp://www.dreamstime.com/searchkwy_surfacehttp://www.dreamstime.com/searchkwy_texturehttp://www.dreamstime.com/searchkwy_texturehttp://www.dreamstime.com/searchkwy_undergroundhttp://www.dreamstime.com/searchkwy_wealthhttp://www.dreamstime.com/searchkwy_yellowhttp://www.dreamstime.com/abstract-cat38http://www.dreamstime.com/backgrounds-cat112http://www.dreamstime.com/abstract-cat38http://www.dreamstime.com/textures-cat141http://www.dreamstime.com/nature-cat8http://www.dreamstime.com/geologic-and-mineral-cat143http://mm_openbrwindow%28%27resolutions.php/?w=480&h=480%27,%27computesize%27,%27width=360,height=315,resizable,scrollbars=yes%27);http://www.dreamstime.com/piece-of-gold-ore-image2530014#%23http://mm_openbrwindow%28%27resolutions.php/?w=800&h=800%27,%27computesize%27,%27width=360,height=315,resizable,scrollbars=yes%27);http://www.dreamstime.com/piece-of-gold-ore-image2530014#%23http://mm_openbrwindow%28%27resolutions.php/?w=2100&h=2100%27,%27computesize%27,%27width=360,height=315,resizable,scrollbars=yes%27);http://www.dreamstime.com/piece-of-gold-ore-image2530014#%23http://www.dreamstime.com/search.php?srh_field=Piece+of+gold+ore&s_sm=anyhttps://www.dreamstime.com/registerhttp://www.dreamstime.com/free-photoshttp://www.dreamstime.com/royalty-free-stock-image-shiny-gold-image2635356http://www.dreamstime.com/stock-images-gold-colored-rock-image2627824http://www.dreamstime.com/royalty-free-stock-images-gold-surface-texture-image2594419http://www.dreamstime.com/stock-images-gold-ore-water-mills-image2178714http://www.dreamstime.com/search.php?srh_field=Piece+of+gold+ore&s_sm=anyhttps://www.dreamstime.com/registerhttps://www.dreamstime.com/registerhttps://www.dreamstime.com/registerhttps://www.dreamstime.com/registerhttps://www.mcafeesecure.com/RatingVerify?ref=dreamstime.comhttps://www.bbb.org/online/consumer/cks.aspx?id=1090715141910http://www.dreamstime.com/login.phphttps://www.dreamstime.com/registerhttp://www.dreamstime.com/colorsearch_C08000_10http://www.dreamstime.com/colorsearch_404000_15http://www.dreamstime.com/colorsearch_804000_55http://www.dreamstime.com/searchkwy_piece-of-gold-orehttp://www.dreamstime.com/Icholakov_infohttp://mm_openbrwindow%28%27comp.php/?imageid=2530014%27,%27comp_popup%27,%27width=600,height=310,resizable,scrollbars=yes%27);http://www.dreamstime.com/searchkwy_backgroundhttp://www.dreamstime.com/searchkwy_brokenhttp://www.dreamstime.com/searchkwy_chunkhttp://www.dreamstime.com/searchkwy_crystalhttp://www.dreamstime.com/searchkwy_dighttp://www.dreamstime.com/searchkwy_diggerhttp://www.dreamstime.com/searchkwy_excavatehttp://www.dreamstime.com/searchkwy_excavationhttp://www.dreamstime.com/searchkwy_exotichttp://www.dreamstime.com/searchkwy_explorationhttp://www.dreamstime.com/searchkwy_extracthttp://www.dreamstime.com/searchkwy_flashhttp://www.dreamstime.com/searchkwy_geologicalhttp://www.dreamstime.com/searchkwy_geologyhttp://www.dreamstime.com/searchkwy_glitterhttp://www.dreamstime.com/searchkwy_goldhttp://www.dreamstime.com/searchkwy_goldenhttp://www.dreamstime.com/searchkwy_goldminerhttp://www.dreamstime.com/searchkwy_illustrationhttp://www.dreamstime.com/searchkwy_imitatehttp://www.dreamstime.com/searchkwy_imitationhttp://www.dreamstime.com/searchkwy_industrialhttp://www.dreamstime.com/searchkwy_industryhttp://www.dreamstime.com/searchkwy_metalhttp://www.dreamstime.com/searchkwy_metallichttp://www.dreamstime.com/searchkwy_minehttp://www.dreamstime.com/searchkwy_minerhttp://www.dreamstime.com/searchkwy_mineralhttp://www.dreamstime.com/searchkwy_mininghttp://www.dreamstime.com/searchkwy_naturehttp://www.dreamstime.com/searchkwy_orangehttp://www.dreamstime.com/searchkwy_orehttp://www.dreamstime.com/searchkwy_piecehttp://www.dreamstime.com/searchkwy_precioushttp://www.dreamstime.com/searchkwy_rarehttp://www.dreamstime.com/searchkwy_rawhttp://www.dreamstime.com/searchkwy_renderhttp://www.dreamstime.com/searchkwy_reservehttp://www.dreamstime.com/searchkwy_richhttp://www.dreamstime.com/searchkwy_rockhttp://www.dreamstime.com/searchkwy_roughhttp://www.dreamstime.com/searchkwy_rushhttp://www.dreamstime.com/searchkwy_simulatedhttp://www.dreamstime.com/searchkwy_simulationhttp://www.dreamstime.com/searchkwy_surfacehttp://www.dreamstime.com/searchkwy_texturehttp://www.dreamstime.com/searchkwy_undergroundhttp://www.dreamstime.com/searchkwy_wealthhttp://www.dreamstime.com/searchkwy_yellowhttp://www.dreamstime.com/abstract-cat38http://www.dreamstime.com/backgrounds-cat112http://www.dreamstime.com/abstract-cat38http://www.dreamstime.com/textures-cat141http://www.dreamstime.com/nature-cat8http://www.dreamstime.com/geologic-and-mineral-cat143https://www.dreamstime.com/registerhttp://www.dreamstime.com/free-photoshttp://mm_openbrwindow%28%27resolutions.php/?w=480&h=480%27,%27computesize%27,%27width=360,height=315,resizable,scrollbars=yes%27);http://www.dreamstime.com/piece-of-gold-ore-image2530014#%23http://mm_openbrwindow%28%27resolutions.php/?w=800&h=800%27,%27computesize%27,%27width=360,height=315,resizable,scrollbars=yes%27);http://www.dreamstime.com/piece-of-gold-ore-image2530014#%23http://mm_openbrwindow%28%27resolutions.php/?w=2100&h=2100%27,%27computesize%27,%27width=360,height=315,resizable,scrollbars=yes%27);http://www.dreamstime.com/piece-of-gold-ore-image2530014#%23http://www.dreamstime.com/search.php?srh_field=Piece+of+gold+ore&s_sm=any


2/40

*ore images from Icholakov+s portfolio+ore images
http://www.dreamstime.com/Icholakov_more-latest-adition_pg1http://www.dreamstime.com/stock-photos-map-of-australia-image11548763http://www.dreamstime.com/stock-image-fast-jetfighter-image11548751http://www.dreamstime.com/stock-image-military-jet-image11548771http://www.dreamstime.com/royalty-free-stock-photos-light-propeller-airplane-image11548778http://www.dreamstime.com/royalty-free-stock-photo-private-jet-image11472185http://www.dreamstime.com/royalty-free-stock-photography-helicopter-departing-image11503747http://www.dreamstime.com/royalty-free-stock-photography-wild-wolf-image11590177http://www.dreamstime.com/Icholakov_more-latest-adition_pg1http://www.dreamstime.com/stock-photos-golden-colored-ore-chunks-image2658423http://www.dreamstime.com/royalty-free-stock-photo-glittering-gold-image2648085http://www.dreamstime.com/stock-images-gold-colored-surface-image2640854http://www.dreamstime.com/Icholakov_more-latest-adition_pg1


3/40

3icksearc8 : enter keyword or file ID

5loa image| ;7o3t s| F;|Co-tact s| =erms o4 3se| ;PI 0 Re4erral 5rogram |&ite ma5|Pri%ac9 5olic9&355ort 58o-e: #.#.??#.##' Click 8ere to co-tact 3s

Co59rig8t 2"""2"" Dreamstime. ;ll rig8ts reser%e.Dreamstime is a mem7er o4 P;C;a-CEPIC.

,estern Region -old Deposits

Proect stat3s is com5lete. Please c8eck t8e project list4or c3rre-tl9 acti%e 5roects

Staff

Tasks

!ro.ect smmary:

=8e Great *asi- is o-e o4 t8e ,orls great metalloge-ic 5ro%i-ces a- a7o3t ##H o4t8e total ,orl 5ro3ctio- o4 gol (a55ro6imatel9 ?$H o4 t8e -ite &tates

5ro3ctio-) is 5ro3ce a--3all9 4rom t8is regio-' as ,ell as aitio-al sil%er a-co55er. I-cl3e ,it8i- t8is regio- are some o4 t8e largest ;3 e5osits i- t8e ,orl,it8 a reso3rce 5ote-tial t8at e6cees !'2"" metric to--es (#""'"""'""" o3-ces) o4gol. =8e im5act o4 t8ese mi-es o- local eco-omies' o- t8e -atio-s eco-omics3stai-a7ilit9' a- o- o3r -atio-al 7ala-ce o4 trae are 5ro4o3-' a- ,ill co-ti-3e to7e so ,ell i-to t8e 2#st ce-t3r9. =8is 5roect 4oc3ses o- critical 3estio-s regari-gt8e ge-esis o4 5recio3smetal e5osits i- t8is regio- i- orer to e%elo5 stateo4t8e

art mi-eral a- geoe-%iro-me-tal moels 3se i- cr3cial la-3se 5la--i-g ecisio-sa44ecti-g 4eeral la-s i- t8e ,est a- i- esig-i-g e65loratio- strategies 79 t8emi-i-g i-3str9. =8is 5roect also is t8e cor-ersto-e o4 t8e &G&s 5artici5atio- i- aco-sorti3m ,it8 acaemia (CREG at +acka9 &c8ool o4 +i-es' Re-o' >1)' t8e mi-i-gi-3str9' a- t8e >e%aa *3rea3 o4 +i-es a- Geolog9 (>*+G).
http://www.dreamstime.com/uploadfilehttp://www.dreamstime.com/abouthttp://www.dreamstime.com/faqhttp://www.dreamstime.com/contacthttp://www.dreamstime.com/contacthttp://www.dreamstime.com/termshttp://www.dreamstime.com/termshttp://www.dreamstime.com/referral_program.phphttp://www.dreamstime.com/sitemaphttp://www.dreamstime.com/sitemaphttp://www.dreamstime.com/privacyhttp://www.dreamstime.com/privacyhttp://www.dreamstime.com/contacthttp://www.pacaoffice.org/http://www.cepic.org/http://www.cepic.org/http://minerals.usgs.gov/west/projectlisting.htmhttp://minerals.usgs.gov/west/projects/nngdmem.htmhttp://minerals.usgs.gov/west/projects/nngddel.htmhttps://www.mcafeesecure.com/RatingVerify?ref=dreamstime.comhttps://www.bbb.org/online/consumer/cks.aspx?id=1090715141910http://www.dreamstime.com/index.phphttp://www.dreamstime.com/uploadfilehttp://www.dreamstime.com/abouthttp://www.dreamstime.com/faqhttp://www.dreamstime.com/contacthttp://www.dreamstime.com/termshttp://www.dreamstime.com/referral_program.phphttp://www.dreamstime.com/sitemaphttp://www.dreamstime.com/privacyhttp://www.dreamstime.com/contacthttp://www.pacaoffice.org/http://www.cepic.org/http://minerals.usgs.gov/west/projectlisting.htmhttp://minerals.usgs.gov/west/projects/nngdmem.htmhttp://minerals.usgs.gov/west/projects/nngddel.htm


4/40

Fig3re: Gol ore 4rom t8e Oli-g8o3se e5it8ermal e5osit' >e%aa.

=8is 5roect 4oc3ses researc8 e44orts o- 43-ame-tal 3estio-s still seeki-g resol3tio-regari-g t8e ge-esis o4 golsli%er e5osits i- t8e Great *asi-. =8ese e5ositsi-cl3e: (#) ,orlclass seime-tar9 rock8oste golsil%er e5osits' s3c8 as t8ose4o3- alo-g t8e Carli- tre-J (2) 5l3to-relate gol e5osits t8at are 5eri58eral to5or589r9 co55ergol e5ositsJ a- (!) 8ots5ri-g golsil%er e5osits t8at are t8es8allo,est e5osits i- t8e regio-. ;itio-al reso3rces 8a%e 7ee- recog-ize i- ($)

seime-tar9 e68alati%e e5osits' ,8ic8 locall9 reac8 eco-omic ore graes a- i-some cases are 5rec3rsor a3ri4ero3s co-ce-tratio-s 35o- ,8ic8 9o3-ger89rot8ermal s9stems are s35er5ose. =8e t8rea t8at ties toget8er t8e tasks is t8e

k-o,- or 5ote-tial geologic li-kages 7et,ee- e5osit t95es. =8e m3ltiisci5li-ar9scie-ti4ic i-%estigatio-s 3-ertake- 8erei- i- t8ese maor golsil%er e-%iro-me-ts,ill res3lt i- a com5re8e-si%e o%er%ie, t8at t8e- ,ill 7e li-ke i-to a s9-o5tic maortreatise 79 all 5artici5a-ts oc3me-ti-g cr3stal li4e c9cles o4 gol i- t8e -ort8er-

Great *asi-. =8is aim is accom5lis8e t8ro3g8 4i%e i-tegrate tasks:

=ask #: Cr3stal str3ct3re a- t8e s5atial istri73tio- o4 ore e5osits =ask 2: Frame,ork o4 Carli-t95e gol e5osits =ask !: Fl3i e%ol3tio- a- age o4 Carli-t95e gol e5osits =ask $: Pl3to-relate gol e5osits


5/40

=ask Kots5ri-g gol e5osits

/ask 0: Crstal Strctre and the Spatial Distri'tion of 1reDeposits /ien -rach3 task leader3 tien4sgs%gov5

=8e li-ear arra9s o4 gol e5osits i- -ort8er- >e%aa s3ggest 43-ame-tal ee5

cr3stal a- tecto-ic co-trols o- t8eir e%elo5me-t. =8is task seeks to co-strai- a-9s3c8 co-trols t8ro3g8 i-tegrate geo589sical a- raioge-ic isoto5ic i-%estigatio-st8at 5ro7e t8e cr3stal str3ct3re o4 -ort8er- >e%aa' es5eciall9 i- t8e %ici-it9 o4 t8eCarli- a- *attle +o3-tai-E3reka tre-s. Geo589sical i-%estigatio-s are i-tegrati-g

gra%it9' mag-etic' mag-etotell3ric (+=)' a- seismicre4lectio- ata to moel t8e589sical as5ects o4 t8e ee5 cr3st t8at are relate to maor str3ct3res' cr3stalcom5ositio-' a- 4l3i migratio-. Raioge-ic isoto5ic ma55i-g 3si-g i-itial P7 a- &risoto5ic com5ositio-s o4 4els5ars i- rocks 5ro%ies i-e5e-e-t i-4ormatio- a7o3t%ariatio-s i- cr3stal com5ositio- t8ro3g8 time t8at ma9 7e relate to t8e cr3stalstr3ct3re. I-tegratio- o4 t8ese i%erse st3ies' com7i-e ,it8 t8e res3lts 4rom t8eot8er tasks' ,ill 3ltimatel9 5ro%ie a 7etter 3-ersta-i-g o4 t8e tecto-ic e%ol3tio- o4

t8e area a- t8e role o4 cr3stal str3ct3re i- co-trolli-g 4l3i migratio-' so3rce o4 ore'a- t8e s5atial istri73tio- o4 mi-eral e5osits at t8e s3r4ace.


6/40

Fig3re: &eime-tar9rock 8oste gol e5osits i- >e%aa.

/ask 2: Framework of Carlin6type gold deposits /ed /heodore3

task leader3 theodore4sgs%gov5


7/40

&eime-tar9rock 8oste (Carli-) e5osits are t8e maor gol e5osits i- -ort8er->e%aa. C8aracterizatio- o4 t8e ra-ge o4 geologic e-%iro-me-ts o4 t8e e5osits' t8eirrelatio-s8i5 to str3ct3re a- stratigra589' t8eir ages' a- metal so3rces are criticalto e%elo5i-g a moel 4or t8e e5osits. &t3ies ,ill oc3me-t im5act o4 Paleozoic'+esozoic' a- =ertiar9 stratigra589 a- str3ct3res o- Carli-t95e e5osits. ;itio-al

st3ies 4oc3s o- t8e role' i4 a-9' o4 s9-ge-etic (see6) gol occ3rre-ces i- De%o-ia-rocks i- t8e Carli- tre-. I-tegrate i-%estigatio-s ,ill eli-eate geologic 58e-ome-a

im5orta-t to Carli-t95e s9stems' t8eir relatio-s8i5 to regio-al geologic e%e-ts' t8erelatio-s8i5 i4 a-9 to tecto-omagmatic s9stems' metal so3rces 4or t8e e5osits' a-relatio- o4 e5osits to t8e tecto-ic e%ol3tio- o4 t8e regio-.

&5eci4ic s37tasks:

#. *al +o3-tai-;lligator Rige &37task: =o etermi-e roles o4 Eoce-ee4ormatio- a- 3rassic 5l3to-ism o- gol istri73tio- i- t8e so3t8er-

e6te-sio- o4 t8e Carli- tre- i- t8e *al +o3-tai-;lligator Rige mi-i-g areas.2. &tr3ct3ral &37task: =o oc3me-t a- i-ter5ret str3ct3ral 4rame,ork a-

89rot8ermal ore4l3i co-3it 8istor9 a- geometr9 4or Carli-t95e gole5osits i- t8e Carli- a- I-e5e-e-ce +i-i-g Districts.

!. >ort8er- Carli- =re- &37task: =o etermi-e (#) str3ct3ral 8istor9 o4 t8e

5rese-tl9 k-o,- -ort8er- termi-3s o4 t8e Carli- =re- a- relatio- o4 geologicstr3ct3res to istri73tio- o4 k-o,- ore7oies' as ,ell as (2) 7aseli-egeoc8emical co-ce-tratio-s a- istri73tio-s i- areas 3-ist3r7e 79 5re%io3smi-i-g acti%ities.

$. Eoce-e tecto-ic 8istor9: (#) =o reco-str3ct a- Eoce-e cr3stal sectio- i- t8eElkoCarli- area 3si-g t8e R379 +o3-tai-s as a g3ie to t8e ee5 cr3st 3ri-gt8e time o4 Carli- mi-eralizatio-J (2) to com5are rates' mag-it3es' a- st9les

o4 Eoce-e%ers3s+ioce-e e6te-sio-.


8/40

Fig3re: Golstrike (Post*etze) +i-e' Carli- =re-' >e%aa' t8e largest Carli-t95ee5osit i- t8e ,orl' co-tai-i-g more t8a- !'"""'""" o3-ces gol.

/ask 7: Flid evoltion and age of Carlin6type gold deposits )l8ofstra3 task leader3 ahofstra4sgs%gov5

-o,i-g t8e so3rce a- e%ol3tio-ar9 5at8(s) o4 89rot8ermal 4l3is 3ri-g oree5ositio- are esse-tial to im5ro%e escri5ti%e a- ge-etic moels 4or Carli-t95egol e5osits. &ites5eci4ic a- reco--aissa-ce st3ies ,ill co-strai- t8e com5ositio-

a- so3rce o4 ore 4l3is (meteoric' metamor58ic' magmatic)' age o4 t8e e5osits,8ere 5ossi7le' a- a-9 climatic role i- ge-esis' 5reser%atio-' a- estr3ctio-. =8eres3lta-t escri5ti%e a- ge-etic i-4ormatio- ,ill im5ro%e li4ec9cle moels 4or Carli-t95e gol e5osits. ;itio-al st39 ,ill 7e e%ote to t8e -e,l9 recog-ize see6gol occ3rre-ces o- t8e Carli- =re-. =8e res3lti-g see6 gol e5osit moel s8o3l8a%e ge-eral a55lica7ilit9 a- ,ill im5ro%e assessme-ts o4 gol 5ote-tial i-seime-tar9 7asi-s ,orl,ie a- es5eciall9 i- t8e ,ester- -ite &tates.

/ask 9: Framework of !lton6related gold deposits /om

*oore3 task leader3 tmoore4sgs%gov5


9/40

Pl3to-relate gol e5osits are t8e seco- most im5orta-t t95e o4 gol e5osits i--ort8er- >e%aa. +aor 5l3to-relate gol e5osits i- t8e *attle +i-i-g District a-at *i-g8am' ta8 are t8e 4oc3s o4 t8is task. I- t8e *attle +o3-tai- +i-i-g District'researc8 ce-ters o- 3-ersta-i-g t8e relatio- 7et,ee- t8e 5l3to-relate gole5osits' 4la-ki-g 5eri58eral golsil%er e5osits' a- -ear79 Carli-t95e e5osits

t8at ma9 re5rese-t a 8alo zo-e ge-eticall9 li-ke to t8e *attle +o3-tai- e5osits.Mork i-%ol%es (#) !D moeli-g o4 metal zo-i-g a- 4l3i4lo, 5at8s i- golric8

5or589r9 a- 5eri58eral e-%iro-me-ts 3si-g i-3str9 s355lie geoc8emical ata atCo55er Ca-9o- i- t8e *attle +o3-tai- +i-i-g District' a- (2) c8aracterizatio- o4seime-t8oste gol e5osits a- t8eir 8ost rocks so3t8 o4 t8e istrict i- t8e&8os8o-e Ra-ge (=8e Cears 3ara-gle) ,it8 t8e i-te-tio- o4 isti-g3is8i-g,8et8er t8is e-%iro-me-t is ge-eticall9 li-ke to t8e 5l3to-relate gol e5osits at*attle +o3-tai-. I- t8e *i-g8am' ta8 e5osits' researc8 4oc3ses o- e6ami-atio- o45aleot8ermal a-omalies t8at mark t8e locatio-s o4 a3ri4ero3s magmatic

89rot8ermal 5l3mes associate ,it8 t8e ore4ormi-g s9stem.

&5eci4ic s37tasks:

#. *attle +o3-tai-: =o etermi-e (#) t8ree ime-sio-al istri73tio- o4 metals i-t8e Co55er Ca-9o- 5or589r9 co55er s9stem a- (2) 5rograe a- retrograe

4l3i4lo, 5at8s t8at co-tri73te to metal istri73tio-.2. &o3t8er- &8os8o-e Ra-ge: =o etermi-e t8e -at3re o4 gol mi-eralizatio- i-

=8e Cears 3ara-gle a- its relatio- to t8e stratigra58ic a- str3ct3ral4rame,ork o4 t8e area.

!. ta8 Gol De5osits =8ermal Kistor9: ; 5ilot st39 to etermi-e t8e e6te-t o4t8e 5aleot8ermal a-omal9 aro3- t8e zo-e a3ri4ero3s magmatic89rot8ermal s9stem at t8e gia-t *i-g8am 5or589r9 C3 e5osit' 3si-g time

tem5erat3re ata i-cl3i-g 4issio-track a-al9sis' %itri-ite re4lecta-ce' a-co-oo-t alteratio- i-ices (C;I).


10/40

Fig3re: P8otogra58 o4 gol a- co55er e5osits i- t8e *attle +o3-tai- +i-i-gDistrict' >e%aa.

/ask : 8ot6Spring -old David ;ohn3 task leader3d.ohn4sgs%gov5

Kots5ri-g golsil%er e5osits re5rese-t t8e t8ir maor e5osit t95e i- -ort8er->e%aa. =8ese -ears3r4ace e5osits' t8e s8allo,est setti-g o4 ore ge-esis i--ort8er- >e%aa' 5ro%ie a li-k 7et,ee- t8e magmatic a- 89rologic e-%iro-me-ts.

O4 critical im5orta-ce i- e4i-i-g t8eir ge-esis a- role i- t8e metalloge-9 o4 t8eregio- is 3-ersta-i-g t8eir e-%iro-me-ts' age' a- relatio-s8i5 totecto-omagmatic e%e-ts alo-g t8e +ioce-e >ort8er- >e%aa Ri4t a- 3ri-g Eoce-e%olca-ism a- e6te-sio-al strai- t8o3g8t to 7e co-tem5ora-eo3s a- im5orta-t tot8e 4ormatio- o4 t8e Carli-t95e s9stems.

&5eci4ic s37tasks:

#. &8ee5 Creek a- -ort8er- &8os8o-e Ra-ges: Geologic a- geo589sical

i-%estigatio-s o4 +ioce-e magmatism a- relate 89rot8ermal mi-eral


11/40

e5osits alo-g t8e -ort8er- >e%aa ri4t i- &8ee5 Creek Ra-ge a- -ort8er-&8os8o-e Ra-ge' i-cl3i-g etaile st3ies o4 t8e +3le Ca-9o- ;3;g e5osit.

2. I%a-8oe istrict: Fiel' geoc8ro-ologic' a- geoc8emical st3ies o4 Eoce-e a-Oligoce-e %olca-ic a- seime-tar9 rocks i- t8e I%a-8oe District.

!. ;r geoc8ro-ologic st3ies.

Fig3re: Esmerala %ei-' isco%er9 o3tcro5 o4 t8e ;3rora +i-i-g District' >e%aa.

Ret3r- to: All Western Mineral Resources Projects| Western Mineral Resources Team Homepage

Mineral Resources

Eastern0 Central0 Western0 Alaska0 Minerals Information

Crustal Imaging & Characteriation0 Spatial !ata

;ccessi7ilit9FOI;Pri%ac9Policies a- >otices

"#S# !epartment of the Interior| "#S# $eological Sur%eRL: 8tt5:00mi-erals.3sgs.go%0,est05roects0--g.8tm

Page Co-tact I-4ormatio-: M+RWe'masterPage Last +oi4ie: #!+ar2""A#2:"$
http://minerals.usgs.gov/west/projectlisting.htmhttp://minerals.usgs.gov/west/index.htmhttp://minerals.usgs.gov/http://minerals.usgs.gov/east/http://minerals.cr.usgs.gov/http://minerals.usgs.gov/west/index.htmhttp://minerals.usgs.gov/alaska/http://minerals.usgs.gov/minerals/http://crustal.usgs.gov/http://mrdata.usgs.gov/http://www.usgs.gov/laws/accessibility.htmlhttp://www.usgs.gov/foia/http://www.usgs.gov/laws/privacy.htmlhttp://www.usgs.gov/laws/policies_notices.htmlhttp://www.doi.gov/http://www.usgs.gov/http://answers.usgs.gov/cgi-bin/gsanswers?pemail=dfrank&subject=WMRT+Webmaster+Feedbackhttp://answers.usgs.gov/cgi-bin/gsanswers?pemail=dfrank&subject=WMRT+Webmaster+Feedbackhttp://usa.gov/http://www.takepride.gov/http://minerals.usgs.gov/west/projectlisting.htmhttp://minerals.usgs.gov/west/index.htmhttp://minerals.usgs.gov/http://minerals.usgs.gov/east/http://minerals.cr.usgs.gov/http://minerals.usgs.gov/west/index.htmhttp://minerals.usgs.gov/alaska/http://minerals.usgs.gov/minerals/http://crustal.usgs.gov/http://mrdata.usgs.gov/http://www.usgs.gov/laws/accessibility.htmlhttp://www.usgs.gov/foia/http://www.usgs.gov/laws/privacy.htmlhttp://www.usgs.gov/laws/policies_notices.htmlhttp://www.doi.gov/http://www.usgs.gov/http://answers.usgs.gov/cgi-bin/gsanswers?pemail=dfrank&subject=WMRT+Webmaster+Feedback


12/40

Natural Gold Ores and MineralsGold and silver are obtained from a variety of ores. Most people think of nuggets and such, but the truth is that very little

comes from nuggets - nearly all newly mined gold comes from ores mined from the natural hard rocks that contain gold in

tiny, even microscopic particles. his webpage is created to show what some of those ores look like. Gold is found widely

diffused in nature even though it is one of the scarcer metals. !ery commonly, gold occurs as the native metal encased within

"uart#. $ometimes the gold is in a finely divided state, sometimes in particles of considerable si#e, as nuggets, grains, scales,

plates, threads and wires in "uart# rock. %t occurs also in a finely divided state disseminated through schistose rocks, slates

and some sedimentary rocks like limestone. %n these cases the rock has been altered by the flow of heated and minerali#ed

waters, often resulting in the impregnation of large amounts of rock with silica and iron. $ometimes the silicified rock even

replaces the original country rock. &hile historically speaking vein deposits were the most productive, these disseminateddeposits currently yield much of the worlds gold ore.

&ithin gold ores, the element occurs in nature chiefly as native gold, which is by far the most common gold bearing mineral.

%n various gold ores, the native gold commonly occurs as tiny particles contained within sulfide minerals such as pyrite. %ron

pyrite is an e'ceedingly common associate with gold, but it also serves as a reducing agent. herefore whenever gold is found

encased in pyrite, it is always present as free gold and not as some type of gold sulphide. Gold is also found at times in

chalcopyrite, galena and arsenopyriteand stibnite, but not as a rule in such large amounts as may be found in pyrite. Other

minerals, like sphalerite, pyrrhotite, magnetite and hematite sometimes carry small amounts of gold as well. Gold also occurs

as tellurides such as calaverite. (ommon gangue minerals in gold ores include "uart#, fluorite, calciteand pyrite, but many

others can be found in smaller amounts.
http://nevada-outback-gems.com/mineral_information/arsenopyrite_mineral_info.htmhttp://nevada-outback-gems.com/mineral_information/stibnite_mineral_info.htmhttp://nevada-outback-gems.com/mineral_information/sphalerite_mineral_info.htmhttp://nevada-outback-gems.com/mineral_information/Calcite_mineral_info.htmhttp://nevada-outback-gems.com/mineral_information/arsenopyrite_mineral_info.htmhttp://nevada-outback-gems.com/mineral_information/stibnite_mineral_info.htmhttp://nevada-outback-gems.com/mineral_information/sphalerite_mineral_info.htmhttp://nevada-outback-gems.com/mineral_information/Calcite_mineral_info.htm


13/40

his piece of gold ore does not look very

spectacular, but millions of tons of this

material have revolutioni#ed gold mining

across the world. %t is a sediment hosted

bulk gold deposit.

his gold ore is typical of a great series of

deposits e'tending north and south from

near (arlin, Nevadahave yielded millions

of ounces of gold. Over the last )* years,

this district has become the most

productive gold district in the +$,

producing over * million ounces of gold

to date. he ore consists of silicified rock

that often was originally some sort of limyshale. %n some places the silicification is

sufficient that the rock is known as

asperiod. Much of the material is low

grade, but there is some material is high

over an ounce per ton/ in grade. 0arrick

and Newmont control the most important

properties in the area.
http://nevada-outback-gems.com/prospecting_info/micron_gold/Nevada_gold_prod.htmhttp://nevada-outback-gems.com/prospecting_info/micron_gold/Nevada_gold_prod.htmhttp://nevada-outback-gems.com/prospecting_info/micron_gold/Nevada_gold_prod.htm


14/40

hese are crystals of (alaverite - a gold,silver and tellurium mineral. his is very

high grade gold ore from the (ripple

(reek district in (olorado. Many old time

miners mistook this type of mineral for

low grade sulfides, but this silvery metallic

material probably is 1* percent gold by

weight. ellurides are often associated

with rich ore - and that was true at

(ripple (reek as it was elsewhere.

his is a piece of gold ore from the famous

&itwatersrand gold deposits of $outh 2frica.

he ore consists of conglomerate pebbles

mostly of "uart#, in a sandy matri', with

abundant pyrite in the cement. he gold,

which occurs in the cement but not in the

pebbles, is closely connected with the pyrite

and is not visible to the naked eye. %t is

generally agreed that this auriferous

conglomerate represents an ancient placer,

although the gold and pyrite have been re-

disolved and moved around or recrystali#ed

after emplacement. Most geologists see these

ores as fossili#ed placer deposits altered by


15/40

heat and water flows.

he auriferous conglomerates of the

3ohannesburg district of $outh 2frica, are of

apparently simple structure. he

&itwatersrand system consists of slates,

"uart#ites, and conglomerates, aggregating

45,*** feet in thickness, which are overlain in

turn by the !entersdorp system of volcanics.he &itwatersrand, which is probably of

(ambrian or pre-(ambrian age, forms a

syncline with 3ohannesburg on its north side.

he series has been faulted and also cut by

diabase dikes, and while gold bearing

conglomerates are found at several different

hori#ons, the most productive ones are in the

upper part.

$mall bits of gold are scattered

through this piece of mesothermal

vein "uart# from the mother lode

region of (alifornia. he gold is

mostly concentrated around the edges

of dark colored spots of iron o'ide

that were likely originally clots of

pyrite. his is very rich gold ore.


16/40

his small but rich specimen slab is

from a narrow "uart# vein found in

Russia. Native gold runs down the

center line.


17/40

Most gold contained in "uart# veins is

in tiny particles that are not always

easy to see in the rock. his ore shows

considerable bright and visible

metallic gold disbursed through the

"uart# vein gold ore.


18/40

his chunk of vein "uart# from

Mariposa is typical of gold-"uart#

material from the mother lode district

of (alifornia. %n most gold ore, the

gold is present in tiny specs, either

within minerals like pyrite, or spread

out free among the "uart#. Normallyeven good, rich gold ore has no gold

metal which is visible to the naked

eye.


19/40

he photo at left shows small

particles of metallic gold in "uart#

taken from the mountains of (anada.

$ections of gray colored "uart# in the

specimen have this appearance

because of the finely disbursed sulfide

crystals present in this ore.


20/40

he mining district of 2ustin, in

central Nevada was well known for its

silver ores, but this specimen of

o'idi#ed ore also contains a

considerable amount of gold in

addition to the silver. %t shows few

sulfide minerals because it is wello'idi#ed.


21/40

Gold does not commonly combine

with other elements, but there aree'ceptions. hese are the telluride

minerals such as (alaverite. his very

rich gold ore specimen came from the

6l 7aso gold mine in the (ripple

(reek district in (olorado.


22/40

8ere is a small gold-"uart# stringer

that was cut through by a core drill

during e'ploration. his core shows

coarse crystalline gold near the wall

of the small veinlet. his specimen

was drilled at the 9ensington mine

property in 2laska.

#


23/40

8ere is yet another beautiful gold

piece from the big mine at Round

Mountain. he gold is formed in a

mossy crystalline pattern on the

surface of the rock. he bulk of the

ore which comes from his mine,

produces gold only in tinymicroscopic particles. Only a very

small percentage of the gold occurs in

visible pieces like this.


24/40

his very large nugget gold specimen

contains significant "uart# and is

from 2laska. %t:s rounded shape

shows the signs of wear and tumbling

in a river environment.

Gold Ore Minerals(he most prominent is native gold - most of the native gold contains a small amount of silver,copper, platinum, etc. elluride

minerals are the most common minerals which contain significant gold in their make up. hey include; 7et#ite 2g,2u/


25/40


26/40

save in the case of replacement. 2gain, true fissure veins, in the more recent lava flows, often appear intimately associated with

tellurium, and these often give rise to ore pockets of great richness. %n the telluride group the ores occur either as definite

tellurides of gold with silver, lead and antimony, or as native gold accompanied with various tellurides. he gangue minerals

are "uart# and fluorite? calcite may be sparingly present. %n 0oulder (ounty, (olorado, roscoelite, a vanadium mica, is

associated with the tellurides.

%f you haven:t seen my original crystal nugget page, beautiful nugget photos; (RC$2D GOD@ N+GG6$

2 second page of beautiful nugget photos; GOD@ 2N@ 7D2%N+M N+GG6$

% also have a page of beautiful $ilver Ore $pecimen photos; $%D!6R OR6$ 2N@ M%N6R2D$

Aor more information on gold vein ores, check out my page of (2D%AORN%2 MO86R DO@6 GOD@

E+2RF !6%N$

7lease note these specimens are not for sale, most are not owned by me. % present this page as a reference, as

folks ust love to look at real natural beauty and these gold specimens are definitely that.7hotographs and te'tare copyrighted and may not be reproduced without permission.

Nevada Outback Gems

Find out more by checking out all of our links below:Dearn he 0asics of 7lacer Mining for Gold Docations to 7rospect for Gold for Aree

0uild Cour Own Gold Mining 6"uipment Miner:s Reference Guide; 8ow its @one

(hris: Gold 7rospecting 6ncyclopedia%nvesting %n Gold and 7recious

MetalsMake Cour Own 3ewelry

Metal @etecting with the M Metal @etector 7rospecting %n Nevada 7rospecting %n (alifornia

Nevada Outback Dibrary and 0ookstore - Dearn moreH 7rospecting %n 2ri#ona 7rospecting %n 2laska

Natural Gold Nugget 7hotos; 0ig Nuggets, (rystal GoldRecovering Gold Arom 0lack

$and

Metal @etecting Aor Gold

Nuggets

he Rockhound:s (orner for Gem 8unting 7anning for Gold Nuggets 2dvice on $elling Cour Gold
http://nevada-outback-gems.com/prospect/gold_specimen/Natural_gold.htmhttp://nevada-outback-gems.com/prospect/gold_specimen/Natural_gold2.htmhttp://nevada-outback-gems.com/prospect/gold_specimen/Silver_ores.htmhttp://nevada-outback-gems.com/prospect/gold_specimen/California_quartz_veins.htmhttp://nevada-outback-gems.com/prospect/gold_specimen/California_quartz_veins.htmhttp://nevada-outback-gems.com/basic_prospecting/Basic_placer.htmhttp://nevada-outback-gems.com/prospecting_info/Nugget_detect_possib.htmhttp://nevada-outback-gems.com/design_plans/DIY_equipment.htmhttp://nevada-outback-gems.com/Reference_pages/Miners_Reference.htmhttp://nevada-outback-gems.com/prospect/chris_prospect.htmhttp://nevada-outback-gems.com/gold_invest/Investing_Gold.htmhttp://nevada-outback-gems.com/gold_invest/Investing_Gold.htmhttp://nevada-outback-gems.com/Make_jewelry/making_jewelry.htmhttp://nevada-outback-gems.com/MXT_files/MXT_basepage.htmhttp://nevada-outback-gems.com/prospecting_info/Nevada_Prospecting.htmhttp://nevada-outback-gems.com/prospecting_info/California_Prospecting.htmhttp://nevada-outback-gems.com/Bookstore/nevada_outb_library_n_books.htmhttp://nevada-outback-gems.com/prospecting_info/Arizona_Prospecting.htmhttp://nevada-outback-gems.com/prospecting_info/Alaska_Prospecting.htmhttp://nevada-outback-gems.com/prospect/gold_specimen/Natural_gold.htmhttp://nevada-outback-gems.com/Reference_pages/black_sands.htmhttp://nevada-outback-gems.com/Reference_pages/black_sands.htmhttp://nevada-outback-gems.com/basic_prospecting/metal_detecting.htmhttp://nevada-outback-gems.com/basic_prospecting/metal_detecting.htmhttp://nevada-outback-gems.com/Rockhound/Rockhound%2520_Corner.htmhttp://nevada-outback-gems.com/basic_prospecting/Panning.htmhttp://nevada-outback-gems.com/Reference_pages/selling_gold.htmhttp://nevada-outback-gems.com/prospect/gold_specimen/Natural_gold.htmhttp://nevada-outback-gems.com/prospect/gold_specimen/Natural_gold2.htmhttp://nevada-outback-gems.com/prospect/gold_specimen/Silver_ores.htmhttp://nevada-outback-gems.com/prospect/gold_specimen/California_quartz_veins.htmhttp://nevada-outback-gems.com/prospect/gold_specimen/California_quartz_veins.htmhttp://nevada-outback-gems.com/basic_prospecting/Basic_placer.htmhttp://nevada-outback-gems.com/prospecting_info/Nugget_detect_possib.htmhttp://nevada-outback-gems.com/design_plans/DIY_equipment.htmhttp://nevada-outback-gems.com/Reference_pages/Miners_Reference.htmhttp://nevada-outback-gems.com/prospect/chris_prospect.htmhttp://nevada-outback-gems.com/gold_invest/Investing_Gold.htmhttp://nevada-outback-gems.com/gold_invest/Investing_Gold.htmhttp://nevada-outback-gems.com/Make_jewelry/making_jewelry.htmhttp://nevada-outback-gems.com/MXT_files/MXT_basepage.htmhttp://nevada-outback-gems.com/prospecting_info/Nevada_Prospecting.htmhttp://nevada-outback-gems.com/prospecting_info/California_Prospecting.htmhttp://nevada-outback-gems.com/Bookstore/nevada_outb_library_n_books.htmhttp://nevada-outback-gems.com/prospecting_info/Arizona_Prospecting.htmhttp://nevada-outback-gems.com/prospecting_info/Alaska_Prospecting.htmhttp://nevada-outback-gems.com/prospect/gold_specimen/Natural_gold.htmhttp://nevada-outback-gems.com/Reference_pages/black_sands.htmhttp://nevada-outback-gems.com/Reference_pages/black_sands.htmhttp://nevada-outback-gems.com/basic_prospecting/metal_detecting.htmhttp://nevada-outback-gems.com/basic_prospecting/metal_detecting.htmhttp://nevada-outback-gems.com/Rockhound/Rockhound%2520_Corner.htmhttp://nevada-outback-gems.com/basic_prospecting/Panning.htmhttp://nevada-outback-gems.com/Reference_pages/selling_gold.htm


27/40

ake a virtual tour of our Nevada ur"uoise mines 0uild Cour Own Gold @redge @redging for Gold Nuggets

Our Aree (olored Gemstone %nformation 6ncyclopedia Gold $luice 0o' 7lans Gold %nvestment !ehicles

(hris: 2dventures 7rospecting for Gold, $ilver, and more 7rocessing Rich Gold Ores 2ffordable 8ome &elding

More %nfo about ur"uoise, the 0eautiful GemNevada Outback Gems

8omepage

Nevada Outback Gems $ite

Map

$ol) *ugget+ $ol) ,e%er+ $ol) Prospecting+ $ol) Panning+ $ol) )etecting+ gol) flakes+ gol) )ust+ gol) je-elr+ gol) crstals+ gol) 'ullion+ gol) coins+ gol)

'ars+ gol) mine+ gol) )igger
http://nevada-outback-gems.com/mine_tour_turq/our_turquoise_mines.htmhttp://nevada-outback-gems.com/design_plans/DIY_dredge/Homemade_dredge.htmhttp://nevada-outback-gems.com/basic_prospecting/Dredging.htmhttp://nevada-outback-gems.com/Encyclopedia_pages/Gemstone_Encyclopedia.htmhttp://nevada-outback-gems.com/design_plans/DIY_hand_sluice/hand_sluice.htmhttp://nevada-outback-gems.com/gold_invest/investing_gold_vehicles.htmhttp://nevada-outback-gems.com/prospect/prospect_adventures.htmhttp://nevada-outback-gems.com/Reference_pages/hand_crush.htmhttp://nevada-outback-gems.com/welder_components/welder/affordable_welder.htmhttp://nevada-outback-gems.com/Encyclopedia_pages/Turquoise_info.htmhttp://nevada-outback-gems.com/index.htmhttp://nevada-outback-gems.com/index.htmhttp://nevada-outback-gems.com/site_map/site_map_page.htmhttp://nevada-outback-gems.com/site_map/site_map_page.htmhttp://nevada-outback-gems.com/mine_tour_turq/our_turquoise_mines.htmhttp://nevada-outback-gems.com/design_plans/DIY_dredge/Homemade_dredge.htmhttp://nevada-outback-gems.com/basic_prospecting/Dredging.htmhttp://nevada-outback-gems.com/Encyclopedia_pages/Gemstone_Encyclopedia.htmhttp://nevada-outback-gems.com/design_plans/DIY_hand_sluice/hand_sluice.htmhttp://nevada-outback-gems.com/gold_invest/investing_gold_vehicles.htmhttp://nevada-outback-gems.com/prospect/prospect_adventures.htmhttp://nevada-outback-gems.com/Reference_pages/hand_crush.htmhttp://nevada-outback-gems.com/welder_components/welder/affordable_welder.htmhttp://nevada-outback-gems.com/Encyclopedia_pages/Turquoise_info.htmhttp://nevada-outback-gems.com/index.htmhttp://nevada-outback-gems.com/index.htmhttp://nevada-outback-gems.com/site_map/site_map_page.htmhttp://nevada-outback-gems.com/site_map/site_map_page.htm


28/40

Different Ore Types

Silver Ore Lead Ore Manganese Gold Ore

Our iron ore mines are mostly from Mexico,Peru and India. Its iron composites lie between

62 and 6!.

T"ose ores always come wit" "i#" $uality andsurely, at an attracti%e rate.

&e always offer a best rate to t"ose ones w"o are willin# to be incorporation wit" us. It results in accumulation of presti#ious clients in

our ser%ice track.

'esides, we "a%e continuously been de%elopin# different mines fromot"er countires in order to o%ercome t"e needs from t"e market.

Pricin# is not our determination factor before closin# deal, butpossibility of buildin# a lon#(term realtions"ip is)

*uantity of deal is not our consideration before offerin#, but t"eones+ earnest is)
http://www.west-land.com/Westland/services.htmlmailto:[email protected]://www.west-land.com/Westland/about_us.htmlhttp://www.west-land.com/


29/40


30/40

&to-es *o3lers>e, Co-str3ctio-Re-o%atio-La-sca5es Galler9Po-sMater4allsMater Feat3re Galler9

Landscape Materials - Rocks & Gravel

List o4 +aterials 4or La-sca5i-g i- Colorao

-ravel

Pea 1ra%el 4ecycled 3sp"alt 1ray 'ree5e 4ed 'ree5e Tan 'ree5e

7B9 Rock

'lack 1ranite 'utter 4ock /olorado 4ose ocal 4i%er 4ock Mountain 1ranite

4ed 4oad base 4oad base &estern 4i%er &yomin# Pink &yomin# 4ed

0 Rock

&"ite *uart5 &estern 4i%er/olorado 4i%er

0 0B2 Rock

-ravel 6 Rock

Contact sEmail /he 1wner!R1;EC/ -)""ER
http://www.yardelves.com/materials/stones.aspxhttp://www.yardelves.com/landscape/landscape_construction.aspxhttp://www.yardelves.com/landscape/landscape_renovation.aspxhttp://www.yardelves.com/Landscapes-a7.aspxhttp://www.yardelves.com/water/ponds.aspxhttp://www.yardelves.com/water/waterfalls.aspxhttp://www.yardelves.com/Water_Features-a10.aspxhttp://www.yardelves.com/sales.aspxhttp://www.yardelves.com/sales.aspxhttp://www.yardelves.com/contactForm.aspxhttp://www.yardelves.com/projects/http://www.yardelves.com/images/materials/COLORADO_RIVER_FLATS_jpg_lg.jpghttp://www.yardelves.com/images/materials/1_WESTERN_RIVER_jpg_lg.jpghttp://www.yardelves.com/images/materials/1INCH_MOUNTAIN_WHITE_QUARTZ_jpg_lg.jpghttp://www.yardelves.com/images/materials/75_Wyoming_Red_jpg_lg.jpghttp://www.yardelves.com/images/materials/75_Wyoming_Pink_jpg_lg.jpghttp://www.yardelves.com/images/materials/75_Western_River_jpg_lg.jpghttp://www.yardelves.com/images/materials/75_Roadbase_jpg_lg.jpghttp://www.yardelves.com/images/materials/75_Red_Roadbase_jpg_lg.jpghttp://www.yardelves.com/images/materials/75_Mountain_Granite_jpg_lg.jpghttp://www.yardelves.com/images/materials/75_Local_River_Rock_jpg_lg.jpghttp://www.yardelves.com/images/materials/75_Colorado_Rose_jpg_lg.jpghttp://www.yardelves.com/images/materials/75_Butter_Rock_jpg_lg.jpghttp://www.yardelves.com/images/materials/75_Black_Granite_jpg_lg.jpghttp://www.yardelves.com/images/materials/TAN_BREEZE_jpg_lg.jpghttp://www.yardelves.com/images/materials/REDBREEZE_jpg_lg.jpghttp://www.yardelves.com/images/materials/GREY_BREEZE_jpg_lg.jpghttp://www.yardelves.com/images/materials/RECYCLED_ASPHALT_jpg_lg.jpghttp://www.yardelves.com/images/materials/PEA_GRAVEL_jpg_lg.jpghttp://www.addthis.com/bookmark.php?v=120&winname=addthis&pub=blandblom%40ipont-tech.com&source=men-120&lng=en-us&s=&url=http%3A%2F%2Fwww.yardelves.com%2Fmaterials%2Frocks.aspx&title=Landscape%20Materials%20for%20Colorado%20-%20Gravel%20and%20Rocks&logo=&logobg=&logocolor=&ate=AT-blandblom%40ipont-tech.com/-/ps-0/2bbeb80abd34c4/1&CXNID=2000001.5215456080540439074NXC&pre=http%3A%2F%2Fimages.google.co.id%2Fimgres%3Fimgurl%3Dhttp%3A%2F%2Fwww.yardelves.com%2Fimages%2Fmaterials%2F1_5INCH_GOLD_ORE_jpg_lg.jpg%26imgrefurl%3Dhttp%3A%2F%2Fwww.yardelves.com%2Fmaterials%2Frocks.aspx%26usg%3D__nMOpAjYIB5zNQHgeT39lLztVtVs%3D%26h%3D375%26w%3D500%26sz%3D65%26hl%3Did%26start%3D6%26um%3D1%26tbnid%3D6GboLlMbn-3NvM%3A%26tbnh%3D98%26tbnw%3D130%26prev%3D%2Fimages%253Fq%253Dgold%252Bore%2526hl%253Did%2526sa%253DX%2526um%253D1http://www.yardelves.com/materials/stones.aspxhttp://www.yardelves.com/landscape/landscape_construction.aspxhttp://www.yardelves.com/landscape/landscape_renovation.aspxhttp://www.yardelves.com/Landscapes-a7.aspxhttp://www.yardelves.com/water/ponds.aspxhttp://www.yardelves.com/water/waterfalls.aspxhttp://www.yardelves.com/Water_Features-a10.aspxhttp://www.yardelves.com/sales.aspxhttp://www.yardelves.com/contactForm.aspxhttp://www.yardelves.com/projects/


31/40

'lack 1ranite 'ur#undy a%a 'utter 4ock 1old Ore Indian unset 1ranite

&estern unset /"eyenne 1ray /olorado 4ose ocal 4i%er Pioneer 1ranite

Pioneer 4ainbow &estern 4i%er &yomin# 'rown &yomin# Pink &yomin# 4ed

Kome< +aterials< Gra%el Rock

8ome| )'ot s| Sitemap| !rivacy|Contact s |Email /he 1wner | #?2"" ar El%es'I-c.

Fi- la-sca5i-g material s3c8 as rocks a- gra%el i- >ort8er- Colorao a- Fort Colli-s 4rom ar El%es.

Ore Microscopy Applied to Ore Dressing

Dr. Rainer Lehne, Lehne and Associates, Heidelerg

www.iso#yre.com

T"is pa#e contains a selection of micro(p"otos of polis"ed sections used in t"e course 78699 Ore dressin# ( :n%ironmental 1eoc"emistryof Mine &aste Mana#ement 4. e"ne, '. Dold07 offered to t"e #raduate students of t"e ;ni%ersities of 1ene%a and ausanne ot"erparticipants are also accepted, see conditions and dates under "ttp


32/40

Introduction to ore microscopy"ttp


33/40

8 1old ore 'ibiani=1"ana0. Bati%e #old occurs bot" free and as inclusions in arsenopyrite. &idt" of micro(p"oto corresponds to approx. A9 microns.


34/40

2 1old ore /allion=3ustralia0. Bati%e #old in association wit" colloform #oet"ite indicates contemporaneous precipitation. &idt" of micro(p"oto corresponds toapprox. 29 microns.


35/40

? /opper concentrate Be%es /or%o=Portu#al0. T"e concentrate is based on c"alcopyrite. It contains subordinate pyrite and accessory sp"alerite and stannite.&idt" of micro(p"oto corresponds to 99 microns.


36/40

A /opper concentrate :rtsber#=Indonesia0. Cetero#eneous concentrate based on c"alcopyrite and bornite wit" subordinate amounts of co%ellite and di#enite.T"ere is also a considerable portion of pyrite. &idt" of micro(p"oto corresponds to 99 microns.


37/40

9 /opper concentrate Ok Tedi=Papua Bew 1uinea0. /opper concentrate based on c"alcopyrite and di#enite. T"ere is also a substantial amount of pyrite. &idt" ofmicro(p"oto corresponds to 99 microns.


38/40

60 /opper concentrate :scondida=/"ile0. /opper concentrate based mainly on secondary copper sulp"ides suc" as di#enite, c"alcocite, and co%ellite. T"ere arealso abundant pyrite, minor amounts of c"alcopyrite, and accessory molybdenite. &idt" of micro(p"oto corresponds to 99 microns.


39/40

0 ead(5inc concentrate on# To"=T"ailand0. T"e bulk concentrate contains bot" #alena and sp"alerite t"at cannot be fully liberated because of fine andcomplex lockin# textures. &idt" of micro(p"oto corresponds to 99 microns.


40/40

-0 Einc concentrate /ayeli=Turkey0. T"e concentrate consists of sp"alerite wit" minor amounts of free and locked pyrite. 3 certain copper content in t"econcentrate is caused by minute inclusions of c"alcopyrite in sp"alerite 7c"alcopyrite disease70. &idt" of micro(p"oto corresponds to 99 microns.

FOre depositsG

F;ni%ersity of 1ene%aG F:art" ciencesG F1eolo#y DepartmentG FMineralo#y DepartmentGFInstitut >.(3. >O4:G FMaHtrise uni%ersitaire en ciences de l+en%ironnement ( M;:G F:T:G

F1:Oforum/CG FOt"er :art" ciences inksG FMineral searc"G

end comments on pa#e to
http://www.unige.ch/sciences/terre/mineral/ore/min_ore.htmlhttp://www.unige.ch/sciences/terre/mineral/ore/min_ore.htmlhttp://www.unige.ch/sciences/terre/mineral/ore/min_ore.htmlhttp://www.unige.ch/http://www.unige.ch/http://www.unige.ch/http://www.unige.ch/sciences/terre/http://www.unige.ch/sciences/terre/http://www.unige.ch/sciences/terre/geologie/http://www.unige.ch/sciences/terre/mineral/http://www.unige.ch/sciences/terre/mineral/http://www.unige.ch/forel/index.htmlhttp://www.unige.ch/muse/Metiers.htmlhttp://www.geoleman.ch/http://www.geoleman.ch/http://www.geoforum.ch/http://un2sg4.unige.ch/athena/mineral/minlinks.htmlhttp://un2sg4.unige.ch/athena/mineral/search.htmlhttp://www.unige.ch/sciences/terre/mineral/admin/mail_pp_unige.htmlhttp://www.unige.ch/sciences/terre/mineral/admin/mail_pp_unige.htmlhttp://www.unige.ch/sciences/terre/mineral/ore/min_ore.htmlhttp://www.unige.ch/http://www.unige.ch/sciences/terre/http://www.unige.ch/sciences/terre/geologie/http://www.unige.ch/sciences/terre/mineral/http://www.unige.ch/forel/index.htmlhttp://www.unige.ch/muse/Metiers.htmlhttp://www.geoleman.ch/http://www.geoforum.ch/http://un2sg4.unige.ch/athena/mineral/minlinks.htmlhttp://un2sg4.unige.ch/athena/mineral/search.html

PIECE OF GOLD ORE

Documents

Transcript of PIECE OF GOLD ORE