General Information
Secondary Commodities: copper, manganese, lead
Deposit Type(s): Volcanogenic Massive Sulphide (VMS) Kuroko Cu-Pb-Zn
Location(s): 63.978890 N, -139.477780 W
NTS Mapsheet(s): 115O14
Location Comments: 1 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Bronson cl (YA49997) in Jun/80 by Cominco, which performed mapping and geochem sampling in 1980 and bulldozer trenching in 1983. Cominco partially restaked as Bro cl (YA89024) in Apr/87 and conducted IP, VLF-EM and mag surveys and bulldozer trenching later in the year.
Capsule Geology
Several soil geochemical anomalies were outlined in an area underlain by quartz and feldspar augen-bearing quartz-muscovite schist and rusty weathering muscovite-quartz schist of the Permian Klondike Schist Assemblage (units Psa and Psqm, respectively). Galena-bearing quartz-carbonate vein float was found near the north end of the claims in 1983. Schist boulders containing stringers and disseminations of pyrite, chalcopyrite and galena were found in 1986. This latter style of mineralization gives a Permian Pb isotopic model age (Mortensen, unpub. data), and is interpreted as syngenetic VMS-style mineralization formed in felsic metavolcanic rocks now represented by the muscovite-quartz schist.
The 1987 geophysical surveys outlined several anomalies on the south end of the property.
References
COMINCO LTD, Mar/81. Assessment Report *#090773 by E.G. Olfert.
COMINCO LTD, Dec/83. Assessment Report *#091498 by I.A. Paterson.
COMINCO LTD, Feb/88. Assessment Report #092093 by J. Klein and I.A. Paterson.
MORTENSEN, J.K., Geological Compilation Maps of the Northern Stewart River map area Klondike and Sixtymile Districts (115N/15,16; 115O/13,14 and parts of 115O/15,16). Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open file 1996-1 (G).
YUKON EXPLORATION 1987, p. 293.
YUKON EXPLORATION AND GEOLOGY 1983, p. 264.
YUKON GEOLOGY PROGRAM AND EXPLORATION 1979-80, p. 272.
Staked as Bronson cl (YA49997) in Jun/80 by Cominco, which performed mapping and geochem sampling in 1980 and bulldozer trenching in 1983. Cominco partially restaked as Bro cl (YA89024) in Apr/87 and conducted IP, VLF-EM and mag surveys and bulldozer trenching later in the year.
Capsule Geology
Several soil geochemical anomalies were outlined in an area underlain by quartz and feldspar augen-bearing quartz-muscovite schist and rusty weathering muscovite-quartz schist of the Permian Klondike Schist Assemblage (units Psa and Psqm, respectively). Galena-bearing quartz-carbonate vein float was found near the north end of the claims in 1983. Schist boulders containing stringers and disseminations of pyrite, chalcopyrite and galena were found in 1986. This latter style of mineralization gives a Permian Pb isotopic model age (Mortensen, unpub. data), and is interpreted as syngenetic VMS-style mineralization formed in felsic metavolcanic rocks now represented by the muscovite-quartz schist.
The 1987 geophysical surveys outlined several anomalies on the south end of the property.
References
COMINCO LTD, Mar/81. Assessment Report *#090773 by E.G. Olfert.
COMINCO LTD, Dec/83. Assessment Report *#091498 by I.A. Paterson.
COMINCO LTD, Feb/88. Assessment Report #092093 by J. Klein and I.A. Paterson.
MORTENSEN, J.K., Geological Compilation Maps of the Northern Stewart River map area Klondike and Sixtymile Districts (115N/15,16; 115O/13,14 and parts of 115O/15,16). Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open file 1996-1 (G).
YUKON EXPLORATION 1987, p. 293.
YUKON EXPLORATION AND GEOLOGY 1983, p. 264.
YUKON GEOLOGY PROGRAM AND EXPLORATION 1979-80, p. 272.
Location Map
Last Updated: Jul 11, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1987 | Development, Surface: Access Road | |
| 1987 | Ground Geophysics: IP | Also VLF-EM and magnetic surveys. |
| 1987 | Trenching: Mechanical | |
| 1983 | Geochemistry: Rock | |
| 1983 | Geochemistry: Soil | |
| 1983 | Geology: Bedrock Mapping | |
| 1983 | Other: Prospecting | |
| 1983 | Trenching: Mechanical | |
| 1980 | Geochemistry: Soil | |
| 1980 | Geology: Bedrock Mapping |
Regional Geology - Terrane
Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian
Regional Geology - Bedrock
Supergroup:
Group/Suite: Klondike
Formation:
Member:
Terrane: Yukon-Tanana
Period Max: Permian
Age Max: 271 MA
Period Min: Permian
Age Min: 251 MA
Rock Major: quartzite/qt-ms-cl schist/gneiss/amphibolite
Rock Minor:
Reference: Mortensen (1996) - YGS OF 1996-1(G)
Geological Unit (1M): PK
Geological Unit (250K): PK2
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 092690 | 1988 | Geological, Geophysical, Geochemical, and Trench Report for Work Performed by Mark Management Ltd. on the REEF Grid | All Weather Road - Development, Surface, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Magnetics - Ground Geophysics, Line Cutting - Other, Mechanical - Trenching | ||
| 092093 | 1987 | Report on the Road Building, Linecutting and Geophysical Surveys on the Bronson Property | All Weather Road - Development, Surface, EM - Ground Geophysics, IP - Ground Geophysics, Magnetics - Ground Geophysics, Line Cutting - Other | ||
| 091546 | 1983 | Regional Geochemical and Geophysical Report on the Syndicate, Dawson, William, 83, 98, Wild, and Wild Card Claims | Magnetic - Airborne Geophysics, Bedrock Mapping - Geology, EM - Ground Geophysics, Heavy Mineral Concentrate - Lab Work/Physical Studies, Data Compilation - Pre-existing Data | ||
| 091498 | 1982 | Trenching Report on the BRONSON 1-10 Claims | Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Mechanical - Trenching | ||
| 090773 | 1980 | Geochemical Report on the BRONSON Claims 1-10 | Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Prospecting - Other |
