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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  04-Apr-2022 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name KODAH, KODAH 1-2, GWP, LOUIS 5 Mining Division Liard, Omineca
BCGS Map 094E034
Status Showing NTS Map 094E06W
Latitude 057º 22' 21'' UTM 09 (NAD 83)
Longitude 127º 16' 14'' Northing 6360174
Easting 604002
Commodities Gold, Silver Deposit Types H05 : Epithermal Au-Ag: low sulphidation
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The Kodah showing is located approximately 6.6 kilometres northwest of the Lawyers mine (094E 066), some 280 kilometres north of Smithers. The showing lies within the Omineca-Cassiar Mountains at the southern end of the Toodoggone gold camp. The Kodah showing is situated within a Mesozoic volcanic arc assemblage which lies along the eastern margin of the Intermontane Belt, a northwest- trending belt of Paleozoic to Tertiary sediments, volcanics and intrusions bounded to the east by the Omineca Belt and to the west and southwest by the Sustut and Bowser basins.

Permian Asitka Group crystalline limestones are the oldest rocks exposed in the region. They are commonly in thrust contact with Upper Triassic Takla Group andesite flows and pyroclastic rocks. Takla volcanics have been intruded by the granodiorite to quartz monzonite Black Lake Suite of Early Jurassic age and are in turn unconformably overlain by or faulted against Lower Jurassic calcalkaline volcanics of the Toodoggone Formation, Hazelton Group.

The dominant structures in the area are steeply dipping faults which define a prominent regional northwest structural fabric trending 140 to 170 degrees. In turn, high angle northeast-striking faults (approximately 060 degrees) appear to truncate and displace northwest-striking faults. Collectively these faults form a boundary for variably rotated and tilted blocks underlain by monoclinal strata.

The Kodah showing is underlain by andesite crystal tuffs, volcaniclastic breccias and hypabyssal quartz trachyandesites, part of a larger package of Toodoggone Formation volcanics assigned to the Metsantan Member. Other lithologies of the Metsantan Member include mostly latite lava flows with interflow lahar, and a mix of epiclastic and pyroclastic rocks (Bulletin 86).

Locally, brecciated quartz-chalcedony veins host gold and silver values. Numerous other pyrite-bearing quartz±chlorite veins, up to 0.5 metre wide and hosted by andesitic crystal tuff, silicified tuffs and andesites, are reported in the area but generally carry low gold and silver values.

Exploration since 1971 has outlined a northwest-trending gold and silver geochemical anomaly, coincident with a VLF electromagnetic conductor, airphoto lineament and four significant grab sample rock assays.

In 1982, five samples of brecciated chalcedony from the Kodah occurrence area yielded values from 17.83 to 29.14 grams per tonne gold with and 973.7 to 2142.9 grams per tonne silver, whereas two other samples (6+00W-21+00N and 0+30W-21+50N), taken to the northwest of the previous samples, yielded 7.20 and 3.77 grams per tonne gold with 61.7 and 34.3 grams per tonne silver, respectively (Assessment Report 10952).

In 1989, two trench samples (2C and 3B) assayed 0.68 gram per tonne gold each with 9.2 and 10.9 grams per tonne silver, respectively (Assessment Report 19114).

A trenching program, in 1990, was conducted along a fault coincident with the geochemistry anomaly. A total of 34 samples were collected from three trenches. Trench 90-3 was excavated along a fault for 75 metres but intersected only 20 metres of bedrock. The bedrock was composed mostly of grey, pyritic (2 to 3 per cent) quartz vein material with less than 1-centimetre wide vugs and chloritic crystal tuff fragments hosted in a fault gouge. The highest assay from trench samples was sample SF-K-26, a 1-metre chip, from trench 90-3. This sample assayed 2.22 grams per tonne gold and 4.6 grams per tonne silver, while a grab sample from the same trench yielded 7.2 grams per tonne gold and 83.8 grams per tonne silver (Assessment Report 20629).

In 2018, a rock sample (Y445053) assayed 1.48 grams per tonne gold and 58.7 grams per tonne silver (Assessment Report 38447).

Work History

During 1971 through 1973, Kennco Explorations Ltd. completed programs of silt and soil sampling, a 34.7 line-kilometre ground magnetic survey and a lone drillhole, totalling 16.5 metres, on the area as the Kodah claims

During 1979 through 1982, SEREM Ltd. completed programs of soil and rock sampling, prospecting and geological mapping on the Kodah claims. Also in 1981, Great Western Petroleum completed a program of geochemical (rock, silt and soil) sampling and geological mapping on the area immediately east as the GWP 27 and 28 claims.

In 1985, SEREM Ltd. completed a ground electromagnetic survey on the Kodah 1 claim.

During 1986 through 1989, Cyprus Metals (Canada) Ltd. completed programs of geochemical (rock, silt and soil) sampling, ground geophysical surveys, trenching and geological mapping on the G.W.P. and Round Mountain claims, located immediately to the east. Also in 1989 and 1990, Cheni Gold Mines Inc., formerly Cyprus Metals, completed programs of trenching and rock sampling on the Kodah 1-2 claims.

Between 2003 and 2006, Stealth Minerals conducted MMI soil sampling, PIMA spectroscopy analysis on rocks and prospecting in the Moosehorn, Kodah and Round Mountain occurrence areas. The MMI line was run to the immediate west of the Round Mountain West showing in 2006.

In 2004, Stealth Minerals completed PIMA spectroscopy analysis on the existing 1986 and 1987 Diamond Drill Core to examine alteration (approximately 450 samples). In addition to the PIMA analysis 11 surface rock samples from outcrop and float were collected for geochemical analysis. This work identified two phases of alteration possibly associated with the Attorney and Cliff Creek Faults. Primary alteration appears to be chloritic and potassic while the second phase is more argillic (illite, kaolinite). Anomalous gold in the 1986 and 1987 drill core appears to be associated with quartz veins, quartz veinlets and brecciation. High temperature (alunite, dickite) alteration was noted on Round Mountain. This alteration may have occurred with the cracking of the Cliff Creek Fault or from more local faulting. Both the Cliff Creek Fault and the Attorney fault which trend northwest through the Louis Claims are known mineral producers (Baker Mine and Lawyers Mine respectively) the alteration work may suggests that fluids carrying mineralization may be associated with these faults (Assessment Report 27661).

The 2005 exploration work on the Louis claims by Stealth Minerals Ltd involved field mapping lithological units, contacts and alteration patterns. A minor amount of rock sampling was completed during 2005.

The 2006 exploration work by Stealth Resources on the Louis claims involved field checking lithological units, contacts and alteration patterns, minor prospecting in the Kodah showing area and two lines of MMI Soil geochemical sampling. These lines were completed in a northeast direction as to cross structural and lithological controls to mineralization identified to date on the claims. One of the lines runs to the immediate west of the Round Mountain West showing (094E 159).

The Round Mountain showings and the Kodah showing (094E 068) were contained in the Louis property of Stealth Resources in the mid-2000s, By 2014 these occurrences were contained within a claim block held by Phoenix Precious Metals Corp as part of their Lawyers property (094E 066).

In 2018, Benchmark Metals Inc. and PPM completed a program of geochemical (rock and soil) and biogeochemical sampling, a 1272 line-kilometre airborne radiometric survey, eight diamond drill holes, totalling 1493.0 metres, and 30 rotary drill holes, totalling 2623.0 metres. This work focused along the Layers mineralization trend, which is greater than 3 kilometres in length.

In 2019 and 2020, Benchmark Metals Inc. completed programs of geochemical (rock and soil) and biogeochemical sampling, ground and airborne geophysical surveys, 242 diamond drill holes, totalling 69 080 metres, and 191 reverse-circulation drill holes, totalling 28 395 metres, on the area as part of the Lawyers property. The majority of the drilling targeted the Cliff Creek, Dukes Ridge, Phoenix and AGB zones of the Lawyers (MINFILE 094E 066) deposit. In 2020, nine rock samples were collected from the occurrence yielding values of up to 3.11 grams per tonne gold and 57.8 grams per tonne silver (P&E Mining Consultants Inc. [2021-06-28]: Technical Report and Updated Mineral Resource Estimate of the Lawyers Gold-Silver Property, Omineca Mining Division, British Columbia, Canada).

Bibliography
EMPR ASS RPT 3316, 3361, 3836, 4646¸, 7703, 8300, 8330, 9708, 10048, *10952, 14142, 15469, 17299, 18847, *19114, 19481, *20629, 27661, 28040, 28648, 33556, *38447
EMPR BULL 86
EMPR EXPL 1975-E163-E167; 1976-E175-E177; 1977-E216-E217; 1978-E244-E246; 1979-265-267; 1980-421-436; 1982-330-345; 1983-475-488; 1984-348-357; 1985-C349-C362; 1986-C388-C414; 1987-C328-C346; 1988-C185-C194
EMPR FIELDWORK 1980, pp. 124-129; 1981, pp. 122-129, 135-141; 1982, pp. 125-127; 1983, pp. 137-138, 142-148; 1984, pp. 139-145, 291-293; 1985, pp. 167-169, 299; 1987, pp. 111, 114-115; 1989, pp. 409-415; 1991, pp. 207-216
EMPR GEM 1969-103; 1971-63-71; 1973-456-463
EMPR GEOLOGY 1977-1981, pp. 156-161
EMPR MAP 61 (1985)
EMPR PF (Photogeologic Interpretation Map of the Northern Omineca area, (Oct. 1964), Canadian Superior Exploration Limited-in 94E General File)
GSC BULL 270
GSC OF 306; 483
GSC P 76-1A, pp. 87-90; 80-1A, pp. 27-32
W MINER April, 1982
N MINER October 13, 1986
N MINER MAG March 1988, p. 1
GCNL #23(Feb.1), 1985; #165(Aug.27), 1986
IPDM Nov/Dec 1983
ECON GEOL Vol. 86, pp. 529-554, 1991
MIN REV September/October, 1982; July/August, 1986
WIN Vol. 1, #7, June 1987
Placer Dome File
*P&E Mining Consultants Inc. (2021-06-28): Technical Report and Updated Mineral Resource Estimate of the Lawyers Gold-Silver Property, Omineca Mining Division, British Columbia, Canada
EMPR PFD 673280, 830004

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