Quod T. D. I 8001(0 {o I L L - Kentucky Geological...
Transcript of Quod T. D. I 8001(0 {o I L L - Kentucky Geological...
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Hole No.GNJK- 6- Property Area JQOf.S -~~t5±Qae: 8!J. eCqj&:.t County RA l--.' vOL"'D \-.\ State N. C- . Quod T. D.
Coordinates 354420 I 800 1(0 c'O {o I
'7
Elev. Bearino Incl. Contractor
Started L L Completed L L Casino
Core Disposition Loooed By Te . PariS <10% )sar,
~~&es~;~o 0/0 --
- -- -
I- - -- I- -
.5 I- - -I- -
-I- - -
10 I- - . -I- -l-
I- -IS
- -- -- I- -
-20
I- -I- - -I- - I- -
--25
-- -I- -
30 I- - -I- - -I- -I- - 1 o\lERBURD£rI
,;" ~1'rIE IJt ~ 35·"" 35 t?! - 6JC. ~.
0 ".,,,f;c +uf{ ""felsic lapin; (i'~ f') I- - w~ I- - -~ 15,% c.ore. lQ.3'5
40 ~s
~ 'ZD. <c.J. hvy ox .
I- -I- - J
I- -I- - - ~ 1"7. "" 10"
If r ""y C)< '..J . .
EXPLORATION
Hole No.fzNJ\(-2.. Property Area JOoe5- Ke.ystone. Au Projed County State Quad T. D.
Coordinates
Elev. Bearino Incl. Contractor
Started l. l. Completed l. l. Casino
Core Disposition Laooed By T A. Pori:j' .
<.~~ ,"/fib Stri:jI ~ 4 ~ 0/0 --
- -
- - 'to?o CQf"e {CJss; 2ane of h"Y' 01(
50
- -I- - -
-6 ,~~; eJr'f. ~ I- -- 5S l-. r- -- ~ - r 1I1.rl;c nAt !oJ f~:: 14p,7/i
I-~ - 6af., CDrI! ("10$; zql1~ at h ... y ox. ~ ,,0 I-
t!- -J.-I- -
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"S ~ I- - -I- - . I- - -I- - - 75'7.. core. l~s; z.oo~ cJ hvy.ox.
-- 70 -
/ - -- -- - -
G'rt-i ;"';'15 'f~ 75 ~ ~ -
I- - ~ -I- - l1= I- ~ 50'1.,,~1l:la~ ~"Q of h."" .ox . 80 I- ~ . I- ~ . I- - ~~ -
~ -
f • gS
~ --
inPJ· • fo% c..ar" loSS" i fetsie ,a-1Qf';\li-hA
! t; -~ - -
Q~
EX~LORATION
Hole No.GNJK - 2.. Property Area ,!ones-KerS±Cfle AtA. Projecr Count y State Quad T. D. Coordinates
Elev. Bearino Incl. Contractor
Started I. L Completed I. I. Cas ino
Core Disposition Loooed By TA , eariS .
u <LCf.~~ .. % --<u ' • .,,~~
I '1<1 --
~py. -
ffO?, CAJf'C (OS5 i ~~ IQP;J(;-,cl1uff - -1 - -
19 I 'is 6 ' r.etD ~f'I' /'15~ - - -- -- -
-IOD 'to~" ~ (ClS~ . ~ic laoilli.fuff
- -I ""~hvr" -~ -~ - -
I
/05 ~--
~ - ~~ lox.z", ft'S rr - 0.( .fr.s ~ 2/~ ,.,,&:. +uff IoJ £clsiccr i01errrteJ COnlP \QP;Ui
1/0 o.
I-q.. ~ - ~ life,+,..
r-I- - -:: 14p;rr; ... "., ca. ~~c:J" jilt<.. t: jtinJi
I
6 /~eI 13 _ ~ - "0.;:
I=:..~ / Irf~e Il1p,lI/ fA - .. --:...::..
f- . ~
liS ~o p- m.rtie -tuff IoV feiSlC IQP,lll' ~b"rrlh.s f- -.d
Uto, '7'<'ts, Of- i/1 . t;..~ f- - f-"-... f.-C":::
~.-/1(, ~(' •
f- -,'-='-:;t.~
/lO -' I&"cr, f- - ~-=- > k>~y OJl·2o ·
~lc ... - ~ &1'\ ,~ « pr ,- ,..,~c -luff '"' inderr"d . c..:y"p. lapiU; ... - " :.,.. ... f--~ I k..d.~~. (",a{.'c ~<!lJJI\- (qp il!;-tuff')
...!.. ..
115 [0- 1-1 r ... "A. ~t'>. .,......;."" I" o~
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- ~...;: 130
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- ~-=7 ';~ (".,af;c f.c1J ]«(-(:1piJli -n.~)
I f- - &"0 Illeao,ed ~, ~ '(e+.- eI/.n -= 'Y ,.,,.. ,oJ .J
£X~LORATION
Hole No.GNJK-2. Property ______________ Area .Jafles- uy:siooe AI.-< Projec..t County _________ State ________ Quad ___________ T. D. _____ _
Coordinates _____________________________________ _
~E~I.~Y~.==========~B~ea~r~in~O=====~----lncl.----Contractor-_____________ _
Started / I Completed_--L.I_..LI __ Casino----,=-----
6 1'tU ~'nll I~ ~
-~II ..... f ~'r),.J 176,.
Core Disposition LoOOed By LA. parr's
su~·&'~t
IJr -tnf"" -, f- -
I f- -
~ f- -f- -
r ... -
--
~P1 f- -.... po -
-I
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:
I
+ ---
f-I , -i r+ {
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--
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sc.o+ 'l.l(1 ~s
.fd sic fa?,?/,' +uf{ j hp,/ft· i~ J"ill dia. Jnif14r c.a. -H,fD"Jhot&t m-r,.
170 ~.:-j-----------------1
,[ t- -
EX~LORATION
Hole No.GMfK-2. Property ______________ Areo Ilooes-K~vS±Qne At.< Project County State Quod T. D, _____ _ Coordinotes _____________________________________ _
~E~le~Y~.===========8~e~or~in~!I~====~ ____ lnCI. ____ Controctor ______________ _
Started I I Completed_---L.1_ ...... 1 __ Cosing ______ _
Core Disposition Logged By TA , pacis
-c::> _
-co-
'"=-- F-=-0--_ - ---
--G>
~ ~ , =-~ - ~.;-c
- ~ci: - "':-0--
2.CXJ a:;; jC3' -
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20.5 ~,:-= <3-
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~~--~-+--+-_+-r-r~220~~ t - t-e>o
t- -
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u ~n~ 5po-B CCl, ~r i oc.c.as 11I01li rep\~ce.:J by pY
JdrbdJd "u.~f/ .felsic /ep/lil-tAX ~jp... Co.. tl;S'!>eM, ill m~
G4, ~:I(~
EXPLORATION
Hole No. GNJK-2. Property Area Jooes -Ker)~JQoe ALL ProjecT County State Quod T. D. Coordinates
Elev. Bearing Incl. Contractor
Started L L Completed L L Casing
Core Disposition Logged By ~ . TA.' QfrS -
hd~~·!~ % --SJJ '~~ll5
~ --~ - ~ =t1~iv- w t'y¢.po· , I-- c::> ca.. "".~r"_ ". - 1-.-\ " =~ r: ~ .. - ~~ co.J;U. vuy
~I?" :. - t~ ''3~. CA~iD"\luS ,
. ~.
1230 ~ ~ sr (a~y) ~sic (QP;\I~ fuff - --c:> _
: 1--- C>~ -~ -~=-
,~ 12" 1--<::>
~ I ~t:h. ... c:s _ ,
235 c:>
t <=>-
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~ C.JJ'ill-¥--240
~-
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r: - E - ==--=-.c:t_
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245 ~~
~ ~ C4 \;U ~rs.
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~ ~~ Ca,hy> £dsic: lop;1!i 4uff t - --c:--;
1250 _c:::>
i ~-
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fJ:~ ,..J ;. 15"'>~ - ~
1255 ~C>
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255 :"..2",r.5 '- so ... e lap;J/i pff, ~~~ CO'_
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- ~~ (. ... <;iU ~r~"~s \ - c:-_
.: - I-~ ... ~~ G&o.fif/ &-. -
JC,5 r--c:> ~-
it, ~ ~ - I-=-c=--
1 ;
~~ ~ -~c; - ~--:::: _c:::>
~ - I-~-
1.,7/"1 I--=-
EXPLORATION
Hole No. GN.lK- 2.. Property Areo dooes - Keystooe Au. ProjecT County Stote Quod T. D.
Coordinates
'Elev. Bearing Incl. Contractor
Started !. L Completed L !. Casing
Core Disposition Logged By I. t!, the is. -
<;L~.k~~~~ % --
70 ~IJ-="'" 2c>j ~~ .. « ~rs t - a
v-o ,,'/-' ~f ~ If '1 2- I7L fY
I C;-c:> fIJI - ~
-~ ca.~·a ~ "J~ ltJ..oJ 2.7(' - ~ ~i' Sr: in+e.rmed.CQ~,1tJf w,oh..,co..i" ""'+~
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c.a.t-.1/..frs.
- CA ~pots
I- - ~ '!' e...~I . .J;, ~ - , lICe co. spots j , 225 ~1j tJ,~' 1 ! - r~ ~
~ - e- C4t;;!\ "~s ,
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1.90 f--c::>' --~ - -~
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" ~;yJ r- - <7- ~.~r,(ashy) ~ic (oe.-a; +uf"t Jfr lL,,5" ~ 1'15 l--T"
~ <:A fill ;.r5
t ~ - ~_S ~ ~
~
r:- ~ ~ - ~ CA~pY. !;ilL {C-.
300
~ ~ - Ii€. cA.","~y.~tf(' fT -
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14/~. 4,,;,J. "r - ~
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\ --fTr -=--::-;:;:-,;. ",---
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EX~LORATION
Hole No.GNJK-2 Property ______________ Area Jones-Keystone Au Project County-----_____ State ________ Quad T. D. _____ _ Coordinotes _______________________________________________ _
~E~I~ev~.==========.~Be~a~r~in~g=======;_---lncl.----Contractor _________________ _
Started _---'-I_-LI __ Completed _.......LI_-L..1 __ Casing ______ _
Core Disposition Logged By T A. FOr-is
' .. . ,
I- .! -~, .. - -~ . : -
EXPLORATION
Hole No. GNJ K-Z Property _______________ Ar e a ---...\\..LI.!"!oLJnts:e;.::lsc.::-1:.Ke:;q'/GS;:tm£..l,OaO.lJe;,..,..,,AL.L.LoIA~P_nL.lo..!.:Jp;ie;.,!oct..!..-__
County-----_____ State ________ Ouad ___________ T.D. _____ _ Coordinates ______________________________________ ___
~E~I~ev~.-==========..B~e~a:':r~in~g~=====::::;:__--- Incl. _____ Controctor _______________ _
Storte d _---'/~--I.I __ Completed _--I./~-LI __ CO s in 9 _______ _
Core Disposition Logged By T f1 . Poris
~elsic. KI- (opi(!; +ufF (i '-t.~/"p;l!i) f:,It cfasfr kJ"1.5~fY
SC4f CIA . "eyes"
'~ispy • IOrill; -h.ff - ... ,dd.d?
t"'f-V. - (:1" J,1e Z4 dhc.r s'de
CJJ £11 bo:!ded..(~.
nu ctI c.res if"" bnJs J ",elk} +~?
EX,.LORATION
Hole No.GNJK-2. Property ______________ Area Jana-Ke.ystone Au Prqjee-t I
County _________ State ________ Quad ___________ T. D. _____ _
Coordinates _____________________________________ _
~E~I::ey~.===========B~e~ar~in~Q~=====_----lncl.----Contractor ______________ _
Started _~/_--L..I __ Completed _--L.1_..L1 __ Casing ______ _
Core Disposition LOQged By Til Pacis
. Qf{-~{sic iap;di -h.f( srrorlj pyn7:u.f,o"
lilp;I/; partly rt:fk:d I.y f)' '" t»
. . EX,.LORATION
Hole No.GNJK-~ Property ______________ Area Jooes-l<eysHme Au Project County-_________ State ________ Quad ___________ T. D. _____ _
Coordinates ____________________________________________ _
~E~f~eY~.===========..:B~e~o~ri~nO~======~---lncl.----Controctor ______________ _
Started _ ........ I'-----LI __ Completed _---I./~--'-I __ COS in II _______ _
Core Disposition LOllged By TA Paris
'Igo ~
ca Trlltrs f- -f- - ~.~
~ ~ - ~ CA f,ll fo..
-Of/z. -,lJ- .
b:f .• 1. - .~~ ~ - )'.7.. t:c./,r.. frll "'1s .~~ I,n- q.gS I- - 4-85.2.5 'TD.
.,.... ... r-... - f-
-l/f/CJ
f- f-
r- - ~
... -~ - ~
II IOC"
" . SPLII SHEt T GN Jj(-2 i?14- c- L flJ -•
6AMPLf 1t INT~RvAL Tt-/(CKN£"SS SPLIT rot<.. 330- 335 5
2 33~- 3,-/0 5 3 3tfo - 3Lf5 5 if 31-5 - 350 5 5 i
350- 355 5 . ,
~ 355-3bo 5 7 3bcJ -3b5 5
'l 8 365 -370 5 0 9 370 -375 5 ("-/0 375-380 5 ---II 380-385 5
..b
'i 12- 385-390 5 "-....
13 390-395 5 ~
<-Jt 315 -'f00 5 /5 Lj (JO -lfo5 S )b '105 -7(0 .s 17 'f(0 - tf/5 5
'" 1.+ ! or:: _ :"'_ ~ -: .-It.. J i ~ ---/~ Lf2o-Lf25 5 2.6 Jf25-L/-3° 5 2) Lf3o-'t3S 5 2L Lf35-'/io 5
..
Blu~ Ridge Analytical Laboratory, Inc. Post Office Box 7545 • Charlottesville • Virginia • 22906 • 804,973--4353
r u.s. Borax & Chemical Corp. P.O. Box 10831 Knoxville. Tenn. 37919
Attn: Harry Dunn
April 10, 1980
Job No. 780
L Submitted by: Bill Szymanski
([£rtiftath~ of J\ncrl ~5i5
There are 22 rock samples analyzed as follows: ----Sample Number ppm Au Sample Number ppm Au
GNJK-l .25 GNJK-12 .25 GNJK-2 .20 GNJK-13 _.35 GNJK-3 .22 GNJK-14 .28 GNJK-4 .26 GNJK-15 .38 GNJK-5 .31 GNJK-16 . 18 GNJK-6 .28 GNJ K-17 .23 GNJK-7 .23 GNJK-18 .37 GNJK-8 .22 GNJK-19 . 16 GNJK-9 . 23 GNJK-20 .21 GNJK-l0 .25 GNJK-21 .21 GNJK-ll .21 GNJK-22 .20
G/'I:JK-2 Respectfully submitted:
{j ~noJ J (;) '~fJjJJ Donald W. Foss ~ President
DWF :jaw
Samples are GNJK 2-
to cc ~ (j) 0 0 0 c· 0 0 0 0 0 0
(j) (J) v., (J) (f) (J) ~ ~ ~ :E .~ ~
I I I I I I I
~ < ~"' .. : " . - ~ ',' ~., .. . '1 ' : .... . .;:~ .
o · '- 0 b
~ . ...; .
. .' -"' 0
: " ' :-' .....
::-- . ." ~- :' " : "'~ ..... ~', -'. ::" :" . . ,. .
••• ~.. .. .. I . - ' .'
' .. . -, ',: 0 . t; .. 0 ': .... . ": - '0
.,"
•
. . ~ " '. -.. . ' . mved~"
• • o o
o • • • •
___ 0
.:J; O ~~ .... - 0 _...-0--:---_ 0 0 • ~if ,0--:------ ...... - ----.jI~--- ,.,-- - ....... _" ," -- -..;;:-=-----'
--............... _ lP ,. ,,'" i i ..... - - -'" / ~ ~ ___ ----- _--/ ~t
----- -
o
.... .... -o
o o o o • • o
GC0
K-1
~K-I
@:ro'
f?? o
•
LEGEND
u.s. Borax D. D. H.
Asarco D.D.H.
Total Depth
Incl ination
Soil Sample less than .1 ppm Au
Soi I Sample greater than .1 ppm Au
I"(A - c-, _ ~o 611XTK - I
Vf(A - c. - 2.. _l~ G/VJ"t(- 'L
.,. .. " .. ,,_.~Rw ~ EXPLORATIC
JONES KEYSTONE P
DRILL . HOLE LOCATI
I Exhibit 5 1 ----.-~., __ ...J
SCALE: I" = 100'
1 Merrill 2 New Sawyer 3 Allred 4 Copple. Spencer 5 and Ruth 6 Jones and Laughlin 7 Sawyer Complex 8 Hoover Hill 9 Scarlett
10 Jones-Keystone 11 Southern Homestake
12 Kindley 13 Parish 14 Delft 15 Redding 16 Pritchard 17 Gray 18 McAllister 19 Newby 20 Spoon 21 Pilot Mtn. No. 1 22 Pilot Mtn. No.2
Figure 19. Randolph County Deposits
23 Branson 24 Smith 25 Goliham and Smith 26 Dowd 27 Rush 28 Gluyas 29 Uharie 30 Talbert and Hill 31 Griffin 32 Stafford
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-2-
A lease was obtained and detailed soil (exhibit 3), rock, and pit sampling and mapping were conducted in late 1979 - early 1980. Also in early 1980 core from three holes drilled by Asarco at the JonesKeystone Mine was. obtained on loan and logged (exhibit 4).
Data obtained from Asarco showed only non-economic gold mineralization. From our soil and rock sampling however, it was decided to drill our own holes. A contract was secured with Cementation Corporation of America for core drilling. Two holes were drilled in March 1980 (exhibit 5 - . map; exhibit 6 - log) .
D.D.H. GNJK-l was drilled to investigate the quartz-sericite schist unit cropping out in the south pit of the main workings. The hole was drilled to a depth of 381 feet (linear) at an inclination of 45 0
and a bearing of S20 0 E. Stratigraphic picks made in the field place the top of the quartz-sericite schist unit at 270 feet and the top of the footwalllapilli tuff unit, of intermediate composition, at 365 feet.
A total of 24 split core samples from a 112 foot section of GNHK-l were analyzed for gold. The sampled section includes the entire quartzsericite schist unit. No interval in excess of five feet was found to contain more than 0.03 oz/tn- Au (exhibit 7).
D.D.H. GNJK-2 was drilled to a depth of 485 feet (linear), also at an inclination of 45 0 , and a bearing of S20 0 E. The hole was located approximately 400 feet NW of GNJK-l to examine bedrock underlying soil and soil float anomalies west of the main workings and the continuity of the quartz-sericite schist unit. The tops of the quartz-sericite schist and footwall lapilli tuff units were picked in the field at 270 feet and 435 feet, respectively.
Twenty-two split core samples from a 110 foot section of GNJK-2 were analyzed for Au. Again, the entire quartz-sericite schist unit was sampled. No value greater than 0.01 oz/tn Au was found, however, the entire zone averages 0.007 oz/tn Au indicating a broad zone of noneconomic gold mineralization.
Upon completion of drilling well record forms were filed with the North Carolina Department of Natural Resources and Community Development (exhibit 8).
rhe following conclusions are supported by drill core and assay data:
(1) Uneconomic, low-grade gold mineralization is hosted by a quartz-sericite schist unit, and continues down dip from the- weathered and largely mined-out surface outcrop. This fact is further substantiated by data obtained from Asarco.
(2) Gold values for fresh rock are lower that those reported in the literature for decomposed rock, however, it is not known if processes of supergene enrichment are responsible for the differences.
..
Plate 88. Shaft at Hoover Hill Mine
northeast-trending, sheared and brecciated zones of rhyolite. Older reports indicate that free gold was found along the planes of contact between the quartz in the shoots and the sheared rhyolite. Sphalerite is disseminated through the sheared and brecciated zones in the rhyolite. The color of the sphalerite ranges from reddish black to light greenish brown. Pyrite (auriferous?) is disseminated throughout, generally exhibiting good cubic outlines. Some pyrite has been smeared out along fractures while other pyrite was emplaced with the quartz that healed the fractures. The sphalerite is usually associated with the more fractured zones and is disseminated through the silicified zones and sheared, brecciated country rock. There is massive white orthoclase- feldspar in the brecciated rhyolite that, along with the quartz, has healed fractures . The biotite in the breccia appears con-
,. - - fined to clots or clusters, some of which show minor silicification. Chlorite is minor and is disseminated through the quartz-feldspar matrix. A few pieces of bor
60
nite have been observed in the breccia. The ore deposit is apparently fault controlled.
Jones-Keystone Mine (AuM)
Location: The Jones-Keystone mine is in western Randolph County, 11.7 miles west of Asheboro and 13.3 miles southwest of Randleman. To reach the mine, travel 1.0 mile southwest on SR 1344 from its intersection with U. S. Highway 64. Turn south (left) onto a farm road and go 0.65 mile. The mine is 100 yards S. 50" W. of the old farm road.
Workings: The mine was active in 1852 and was apparently operated until the Civil War. The mine was reopened in the late 1870's but was idle from 1881 to 1883. In 1884, the mine was reopened and was worked intermittently until 1903. A considerable amount of development work was undertaken in the 1930's but
Plate 8e. Open cut, Jones-Keystone Mine
there is no record of production. Mining was carried out in two large open pits and several shafts. In 1968, many large pits and shafts remained along with three Chilean mills and one or more cyanide vats.
Geology: Mining was concentrated in sheared, silicified, felsic volcanic rock. Minor quartz stringers in the silicified zone strike N. 30" to 48° E., and dip vertically. The silicified zone and the workings strike N. 60" E. and the zone dips 80" NW. Pyrite and pyrite cavities are disseminated throughout the zone.
Earlier reports indicate pyrophyllite composes a major portion of some samples. The silicified zones were said to be about 50 feet wide and iron-rich zones exposed were 30 feet wide. Gold was supposedly disseminated throughout the rock and a great deal of it was lost during processing because of the fineness of the gold.
Jones and Laughlin Mine (AuP) Location: The Jones and Laughlin mine is in western
Randolph County, 10.2 miles northwest of Asheboro and 9.3 miles west-southwest of Randleman. The mine is 510 feet due west of the intersection of SR 1408 and SR 1539. .
Workings: One partially filled shaft was on the property in 1967. Apparently, only prospect work was carried out here.
Geology: Prospecting was carried out in a quartz vein enclosed by gray-green to black, porphyritic rhyolite. The quartz is fractured and healed with silica and contains pyrite altering to limonite in the fractures. Pyrite and chalcopyrite after pyrite are also in the fractures. The rhyolite contains disseminated vugs filled with limonite which has altered from pyrite. The rhyolite is fractured, and the phenocrysts, now altered, seem to have
61
road on site the In Follow direction. direction. and then
Worki Civil War feet deep. trench 2 and trend workings hill.
Geol~ zone of f(l dips 7CJ' sericite arsenopyt and silici few relic rock. Epl
foot zont inches b limonite