General Information
Secondary Commodities: barite, zinc, silver, lead
Deposit Type(s): Sediment hosted Sedimentary Exhalative Zn-Pb-Ag (Sedex)
Location(s): 61.665280 N, -129.820560 W
NTS Mapsheet(s): 105H12
Location Comments: 1 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
F.L. Fletchuk staked Sonnia cl (Y29244) 3.2 km to the north of the occurrence location in Jul/69.
Cominco staked the Fin cl (YA35002) at this location in Sep/78, and explored with hand trenching in 1978, mapping and geochemical surveys in 1979, mapping, geochemical sampling and 6 holes (697 m) in 1980 and enlarged the property to cover 450 claims in 1979 and 1980, mapping and geochemical surveys in 1981 and 1982, a UTEM survey in 1982, and 7 holes (1656 m) in 1984. Cominco added more Fin claims (YB33099) in Jun/90 and performed line cutting in 1990, and further linecutting and extensive UTEM and magnetic surveys over the property in 1991. Selected targets received follow-up HLEM and detailed gravity surveys.
In 1992, Cominco explored with 1386.7 m of diamond drilling in 7 holes.
The 1993 program consisted of 42 km of UTEM (University of Toronto Electromagnetic) surveying, 32 km of magnetic surveying and 26 km of HLEM (Horizontal Loop Electromagnetic) surveying on the Fin cl.
Capsule Geology
Numerous lenses of massive sphalerite, galena and pyrite occur over a 1.1 km strike length. They are hosted by laminated carbonaceous, siliceous mudstone of the Devono-Mississippian Earn Group.
A 200 m by 1000 m coincident lead and zinc soil anomaly with spotty silver values was outlined near the original Fin Creek showing. The 1980 drilling was conducted on the Fin 23-26 claims and returned minor intersections of laminated sphalerite, galena and pyrite from three holes. Minor disseminated pyrite, pyrite-barite nodules and barite lenses up to 15 cm by 3 m were also present in one of the cherty members.
The 1984 drilling tested for a southerly extension and four of the holes intersected minor layers of pyrite-sphalerite mineralization up to 0.7 m thick that assayed up to 11.6% Zn and 0.4% Pb.
The 1991 EM survey traced several conductive, carbonaceous mudstone intervals over 8 km from the original showings. The 1992 diamond drilling encountered anomalous values of Pb, Zn, Ag, and Ba. The 1993 geophysical surveys delineated several conductors and magnetic highs.
References
COMINCO LTD, Sep/79. Assessment Report *#090492 by S.R. Legget.
COMINCO LTD, 1980. Assessment Report *#090658 by R.W. Lane and A.B. Mawer.
COMINCO LTD, Oct/81. Assessment Report *#090877 by T.W. Hodson.
COMINCO LTD, Jan/83. Assessment Report *#091407 by T.W. Hodson.
COMINCO LTD, 1985. Assessment Report *#091595 by R.J. Sharp.
COMINCO LTD, 1992. Assessment Report #093004 by R.W. Holroyd.
COMINCO LTD, Jan/93. Assessment Report #093065 by P.A. MacRobbie.
COMINCO LTD, Dec/93. Assessment Report #093150 by I. Jackisch.
COMINCO LTD, 1996. Assessment Report *#093527 by C. Schultze.
YUKON EXPLORATION AND GEOLOGY 1981, p. 144; 1984, p. 98.
YUKON GEOLOGY AND EXPLORATION 1979-80, p. 188.
F.L. Fletchuk staked Sonnia cl (Y29244) 3.2 km to the north of the occurrence location in Jul/69.
Cominco staked the Fin cl (YA35002) at this location in Sep/78, and explored with hand trenching in 1978, mapping and geochemical surveys in 1979, mapping, geochemical sampling and 6 holes (697 m) in 1980 and enlarged the property to cover 450 claims in 1979 and 1980, mapping and geochemical surveys in 1981 and 1982, a UTEM survey in 1982, and 7 holes (1656 m) in 1984. Cominco added more Fin claims (YB33099) in Jun/90 and performed line cutting in 1990, and further linecutting and extensive UTEM and magnetic surveys over the property in 1991. Selected targets received follow-up HLEM and detailed gravity surveys.
In 1992, Cominco explored with 1386.7 m of diamond drilling in 7 holes.
The 1993 program consisted of 42 km of UTEM (University of Toronto Electromagnetic) surveying, 32 km of magnetic surveying and 26 km of HLEM (Horizontal Loop Electromagnetic) surveying on the Fin cl.
Capsule Geology
Numerous lenses of massive sphalerite, galena and pyrite occur over a 1.1 km strike length. They are hosted by laminated carbonaceous, siliceous mudstone of the Devono-Mississippian Earn Group.
A 200 m by 1000 m coincident lead and zinc soil anomaly with spotty silver values was outlined near the original Fin Creek showing. The 1980 drilling was conducted on the Fin 23-26 claims and returned minor intersections of laminated sphalerite, galena and pyrite from three holes. Minor disseminated pyrite, pyrite-barite nodules and barite lenses up to 15 cm by 3 m were also present in one of the cherty members.
The 1984 drilling tested for a southerly extension and four of the holes intersected minor layers of pyrite-sphalerite mineralization up to 0.7 m thick that assayed up to 11.6% Zn and 0.4% Pb.
The 1991 EM survey traced several conductive, carbonaceous mudstone intervals over 8 km from the original showings. The 1992 diamond drilling encountered anomalous values of Pb, Zn, Ag, and Ba. The 1993 geophysical surveys delineated several conductors and magnetic highs.
References
COMINCO LTD, Sep/79. Assessment Report *#090492 by S.R. Legget.
COMINCO LTD, 1980. Assessment Report *#090658 by R.W. Lane and A.B. Mawer.
COMINCO LTD, Oct/81. Assessment Report *#090877 by T.W. Hodson.
COMINCO LTD, Jan/83. Assessment Report *#091407 by T.W. Hodson.
COMINCO LTD, 1985. Assessment Report *#091595 by R.J. Sharp.
COMINCO LTD, 1992. Assessment Report #093004 by R.W. Holroyd.
COMINCO LTD, Jan/93. Assessment Report #093065 by P.A. MacRobbie.
COMINCO LTD, Dec/93. Assessment Report #093150 by I. Jackisch.
COMINCO LTD, 1996. Assessment Report *#093527 by C. Schultze.
YUKON EXPLORATION AND GEOLOGY 1981, p. 144; 1984, p. 98.
YUKON GEOLOGY AND EXPLORATION 1979-80, p. 188.
Location Map
Last Updated: Aug 29, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1993 | Ground Geophysics: Magnetics | Also UTEM and HLEM surveys. |
| 1992 | Drilling: Diamond | Seven holes 1,386.7 m. |
| 1991 | Ground Geophysics: EM | (UTEM), magnetics, HLEM and detailed gravity surveys. |
| 1984 | Drilling: Diamond | Seven holes, 1,656 m. |
| 1982 | Geochemistry: Soil | |
| 1982 | Geology: Bedrock Mapping | |
| 1982 | Ground Geophysics: EM | UTEM survey. |
| 1981 | Geochemistry: Soil | |
| 1981 | Geology: Bedrock Mapping | |
| 1980 | Drilling: Diamond | Six holes, 697 m. |
| 1980 | Geochemistry: Soil | |
| 1980 | Geology: Bedrock Mapping | |
| 1979 | Geochemistry: Soil | |
| 1979 | Geology: Bedrock Mapping | |
| 1978 | Trenching: Hand |
Regional Geology - Terrane
Group: Ancestral North America
Affinity: W Laurentia
Name: North America - platformal strata
Realm: Laurentia
Regional Geology - Bedrock
Supergroup:
Group/Suite: Earn
Formation:
Member:
Terrane: Laurentia
Period Max: Devonian
Age Max: 385 MA
Period Min: Carboniferous
Age Min: 345 MA
Rock Major: shale, sandstone, conglomerate, limestone
Rock Minor:
Reference: Jilson et al. (1980) - Yukon EMR ARMC 011986
Geological Unit (1M): DME
Geological Unit (250K): DME1
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 096472 | 2013 | 2013 Data Compilation Report for the Fin Property | Data Compilation - Pre-existing Data | ||
| 095226 | 2009 | 2009 Geological Report for the Fin Property | Soil - Geochemistry, Detailed Bedrock Mapping - Geology | ||
| 095045 | 2007 | 2007 Geological Report for the Fin Claim Group | Historical Drill Core - Geochemistry, Rock - Geochemistry | ||
| 091595 | 1984 | Assessment Report Diamond Drilling Fin Property | Diamond - Drilling | 7 | 1655.58 |
| 091407 | 1982 | Assessment Report Geology, Geochemistry, Geophysics Fin Property | Silt - Geochemistry, Soil - Geochemistry, EM - Ground Geophysics, Line Cutting - Other | ||
| 090658 | 1980 | Assessment Report for Diamond Drill Hole Drilling on Mineral Claims Fin 23, 24, 25 and 26 | Diamond - Drilling, Drill Core - Geochemistry | 6 | 696.90 |
| 090492 | 1979 | Assessment Report for a Soil Geochemical Survey Undertaken on Fin Claims 4, 6, 7, 8, 10, 12, 14, 18-48, 50-56 | Soil - Geochemistry |
Related References
| Number | Title | Page(s) | Document Type |
|---|---|---|---|
| ARMC016607 | Geochemical map - 105H/12 - Leckie Lake | Geochemical Map | |
| ARMC018715 | Field map - Leckie Lake area - 105H/13, 105H/12 | Geoscience Map (General) |
| Citations |
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