General Information
Primary Commodities: silver
Secondary Commodities: zinc, lead
Deposit Type(s): Vein Polymetallic Ag-Pb-Zn+/-Au
Location(s): 63.605560 N, -131.959720 W
NTS Mapsheet(s): 105O12
Location Comments: .5 Kilometres
Hand Samples Available at YGS: Yes
Capsule
Work History
Staked as Inca cl (Y68955) in Oct/72 by a joint venture between Dynasty EL (80%) and Atlas EL (20%), which built a tote road in early 1973 and carried out grid soil sampling, prospecting and bulldozer trenching in 1974. Atlas changed its name to Cima Res L in 1974 and Dynasty changed to Cyprus Anvil Mg Corp in 1975. Control of the property was acquired by Dome Pet L in 1981.
In 1983, the property was sold to Silvercrest Res Corp and Dawson Eldorado Gold EL, which mined 1186 tonnes of surface ore to the end of 1986. Dawson Eldorado changed its name to Dawson Eldorado ML in 1985 and optioned the property to Pacific Trans-Ocean Res L in 1987. Dawson Eldorado ML transferred the Inca cl to Gold City Resources Inc. in Aug/91, and in Aug/93, the Inca cl were transferred to Avanti Minerals Ltd. In Dec/94 Avanti Minerals Ltd. transferred the Inca claims to Avanti Minerals (1994) Inc.
Capsule Geology
Devonian chert, shale and chert pebble conglomerate are cut by vein mineralization similar to the Plata occurrence to the west. The 1974 trenching located more than 10 galena-bearing veins containing galena with high silver to lead ratios. The best exposures were in Zone 7 where a 20 m section of a steeply dipping, northwest-striking fault assayed 27% Pb and 2401 g/t Ag over 1.5 m; and in Zone 12, where a 0.3 to 0.9 m wide lens of massive galena assaying 3773 g/t Ag was exposed in a northeast-trending fault for a length of 40 m.
The ore shipped to the end of 1986, which was mined from the No. 7, 7P, 10, 12 and FF veins, returned 7 646 kg (223 000 oz) of silver.
References
DAWSON ELDORADO MINES LTD, 1985. Annual Report.
DYNASTY EXPLORATION LTD, 1974. Assessment Report *#061092 by W.J. Roberts.
MINERAL INDUSTRY REPORT 1974, p. 18.
NORTHERN MINER, 22 Oct/86; 23 Feb/87.
ROCKHAVEN RESOURCES LTD., News Release, 6 Nov/07.
ROOTS, C., and BRENT, D., 1994a. Geological Framework of West Lake map area (NTS 105N/9), Hess Mountains, east-central Yukon. In: Yukon Exploration and Geology, 1993, Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 111-121.
THE MINING LETTER 18 Sep/85.
YUKON EXPLORATION AND GEOLOGY 1983, p. 211.
YUKON MINING AND EXPLORATION OVERVIEW 1986.
Staked as Inca cl (Y68955) in Oct/72 by a joint venture between Dynasty EL (80%) and Atlas EL (20%), which built a tote road in early 1973 and carried out grid soil sampling, prospecting and bulldozer trenching in 1974. Atlas changed its name to Cima Res L in 1974 and Dynasty changed to Cyprus Anvil Mg Corp in 1975. Control of the property was acquired by Dome Pet L in 1981.
In 1983, the property was sold to Silvercrest Res Corp and Dawson Eldorado Gold EL, which mined 1186 tonnes of surface ore to the end of 1986. Dawson Eldorado changed its name to Dawson Eldorado ML in 1985 and optioned the property to Pacific Trans-Ocean Res L in 1987. Dawson Eldorado ML transferred the Inca cl to Gold City Resources Inc. in Aug/91, and in Aug/93, the Inca cl were transferred to Avanti Minerals Ltd. In Dec/94 Avanti Minerals Ltd. transferred the Inca claims to Avanti Minerals (1994) Inc.
Capsule Geology
Devonian chert, shale and chert pebble conglomerate are cut by vein mineralization similar to the Plata occurrence to the west. The 1974 trenching located more than 10 galena-bearing veins containing galena with high silver to lead ratios. The best exposures were in Zone 7 where a 20 m section of a steeply dipping, northwest-striking fault assayed 27% Pb and 2401 g/t Ag over 1.5 m; and in Zone 12, where a 0.3 to 0.9 m wide lens of massive galena assaying 3773 g/t Ag was exposed in a northeast-trending fault for a length of 40 m.
The ore shipped to the end of 1986, which was mined from the No. 7, 7P, 10, 12 and FF veins, returned 7 646 kg (223 000 oz) of silver.
References
DAWSON ELDORADO MINES LTD, 1985. Annual Report.
DYNASTY EXPLORATION LTD, 1974. Assessment Report *#061092 by W.J. Roberts.
MINERAL INDUSTRY REPORT 1974, p. 18.
NORTHERN MINER, 22 Oct/86; 23 Feb/87.
ROCKHAVEN RESOURCES LTD., News Release, 6 Nov/07.
ROOTS, C., and BRENT, D., 1994a. Geological Framework of West Lake map area (NTS 105N/9), Hess Mountains, east-central Yukon. In: Yukon Exploration and Geology, 1993, Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 111-121.
THE MINING LETTER 18 Sep/85.
YUKON EXPLORATION AND GEOLOGY 1983, p. 211.
YUKON MINING AND EXPLORATION OVERVIEW 1986.
Location Map
Last Updated: Feb 12, 2014
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1983 | Other | Surface mining. |
| 1974 | Geochemistry: Soil | |
| 1974 | Other | |
| 1974 | Other | |
| 1974 | Trenching: Mechanical | |
| 1973 | Development, Surface: All Weather Road |
Regional Geology - Terrane
Group: Ancestral North America
Affinity: W Laurentia
Name: North America - basinal strata
Realm: Laurentia
Regional Geology - Bedrock
Supergroup:
Group/Suite:
Formation: Jones Lake
Member:
Terrane: Laurentia
Period Max: Triassic
Age Max: 250 MA
Period Min: Triassic
Age Min: 200 MA
Rock Major: shale/argillite/sandstone/limestone
Rock Minor:
Reference: Cecile (unpub. 1997) - corrections to Cecile & Abbott (1989) - GSC OF 2076
Geological Unit (1M): TrJ
Geological Unit (250K): TrJ1
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 095668 | 2008 | Assessment Report Describing Diamond Drilling, Excavator Trenching, Geophysical Surveys, Geochemical Sampling, Prospecting and Water Surveys at the Plata Project | Magnetic - Airborne Geophysics, VTEM - Airborne Geophysics, Diamond - Drilling, Silt - Geochemistry, Soil - Geochemistry, Backhoe - Trenching | 51 | 4113 |
| 095607 | 2007 | Assessment Report Describing Geophysical Surveys, Geochemical Sampling, Prospecting and Water Surveying at the Plata Project | Magnetic - Airborne Geophysics, VTEM - Airborne Geophysics, Environmental Assessment/Impact - Studies, Photogrammatic - Studies | ||
| 093827 | 1997 | 1997 Geological Assessment Report on Emerald Lake Claims | Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry | ||
| 019829 | 1973 | Northern Mineral Assistance Grant Geochemical, Geological, Cat Trenching and Engineering Evaluation Report on the Plata Group | Soil - Geochemistry, Regional Surficial Mapping - Geology, Line Cutting - Other, Hydraulic - Trenching | ||
| 019809 | 1968 | Hess Area Project Proposed Property Follow-Up 1968 Field Season | Research/Summarize - Pre-existing Data | ||
| 019033 | 1968 | Atlas Explorations Limited Project Report 1968 Hess River Area | Silt - Geochemistry, Soil - Geochemistry, Regional Bedrock Mapping - Geology | ||
| 018947 | 1967 | Hess River Project Report | Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology | ||
| 019032 | 1967 | Hess River Project Report | Data Compilation - Pre-existing Data |
Related References
| Number | Title | Page(s) | Document Type |
|---|---|---|---|
| ARMC016470 | Aeromagnetic series map of 105O/12 showing geology | Geochemical Map |
| Citations |
|---|
