Bom Ri 4072 Ophir Hill Consolidated Mine Report From 1947

ST...... &; WIJ.aoH R. I. 4072

JUNE

1947

IU~ I ~.

/ ' )07 UNITED STATES DEPARTMENT OF THE INTERIOR J.

A.

KRUG, SECRETARY

BUREAU OF MINES

R. R.

SAYERS, DIRECTOR

REPORT OF INVESTIGATIONS

OPHIR HILL CONSOLIDATED LEAD-ZINC MINE

TOOELE COUNTY. UTAH

BY FRANK

L.

WIQEMAN

R. I. 40'72,

June 1947. REPORT OF

~'{.illSTlGATIONS

'UNITED STATES DEPARTMEl>TT OF THE !NT'ERIOR - BUREA.U OF MINES i.

OPHIR HILL CONSOLIDATED

LEAD~ZINC MINE, TOOELE COUNTY,

iJtrAlI1/

By Frank ~_ Widema.n.5.1 INTRODUCTION The Ophir Hill Consolitiatod mine was oXaminea.,g,1 in January 1944. It was l~cc(')mmend~ that t..l].e mine be explored for the purpose of increasing' rOSC1'ves 6f, lead and zinc ore. The Bureau of Mines began exploratory work at the mine in J'UIle 1944 and completed it in June 1945- The work was planned to indicate ore that could be d~veloped and extra.cted quickly and conoisted of core drilling and trench­ ing. . , ACKNOWLEIG:MENTS In its program of: 0xplo'!'at1on of' mineral depcsi ts, the Bureau of Mines has as ,its primaryobjec"tive the more effective utilization of our minsral rOSO";ll"'ces to the end tha't they', make the greatest 'possible contribution to national security and economy. It 1s tho policy of tho Bureau to publish the facts doveloped by each eXploratory project as soon as practicabl:e at'ter its conclusion. The Mining Branch, Lowell B. Moon, chi of , conducts prelimi­ nary Qxaminations, porf()rms tl10 actual exploratory work, and p;r-opares the final report. Trio'Me,tallurgical Branch, O. C.Ralston, chief,' analyzes samples and pcrf~~n:is boneficiation tests. ',' The work reportod on in this paRor was conducted under the supervision of S. R. Zimmorloy,t regional engineer of the Western Region, and J. A. Marsh, dist..~ict engineer of tho Utah-\'Tyoming district. Subsequent to May 1945, the project was under tho s71perYision of Paul T~ Allaman, chief , Salt Lake City DiVision, Mining Branch. Tho management and employees of the Ophir Develop­ ment Co. wore very cooporativo. Credit is duo to the Buroau ,omployeos, all local men, for the excellent amount of work accomplished. HISTOR!

~nD

PRODUCTION

Tho Ophir Hill Consolidated mine was discovered in 1870 and was operated continuously imtil1926. During this period, tho mine produced moro than 1,000,000 tons of are with a gross value , . 'Of $15,060,000 to $20,000,000.

y

~ho Bureau of Mines will welcome reprinting of this paper, provided tho

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following footnote acknowlvdgmerit is made: Minos Report of Investigations 4072. rf Hining enginoer, Bur.:;au of Minos.

MRcpr1nted from Bureau of

R.I .. 4072 Subsequent to 1926, the International Smelting & Refining Co .. troated the mill tailing from the former operation.' Zinc, which was detrimental prior to selective flotation and was wasted in the tailing, was -the principal metal recovored by the latter milling. ,:, . The Ophir Development Co. acquired title to the mine in 1932 and has maintained intermittent small-scale operation. PHYSICAL FEATURES AND COMMUNICATIONS The Ophir Hill Consolidated mine is situated in the Ophir muu.ng dis­ trict on the western slope of the Oquirrh Movntains, the range in whlch ,the Bingham, Mercur, arid stockton mining districts are located (fig. 1). The portal of the haulage level of the mine is approximately 6,600 feet above sea level. The mine is 9 miles east of St. Johns station on the Union Pacific Railroad by hard-surfaced and graveled highways. The flotation mills and smelters of Tooele and Salt Lake Valleys are within 75 miles of the mine. The climate and vegetation are typical of the Basin and Range province of Utah. The spring, summer, and autumn seasons are mild, and winter is not severe enough to h8.lU.J?er mining operations. The lower slopes of the moun­ tains are covered by a thick growth of sage brush, pinon pine, and junipers. The canyons of the upper slopes sustain growths of quaking aspen and coni­ ferous trees. ' Ordinary commodities, gasoline, and telephonic communications are available at Ophir. Supplies that can not be obtained at Ophir can be pur­ chased at Tooele, Utah, population 3,000, which is 20 miles distant. Salt Lake City, Utah, 65 miles distant is the jobbing center for mining machinery and supplies for the intermountain region. GEOLOGY AND ORE DEPOSITS The Ophir mining district is near the crest of the northerly trending Ophir anticline, which plunges both north l;I.tld south ·from Ophir Canyon (f.ig. 2). It passes into the .Pole Canyon syncline to the east and is terminated against the step faulting along the western flank of the Oquirrh Range. In Ophir Canyon the anticline is cut by an eastward-trending zone of -branching faults, the combined displacement of whose sedimentary beds exceeds 2,000 feot. The older rocks of ,the range are seen ,just north of the fault system in the upthrown block, exposing the Tinticquartz:j..te of Cambrian see. .Tho Ophir formation,also of Cambri~n age, in which the ore bodies of the Ophir Hill mino wore formed, lies conformably above tho Tintic quartzite. The overlying sodimentary"rocks in tlie dist:r1ct are l;i.Iilestone, dolomite, and' shales of Camprian, Devonian, and Carboniferous ages. Many of these forma­ tions have been productive in the Ophir and other mining districts of the Oquirrh and Tintic Mountains.

- 2 ­

Copper Smeller

SALT LAKE ,CITY

R. R.. Gorfiel WESTERN

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Lead Smeller Flolollon Mills.

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COITI/J Floyd • Mining Oislricl:

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1 FIGURE Location Map of Ophir MininQ District, Ophir, Utah.

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rC)I'lIVATION

-/3owman Limesfone.

'----,,..--l-l-Horlmon Limeslone.

so/t) ~-====-­ -51>(1/61 I' Limesfone.

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-Brown I/ein Limeslone ~ 2 bedS, each 6' l,¥111J 9' fJOrlli1JSi -Shale, Limesfone.

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i!JIQCK UP/n Limes/one. - - -5hqlt!fJ.

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_ -Orange J/ein Limestone.

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Limestone.

~~~----Gr"o'ol;ona/

Con/qat, MIneralized

... -(,(uorlzl/e ~ (Combriun)ond ShQ/e.

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5'= . ~~~l';r~~: " ." -NIi'Jero//z ed 5/)Q/e~ LIme Beo'd/n.9 in 12& . .-..

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GEOLOtJlcSeCTION 0 ' P/i'ODUCTIYE

HOA'I%ON$

OPHIR' HILL MINE" OPHIIP~ roOE~E COUNTY, UTAH

R.. I .. !~072 Tho Ophir formation is comprisod of several thin beds of limeRtone separated from one another by relatively thin beds of shalo, which are over­ lain an<;l~unq.erla1n as e. group by shale. From the lowest, in succession upward, the limestone beds are now called the SlBluo, /I '.'Green," "Red,". "Yellow," "Orange," "Black," and "Brown," veins or .bechl.ings (fig. 3). James Gillully2! refers to the beddings as' follows: tho "Blue" and. IIGreen"as the "Copper, fI tho !IRed" as the "Middle, II and the "Yellow" and If Orange" as the "Big" veins or beddings. The individual limestones are 5 to 50 feet thick, and tho entire formation is 250 to· 300 fer;;t thick. Ttto beddings vTith:!,:Q. tho productive block strike N. 60 0 W. to N. 75° W. and dip 150 to 200 northeast (fig. 4), except where \,arpod by tho Cliff fault.

A northward-trending dike of rhyolite, known as the Sacramento dike, passos through the Ophir district w('Jst of the Ophir Hill nUnc. The dike is uninterl~ptod by faulting in Ophir Canyon and has been traced from a point south of Ophir Car~on northward to Dry Canyon, whero it~y join other ignoous masses. The only oth0r igneous bodies observed in the vicinity of tht! Ophir Rill m:tne arc two dikes of 1ccrsantiteo Most of the ore produced. from tho bphir Hill prop~rty has boen minod from a triar~U1ar block 6f. ground ~pproximatoly 2,500 feet in length and 1,400 feot i~ maximumwidth~ Tho blocki~bounded ~y the Canyon fault on tho south, the GJif:' fault on tho northwos.t, and tho Allred. fissure on the east. . . Approximately three-fourths of tho production of tho mine came from long tongue-shaped roplacement duposi ts formed. at the intor.section of the limestone boddings of tho Ophir formation and .steeply dipping fissures. The ::"~t;mainder of the proo.uct1on was milled from roplacoment ore bodies formed ncar the intorsoction of the Cliff fault zone and tho limestones and, to a rather limited extent, ~~e shales of the Ophir formation. The fissures, which strike nearly north-south and dip st~~ply to the west, have, ceyond any doubt, det~mined the site and. extent of the ore bodies 'llithin the bed.di:ngs. 'They have been named the West, Miners Delight, No.1, vTild Delirium, Bowman, Swanson, and Allred fissures (fig. 6). They are narrow J butdi etinct, 8.:\'ld ar 0 continuous an the dip of the beds for Imown distances of a :rra:{imum of 1,600 feet. The fissures are traceable tllrOt!gh the shale and downward into the underlying quartz!to but, !Iith the eXCi3ption of the Wild Delirium. fissur0, have not been explored in the overly,::'tng R0nr:Letta forma-;:'ion. In the quartzite and shales the fissures vary in thiclnLoss from knifa edges to a few inches, and the fissure filling is dissimilar to the ore formed in lime.stones and consists chiefly of pyrrhotite, chalcopyrite, and tennantite. So far as 1s known the fissures terminate to .the north against a fault of some :r.uagnitude lmown a.s the Cliff fault.

2/

Gillully, Jamel3, Geology and Ore Deposits of the Stockton and Fairfield Quadrangle, Utah: Geological SurveyPrcf. Paper 17;, 19,2, pp. 148-151.

-;

­

­

R.I. 4072 There are few faults of any consequence except the Canyon and Cliff faults, which are considered to be premineral. The Canyon fault and its branches strike eastward and have a combined vertical displacement of about 2,000 feet. The downthrown block is to the south. The Cliff fault strikes N. 20 0 E. and dips 50 0 to 60 0 easterly. The fault is normal and displaces the beds about 250 foet. A nearly vertical-dipping fault known as the Big fault strikes east-west. It cuts the beds about 300 feet down the dip from their outcrop and has a displacement to tho north of 40 feet. A number of steeply dipping parallel faults havingthrowa of as much as 5 feet also cut the beddings. The northward trending fissures pass through these faults without displacement. The ore bodies were enlarged near the intersection of the fissures and faults. 'mE ORE

The oro, primarily a hard sulfide lead-zinc-silver ore, is similar in character in all ~~e productive beddings. The pyrite content is sufficient to offset most of the silica in smelting. The

aver~e

analyses of the ore produced from 1897 to 1926 follows:

.

Porcent Ore Tons Ag, oz/ton Pb 1 Cu Mill ••••••• 903,210 5.1::36 4.~b ,1.15 Shipping'••• 204,961 ! 10.94 I lCl.14 i 1.30 ,

4"

No records are available as to the zinc content of the ore, as ziric was a detrimental metal at that time. By comparison with the ore mined sinco 1926, it is estimated that the ratio of zinc to load was about 0.66 to 1. The llLi..ning of shale partings, especially between the ":Blue" and' "Groentt limestones, resulted in loworing the gradE;:.of the mill are. The ore-producod sinco 1926 ha.,s been mined by selective methods and averaged 9.9 ounces silver, 9.0 percent lead, 7.0 percent zinc, and 1.2 per­ cent copper. Open inclined stoping methods are used in' ore extraction. The country rock, consisting of metamorphosed limestone and shale, is hard and rOlluires little or no support by timbering or filling. The ore is shipped to the mills or smel:ters of -the. International Smelting & Refining Co., Tooele, Utah, or tho American Smelting & Refining Co. at Midvale, Utah. These plants are within 75 milos of the mine. MINE WORKINGS Tho mine is workod through an electrified haulage 16vel, and through several thousand feet of drifts and inclined winzes. The lowest workings of the mino are approximately 400 foot bolow the haulago or 1,000 levol.

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FIGURE 5-A. DIAMOND-DRILL HOLES I To 8 incl. OPHIR HILL. PROJECT No. 15-171. TOOELE COUNTY. UTAH.

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FEET

FIGURE 5-8.

DIAMOND-DRILL HOLES 9 To 22 and 160 To 163 incL

OPHIR HILL, PROJECT No. 15-171, TOOELE COUNTY, UTAH.

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80

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SCALE OF FEET

FIGURE 5-0.

DIAMOND-DRILL HOLES 23 To 38 incl.

OPHIR HILL, PROJECT No. 15-171, TOOELE COUNTY, UTAH. w

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SCALE OF FEET

W 400

FIGURE 5-0. DIAMOND-DRILL HOLES 39 To 67 incl. OPHIR HILL, PROJECT No. 15-171, TOOELE COUNTY, UTAH.

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SCALE OF FEET

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FIGURE 5-E. DIAMOND-DRILL HOLES 68 To 82 incl. and 84.

OPHIR HILL, PROJECT No. 15-171, TOOELE COUNTY, UTAH.

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FIGURE 5-F. DIAMOND-DRILL HOLES 83 and 85 To 126 incl.

OPHIR HILL, PROJECT No. 15-171, TOOELE COUNTY, UTAH.

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FIGURE 5-G. DIAMOND-DRILL HOLES 127 To 131 and 164 To 165 incl. OPHIR HILL, PRO"IECT No. 15-171, TOOELE COUNTY, UTAH.

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FIGURE 5-H. DIAMOND-DRILL HOLES 132 To 137 and 157 To 159 incl.

OPHIR HILL, PRO"IECT No. 15-171, TOOELE COUNTY, UTAH.

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FIGURE 5-1.

DIAMOND-DRILL HOLES 138 To 153 incl.

OPHIR HILL, PROJECT No. 15-171, TOOELE COUNTY, U"mH.

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FIGURE 5-J. DIAMOND-DRILL HOLES 154 To 156 incl.

OPHIR HILL, PROJECT No. 15-171. TOOELE COUNTY, UTAH.

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Composite Map, Ophir Hill Mine, Project No. 15-171. Tooele County. Utah.

View of Lion Hill anticline from opposite side of Ophir Canyon. Town of Ophir is in the bottom of the canyon.

Looking down the dip into a stope below the 1,000 level. Note man against the left wall and the regularity of hanging wall.

Bureau of Mines diamond drill working in a stope below the 1,000 level, Ophir mine.

Underground hoist house and ore bin on the 1,000 level, Ophir Hill mine.

View of shale rib between Green bed and Blue bed in a stope off the 1,000 level, Ophir Hill mine.

Some water has been encountered' belqw.the haulage. level, and the workings below the 1,200 level are flooded at :t:q.e pr~E1ent time. (1945) ... ·Pumping· equip­ ment is installed at the mine, and the lower levels can be unwatered readily when it is desirable to do so. BUREAU OFMINESmLDBATION The Bureau of Mines project at the Dphir Hill mine was begun in; June 191~4 and ~ded in June 1945. The exploration was plarned to investigate possible ore cccurrences that could be developed and minec. quickly for war uses. . The exploratory work consisted of drilling 165 core-drill holes from underground stations (figs. 5A to 5J, incl.). The depths of the holes ranged from 11 to 180 feet. The total distance drilled was 8,537 feet. An average of 19.055 :oet per drHl shift w'as attained. No cementing or casing was necessary. Approximately 1,720 feet of trenching along favorable outcrops was done bymechanic13:1 and hand .methods. All ore-bear1r..g and mineraliied sections of core from :the drilling wa..s submitted to the Salt Lake City Division, Metal­ lurgical Branch, for analysis. No metallurgical testing of the ores was done as the are is amenable to at mills and. smulters in tho vicinity of the mine.

trea·~nJ.(}nt

,

In general, the Ophir formation at the Ophir Hill mlne is of such charac­ ter tha~ core drilling results in good core recovory and low diamond costs. Bocause of the crushod 9 (lTIdition of the rocks in the vicinity of the Cliff fault, core recovery was less and diamond cost more. than in ather parts 01' tho minco Because of the abrasive nature of the quartzite, tho diamond cost for drilling it was lUgher than for any of the rocks penetrated, but the core recovery was v0ry good •. Tho location, dip, boaring, and. analysis of drill holes is given in the following tab~G:

TABTJE 1. - Showing location and

analY8~.s

of diamond-drill holes

00118.11 Hole No. 1

I

Pb

Percent : Zn

.3· 3 i 2. i

2

1264N, 84w

73

5.2 j 6.2 12.3 ~4.6 37.5-39.0 27.3 ! 3.4 2.2 I D.5 .39.2-41.8 4.5- 5.7

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3 l264N, 84w

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72

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.17

13.D-l~.8

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i 38.3-40.5

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12.315.3 .27ITr'16.2 149.0-49.8 5.917.D ,17 ITr'1 2.8 5.8 . 5.1 I 2. 05 I Tr .110 .7 j 55.8-59.4 i ! I I I

R.L 4072

TABLE

1. - Shmring 1c;:>cation

and

ana,lyses of diamond-drill holes (Cont'd.)

Oz. Ag

Au

37.51~,.5-25.5!

5

.

126.0-27.0

1272N, 85"1 'j 5600 S. 20OW. 1-70° I 29 . I,i No ore 'I ,I," i . 7 1321N, 78W 5600 I s.lOOW·i-77°114 ' JNO ore.

6

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! I 24, I 9 I 888N,294E 5536 I West -r45°1 44 I I ' ii i !

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I 893N , 295E I 5534 IN. 30OW. !+36

0

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39

5530 I N.21 OW. : -17°! 29

89LfN ,297E

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12 .

894N,'297E

13

,89!+rJ,297E

5530 I N.21~. -2'5°~ 18 , I ' ! . '!. ,; 5530 1l:}~21CW. -10°f 18

14

894N,298E

5530 II"N.10v.W. _20° 23

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15

'!, 8~N.',294E I

I' , . 5531 i N.6:;OW. _4° "

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42

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'i Barren iO

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19

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20' 1~9~~129~'E 21

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1563

890N,294E

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P..1. 5

,3. 0 - 8.0! 16.41 4. 71 .52 ! -

~1.7

i 0 ,. 6.0;. 7.51 4.7:I .10 0.011'.7.0 I,!

0

i

I

I 5.9

0.61I 0.6, 1.6; 5.5j

.92 I .65· .0, I .03 I

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~5. 6

'1

!

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- 6,0 i 10.2, 7.11 .24 I

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3.0 . 5. 6 , , 3.0- 8.,0 12.2 1 1 13. 0 - 15.0 15.3i i 15.O-18.0 5. 0 1 0

"I

-

"

131.5-38.0,

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5. 6 1 5. 1 j .15

,.., • 3 • 1 9. 0 1.::

,I

.1 6.7 12.0 I

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i 3.1

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.05' .36 I .13

i 2.5 I

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5.7

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4.0

.50 10.005i10.7

I .30'i-I 8.

14. 7 ;I 6 • l'

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4.3~0.30

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54

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18.0-22.0 36.0-40.0

3. 8 1 !Tr. i 1.7 3. 6 \ 5. 4!0·30 0.005: 7. 2

i, ,5/539

N.81ow·f +9°, i 21~

14.3-20.0

9.5: 6. 9 0.20.01 \5.5

5530 N.81OW.j+14°! 26

0 - 4.0 10.0-16.0 16.0-18.0

7.8! 6.7; 0.10 .005,6.3 4.21 5.8l0.10 . . 005i 3.1 1. 7! 2.3: 0.10 .01 i 2.6

I 892N,294El 55321 N.63OW.i+7°

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0 - 6.0 I 2.21 1.9 1 0.30 ! 1.4 2 0 ;24.0- 7. ! 4.21 4.7 1 ·30 10.00.3.1

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INo ore

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11

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1

8 1321N, 76W 1 5606 N. 500];. i+60 0

10

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.31 3.010.17 Tr. 2.1 I !

8.01 3.9\ ,.2510.01\5.0 5. 1 1 2.2 2.. 45 10.0115.3

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R.I. 4072.

TABLE 1. - Showing location and analyses .... of. diamond-drill holes (Cont'd.) }: ;

.,

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l

i'. I "3. E\ I 15.90 I

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I 2·5 I

\17. 2 I 4.1 I' 0.4 I 0.7

- 7-

R.I.

4072

TABLE

1. - 'shbwi~ iocat:ion andanaly'ses'of'diam:orid.-'d.rlil ho1e~ (Cont d. ) I

_I

.....

No. 43

Collar ' l ! Assay Percent e1ev. , ' , lDepth ,'interval, ' Coordinates feet . Bear ins Dip feet ' :feet' Pb lZn .! Cu, 2000N,543W 56 21 N.20VW.! +65 u No ore 30 ;

44

2000N,541W

Bole

I 5621

N.200E. +65 0

+65° j 29 126.4-28..2

45

1997N,546w

5621 West

46

1994N,543W

5621 S.12OW. +63°

31 126.7-29,,3

47

I 1994N, 541W

5621 S.30~. +55°

38

48

1999N,5 41W

5613 , N.15°E. I -69°1

19

49

1999N,444w

5613 I No 550W 01 _60 0

I

15

l

1990N,58ow

50

1987N,58ow

51

I

' I I 56181 N.82°E. +57° I

. 5618

I

I

!

I

s.68°E. +57°1

iI

5.0

705\

6'°1°;80

Tr.

3.1

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I

ore

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I No

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Tr., 4.2

I I 4.7:'4.4,0.20 Tr. I j

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I

3.0- 5.5, 3. B! 1.2 °.50

50 ;10.4- 13. 0 15

Tr.

INo L

I

9.71°. 75

,

J

i

!

ore

'i

I

Oz,. ' Ag

I 11.8, !I No

!

I

Au

'. No ore

30

I

....'.'

I i

2.0

I

I I

I I I 6 8 f 2 5 112200433N9C1\T',,4487: i ' 5611 I N.40::.! ,-33:! 6:; [3 .5-3 .31 0.21 0.3 0.35 Tr. 1.2 _11 vw 5610! S. 72 .L~.I -41 I 39 125. 0 - 27.7 I 3. 2j 3.0 0.45 I Tr. 1.4 53 I I !30 • 0 -32 .4\ 7. 41 6.0 0.2 5 Tr. i 3.0

54

5610

2040N,4TlW

I

_48°!

I

'I

N.15~·I·

-51°1

55

204IN,478W

5610

56

207IN,472W.

5611 I S.58~'1 -35°! ,

'.

'II

I

I

I

'

I

I

N.84~.11

'

I

'['

i

i

51

!

! No

I 37 ;

I

o~e I I .1 ore I, : I 1

I No

I

.

82 '59.0-63.5 I :6:;.5-:68.0 I 168.0-73.0 I i73.5-78.5!

'I

2.2f 4.0! 10.1i 9.31

1.310.22 4.01 0.20 7.7: 1.17 6.011.30 I, i, No o~e

2075N , 474w

5618\ N.150E·1, -70° I 52!

58

2064N,473W

5618: S.500E'i -49°!, 60 :31.,5-35.7!, 7. 6 \ 20 5,' L35

I

59 i2014N,491W

I I

, i2013N,h54W

!

I,

!,

..

I

'i

j

i

II i

II

I

'I"

I

,.!

i

I:, 5603·!·N.48D];.1 . { , I , 1

!"

,I

I I

.

I I!

11

I

I'

.

56031 N.48°E.i -35°1 I'

:I!

I

!

5625IS.20D]:.!+610j

I

60 12013N,454W

6i

Ii' ,

I

31 i

I Tr. I 2.6 Tr. [ 2.4 Tr.11}.2 Tr. i 7. 8

I

57

'

,I

1

.[

INoore'

I

I

Tr.

.! I I

! 12.4

I . '

65! 2.5-:-,6.71116.5 10.1!1.45 1 Tr.l ,I I 17 . 4 -2 4 .~ h j 1.21 1.7,0.7 I 2 Tr.,I 1 I 1'45 .0-: 50.0; 2'~1 0.811. 77 1 , , 50 • 0 -55. 0 I 1.:/1 1.0,3·53 I Tr. , i 15'5·0-59.0 I 7.9 4.9: 0·52 I Tr.: I I I ill -45°1 40 10. - 7.0, 9.3 1. 51\2.34 , Tr. , 1 I; \2~.0-28.0I' 0.1 O.4,.5.35,Tr.', 12 0 32 0 4 3 4 6 3 05 I !. . i • I .!. J Tr.! - 8 ­

Tr.!

8.0 2.7 7.3 13.. 2 4.8 33.2 4.7 4 •0

. .' R.I. 4072 ,

. . ._

".

'.OM

TABLE~. - Showing 10~a.tion and a.na.lyses of ~ia.mond-driii 'holes (Cont1d.} 'C ollB.l~1 ' , , ... I .. , Assay, e1ev. , IDe:pth, interVal, \-...,.......;.P.:;;.;er:;.;;c;.;:;e;::.nt.::;......."._~-:O::.:;z:.:...-.,...._ Role

No. Coord1nates feet Bearing D:1,:p f,eet feet Pb Zn Cu Au Ag 62 2013N,454W! 5603 N.48ClE. -55 0 28 0 -4.0 .'8.9 3.6 0~92 Tr. 9.0 .., , 8 . 0 - 13 .0 1.90.3 .85 Tr. 4.6 I' " 13.0-18.0' 2.2 1.3 .26 Tr. 2.6 18.0-23.0 1.2 6.5 1.68 Tr. 2.:3 . 23.0-26.0 L8 3.9 2.55.' Tr. 1L 7

,

63

64 65

I

I, 5603 N.85~. -310 / 1201JN,4;314 I· 5603 ! N. 6,"E. -31°1 ' ·1 ' 'I' I I2007N,450W I' 5603 ~ s.600E·I- 63°1 2010N,452W

I

66 12bo8N,1'56w1 5603

S. 73"W·1 "45°1

71

1.6- 8.0 10.1 6.0 .94 Tr. ,44.0-48.0 5.? 1.3 1.57, Tr.

5.2 13.0

75

4 • 0 - 9.0 14.5 6.9 153.6-60.59.5 8.5

.85,Tr. .58] Tr.

9.1 11.9

38

10. - 8.0

6.0 4.1 1.12 ITr.

7. 6

I

1

I

67 '200BN,450W! 5601 S.66°~.1-130I ! t 68 1697N,165W 5612 N.25°W·1+55 55 ore i I I 69 1709N,16ow I' 5609 N. 6~. 0° ; 140 iNo orri I

I

I

°1

INo

1

,I

~745N',~2OW~: 5617 N.60~. +57°1

70

I

56171 N.57CW. I +42

71 11747N,122W ,

°i

45 INO

I

44 NO

I

72

1752N, 88w . 5613 S.57OW.l oo

73

1750N, 87W!I , 5612 s.87~ . ..:22°1I

50

r o

ore

o~e

1

II

I

1760N, 90W

I'

l

5610 IIN. 470];. I -57°

I 7~"E"-45:1

175911, 8:fo1 . 5610 N; 79

176oN, 90\1.

80

1616N,109WI 5616: N; 60E'i+53°1

5617! N.88"E •. +37 1

I·

16H3N, lO:foI1 56161 N.50

!

I

I

I

I

I

I

"ll·1<43°1

43 No' ore

13.7

'11

Iii I

I

1

.1

/.

I 1

II

II

81

J,

7.3

I

59 INO ore

I'

77

,

,I.

ore

1760N , 9OW •. 5613 N. 47~. -45° 134 INO ore 75 '.1760N, 9& 5613 N. 47~. _20 0 63 I!NO ore , , I 0 0 176lN, 92W 5617 1 N. 30 E. _20 86 ,No ore I 74

I

18 j 10.0':'11.0 'I, 1.2 I 0.1 1.07 j Tr. 47 I, ,O~'. - 7.0'112.0 4.2 • 65 Tr.

I

I

I

I

,

I

:1

I

53 ,36 .0-39.0 I 11.0 6.9 0.27 Tr. I

44

,.

INo ore I

,

I

I I

I

_I

58129.0-3,o.5! 7.6 ).3 1°.52 /Tr.

4.4

I 3.3

42 120.0-24.01\17.3 10. 7 !0.95jTr.! 7.6 133.0-37.0 3. 0 3.010.11 ,Tr. 1 1.0 !40.0-41.5 I 3.1 5.9 1°.15 !Tr. i 1.0

- 9 ­

•

R.I. 4072

TABLE 1. - Showing location and analyses of diamond-drill holes (Cont'd.)

•

Assay ' Collar " Depth, interval, Percent Oz. Hole [ elev. ~ No. Coordinate's feet 'Bearin'g Dip feet '''feet f--:P::'!'b";;;";';:'::Z~n';;;':"'-=C-u-+-A':'""u~';"'A::-g82 1590N, 102W. 56~6. 8,.16"'W. +52'-' 45 No ore

84

1642N,173W

68 ,63.5-64.2 12.3 2.7

85

1572N, 4,5W ,5?04 S. 8'\1 _48 0

39 INo ore

86

J..57 4N, 45\'1

5604S.39OW. -50°

34

87

1577N, 43W

5611 N. 50 E. +550

47 22.0-24.0 17.5 24.0-29.0, 11.4 31.0-36.0 5.2 36.0;40.0 2.7 140.0-42.0 I 5.3

!

II 5.0-

~.30

Tr.

7.0 16.7 7.5 0.92

~r.

1.1 10.5 0.1 5.1 5.2

.17 .14 .11 .08 .10

7.4

I Tr.

Tr. Tr. Tr.

5·2 3. 6 2.2 1.3 2.8

0.9 0.5 .07 Tr.

.1

Tr.

!

88

32 129.0-30.5

1577N, 43W

J

N.

4OW. +55 0

89

1577N, 45W

5611

90

1572N,

5604 IS.25 OW • -55°i

91

1578N, 46w I 5611 N.35 OW • +3 8°1

1~5W

I

92

1574N, 44w

93

1553N, 66w

5611

IN • 1"w.

IN.

INa ore

33 No ore

53 12.0-15.0 2. 5 1.8 0.14 136.0-39.0 14.1 6.5 .07 i42.0-47. 0 11.6 1 7.8 .06 I 147. 0-50. 5 4. 4 ' 2. 5 . 09 I

5604 S. 20 E. _36°1

,

1553N, 66w

14

0

+28 i

I

I

95

1605N, 35W

97

,1609N, 31W 160SN, 2fM

98

1581N, 40\f

96

5.8

I 0. 0-5 2 .5 I! 76 !5 '54.0-57.0 158.0-61.0

1.7 2.0 1.4

I I

.101' Tr. .35 Tr. 1 5.2 3.1 .06 1I Tr. 5·9 5.2' . 05 Tr. 4.2 11.Q .04 Tr.

~

1'

I

I Tr.

.

5604 !N.55 OW • +3801 em +39 01 5612 iIN.I0~~.

57 No,ore 37 No ore 5603 IN.58ow.1 _24° 57 No ore - 10 ­

I

.4

23 !10.0-12.0 0.7 2.5 115.0-16.5 10.6 5.3

1

1

Tr. Tr •

1"w. +55 0 1 38 21.0~22.8! 6.9' 5.2 .. 191 ,27.0-28.0 i 3.3 6.1 .22 I I i30. 0-32 •0 i 22. 6 3. 0 I • 141 5611 N.55OW. +45 01 55 26.0-27.0 1 3.9 1 2• 1 1 .1~ 30.0-34.0 I 1.8 11.3 .10 .!0.9 .12 I 34.0-37.01'2.0 j

5611

0.5 4.4 3.2 1.4

Tr. Tr.

Tr. Tr.

I Tr. Tr.

I

'jl I

I

I

I

II

!

!

!

;

'

I I'

,

Tr.

II

I

1.9

.4

3.2 1.1 1.2 1.3

R.I. 4072

TABLE 1. - Showing location and analyses of diamond-fu'ill holes (Cont1d.) '. ".'

HOl~'~ ~o.

99

...

~i!;~

.. . .

Depth "i~~:;~~i; .

Coordinates,' feet Bearlnp; m.p ,15811';,. 40w '15603 N•. 5~'I-l'U

~bO: /1581U;

"Perc'ant

Oz.

feet

:. ' I .

feet Pb ,.' .Zn Cu 51 :56~5-3.7.-~" ,17.9 ;t5~'0 0.·37

Au' Ag Tr. 6.7 Tr.1. 3

• 06

40.0-40.8' 3.; ;4.0

400: I 5604 N:;58'?w.· - 4°1

50 44.0-46.2

1.8 3.2 0,05 Tr.

0.6

101· 15Bll~; _400, '5603 N.:5~~. -320 ,

50 25 .. 0-27.0 27.0-30.0

·3;.5 2.2 6.5 4.2

.10 Tr. .12 Tr.

1.4 2.4

102: i1580N,. 4~.1 51£04 N.60"w. -34 0

35 19.7-21.0

3. 9 3· 71

. 06

1.4

45 12800-2900

9.4 14.5{ .25 Tr.

60

'3·7

I

103 '1580N, 40w

I 5603

101~

I1

151/{N, 66w I

105

I

I'N.68OW. _2301

5' 6 03 '18.5aE. II -50 01I

I I .' ~547H,6'"M I 5603 IS.I0~~

.

I

_40°1

I

I

I.

106 1547N i 66w

5603 S.

5~.1-3001

107'154711, 66w

i 5603 . S026 E:j-42

108 1553N, 60w

iI

0

5603

109 1553N, 60w ) 5603 I 8:'70 0 E.

I

i -52~)!

I

I

°/

I , ! 155 2N , 6,w I 56061N042OWoioo

112 15401'1, 96"

1

' I

110 1555N, 64w . 5603' 'S. 72~. ) - 51

ill

0

S~72oE'1 -45°! 1

5_0- 8.3 11.4-12.1

i

I' 5604 IN0250Eo : _10°1

3.51 .

l .

~·.5- 6.5 20.2/13.0 f .16 6.5- 8.0 10.816.9 1 .17 I 8.0-12.0 16.5 19.412.15 '[12.0-14.0 14.918.2]1.80

2.6

2.5

Tr. 7.4 4.1 Tr. Tr. 10.1~ Tr. 9.9

I

2,3 111.5-18.0

3.2

.32 Tr. 6.4 6.0, .20 Tr. I

18

Tr •

I

4.2

4.8 3;51 .57Tl'.

I ' I

18 No are

i

!I

42 No are

~: IN:o;~e7~51402 ":3/Q.22 1:..

Tro

2.2 4.5 7.5 4.0

7.5- 9~O 3..6 , 4 . ·51 .16 Tr. 10.0-12.5 14.4' 9.3i .8, Tr. 14.0-16.0) 9.2: 7.11 .32 Tr. I

55 No are.

51 27.0-30.. 0 .3.0 .00110026 Trol 13~ .. 3-35.. 9 1. 7 .1!. 21 Tr. I'

113 I' 15 401'1, 96w

! 5606 !110

114 ,1540N, 96\1

1

5"Eol +210, 45 18.8-19.8 5?oh No 50E 01 _2° , 45 No are

115 i1494N, 80W I 5607 N0470Eol·+400! 116 I1491,N ,SOW 5607 N. 78°E. : +38 0 I 117

1147~r,

82w

5601 S.55 Ow

.! -570

22 No are i

17 INa are

i

1

- 11 ­

31 LNo are

i

1.21

'I'

I

08, 0191 Tr0l 1.5 '1 ,

I

I

I

I

I

R.I. 4072 and.~aa.a1Yseso:f..

TABLE 1. '':' Showing location

...

diamond:-dr111 holes. (Cont d. ) I

"

,

".""

Collar Assay Role o " e l e v ; , De:pt:):l, in~erva.l,· l'ercent No. Coordinates feet Bearing Di:p feet feet Pb Zn Cu 118 1475N, t)2i{ 5601 ~.30VW. -56 0 37 17.3-19.8\'4.0 3.8 0.16 20.0-21.0 5.2 3·.8 .15 23.0-23.8 I 4.0 5.8 .12 25.0-28.0 5.6 6.3 .32 1+9 147~N, 82W 5601 S. 7OW. -560 59 16.8-17.8 7.6 0.7 1.00 I

18.0-19.0 I 4.5 0.2 .77 ', 21.0-22.0'1 2.51 0 •2 .40 i I ·27.0-29.0 5.816.3 .34 I i 29.0-30.0 2.0 I 2.31 ,,17 ! ?3. 0 -35.,5! 2.4\1.6 I ·30

I

I

~ ,I 5601 iN.6B'\i. _520 1 35 121 14051'1, 83W I, 5600 IN.85OW.!-83° I 25 120 14751'/,

12~' 140'5N,

I I ,! 83W I 5600 I N.45OW.I-83° i •

I

I

?·I-72:!

123 14Q6N;,83W 1,5600 1N.43 124

1-1~12N) .7OW ~5607 ,I N.48 I

125 1412N, 70W 126 1595N, 58ttl

I',

I

!

I

I I

I

I

+42

I

I

1,

i 0.8

30 110.0-12.0

I

I 4.0-

5.0 0 I 5. - 7.0 7.0-10.0, !11.0-16.0j

6.0 8.4 3.4 19.3

, 1

I

114.1

i 6.8

I

:

l

0.6 11.10 Tr. : 1.3 8.71.• 16 6.6! ·50 3.0,[.18 7.5 1.10

I

I

5610 North II

I +420!

E. "

'I

78ON,500E! 5658 I North! _5p

!

I

46 INO ore 1+8 IINO ore I

i

99 INa .. I 30 INa I 95 iNo

I Tr •

Ii

1 Tr.

I Tr.

I Tr.

I

! I,

IINo ore

'

162.0-63.5' jNo 9re

,IN0, !",e

1.2

3.6

1.0

9.6

5.6

1

I j'

I

I

I

I

I

.

ore ore

1,

'I

ore

'48- 'INo ore

• 12' •

I

-,

70 NO ore

i

o

I:

I

, 1 a i 01 .130 1632N, 95E ; 5604 " N.~2 -78 I . 131 1632N, 95E 5604 !N.62oE.i - 620 1

66 I . N. 60Or.. 132 76 "(N ; 540E . jj 53!, .v..iI -7 40 iI 158 I I I 6 66 133 7 7N,54.oE 15 3 iNort!) ! -7401173 0 134 76"(N,540E I! 5663 ! North I _68 I 78 o 135 76m1, 540E ! 5663!'N. 75"1':. _20 ! 102,

136

2~10

I i i

127 1.544N, 22W j 5603; S.43'\1·1-57°[ 1 I 'j 01 128 1632N,. 95E 561q N.37~. +55 129 1632N, 95E

I

560 7\', N.630E" +420 1 26 I J4-.0.;.11.0 113.8 11.310.181 Tr.

I 56,07! N.42·0E·i +40°1

'i

11

24

Tr. 1.9

Tr. 2.0

Tr, 2.0

I Tr. 2.5

Tr. 15.6 Tr. 2.3 Tr. 1 3 • 7

Tr. 11.7

Tr~ i 1.4

Tr. 12.1

5.0- 6.5 I 7.91 2.4 I Tr. I I i

6.5-' 8.0,,1 8-51, 5.0 1.85 I Tr_

!

! I

E' i

iii

No ore

Oz. Au. Ag

'I

I

I

I

I

1 I

I

I

1

j

j

!

I

1

1

I , :

01 0 3.017.710.2.0 1 • ; 2.4 'I

I

'I!

I'

I

III

i

,I':



R.I. 4012 TABLE 1. - Shawins location end analyses

of diambnd-drill holes (Cont'd.)

Collar i Assay Hole elev." lDepth, interval, No. Coordina.tes feet Bearing Di:p I feet feet 137 715N , 455E 5070 N.34 oE. /1-660 ! 110 1N0 ore

-51°j

41ON, 855E 5610 S.20CW.

139 140

405N, 845E 5616 41BN, 993E 5610

-23 0

102 ' No ore 166 INa ore

141

365N,1035E 5608 S.30~. +15 0

14 INo ore

N. 35~. +59 0 I

N.62~.

81

~o

138

ore

I

I

-=-.;;.,p.;;.:er::-;c;..;e::r:n~t_'-tl~:--.;;.oz~.:--

11-'

Pb

j

I

Zn

Q~

I

I

Au

I

Ag

I

I

I

i

142 376N,1036E 5608 N.15~. 1+140 72 ilNO ore 0..' 01 143 373N,10;OEl 5608 rL39'w'I-14 I 14 1 4•0- 7·0 8.0 0 144 3731i,1030E i 5608 N.31OW I 22 No are I

0 145 366N,1028EI 5608 N.21OW· -I0 7 No ore

146 366N,1a;?8E' 5608 N.19OW. ,_lOa! 4 No ore

'j-6

i

I

I

152

366N,1028E 5608 N. 1"W. !-100 16 INO 366N,1028E 5608 N. 5OW. !-1001 10 ,No I I I

366N,1028E I 5608 jN. 5°W'1-5° j 5 No 366N,1028E1 5608 ;N.I0OW. 1_14°1 7 No j , ;52N,1087E 5608 \s.45 OW • 1+39° 40 INo ' ! I I '

350N,1095E,/ 5612 ,~.600E. [+30°1114 INO

153

354N,1092E! 5608 !N.23°E'I+4°

154

229N,1270EI 5615 IN.looE.I+37 °1

147 148 149 150 151

I

I

155 ' 242N, 1270E :;615

156 157 158

Is. 73"E. /+2

0

217N,1266E 5612 !s.42°W.l oo

I 114 1

ore

ore

O:l:'e

ore are

554E[' 284E 284E 284E 284EI 20EI 20E

1

5605 5606 5606 5607 5606 5608 5608

,

0.005

I

~.7

I

I

I

j

II

I,

I

No ore

I

64 No' ore 184

! 135

N. lCW.I-3° 1165 S.25OW.II+500! 44 0.. 0 I 8.67 w. ;+23 15 S.67OW.I+23° 125 8. 55OW. 1+30o! 111 N.87°E. '+10 1189 N.700E. I'

6.~ 0.15

I

ore

liNe

ore

No ore

I

I' 587N, 56lEi 5609 IS.73~,+59()1 41 No are

590N, 560E : 5609 IN.13°W. \+5601 35 No are

159 623N, 160 757N, 161 757N, 162 757N, 163 757N, 164 1512N, 165 1514~

i

,NO ore !No ore I,

INO ere No ore

No ore

No ore

,No ore

I