General Information
Secondary Commodities: barite, lead, zinc
Deposit Type(s): Sediment hosted Stratiform Barite
Location(s): 64.6150 N, -137.686670 W
NTS Mapsheet(s): 116A12
Location Comments: 1 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Boyle cl (YA64008) in Aug/81 by Cominco, which performed mapping and geochem sampling later in the year. Milchem Can L added Milk Um cl (YA64193) in Aug/81 and performed mapping and sampling in 1982.
In Jul/95 G. MacKay staked First cl 1-12 (YB64380) 7 km to the southwest.
Restaked within MC cl 1-682 (YB99163) by Blackstone Resources Inc in Oct/97.
Capsule Geology
Bedded barite occurs with minor galena and sphalerite on the Boyle claims within a thick sequence of graptolitic shale, silty mudstone and mafic volcanic rocks of the Ordovician to Lower Devonian Road River Formation along the south edge of the Dawson Thrust. Barite up to 12 m wide occurs over a 3 to 4 km strike length, mostly as float. The best assay was 32% BaSO4 across 7 m.
Along strike to the west, one outcrop of massive barite was found on the Milk Um group. It contains no laminations or witherite inclusions and has a specific gravity of 4.0.
References
COMINCO LTD, Jun/82. Assessment Report *#091040 by E.G. Olfert.
MILCHEM CANADA LTD, Nov/82. Assessment Report #091381 by T.G. O'Neill.
YUKON EXPLORATION AND GEOLOGY 1982, p. 220-221.
Staked as Boyle cl (YA64008) in Aug/81 by Cominco, which performed mapping and geochem sampling later in the year. Milchem Can L added Milk Um cl (YA64193) in Aug/81 and performed mapping and sampling in 1982.
In Jul/95 G. MacKay staked First cl 1-12 (YB64380) 7 km to the southwest.
Restaked within MC cl 1-682 (YB99163) by Blackstone Resources Inc in Oct/97.
Capsule Geology
Bedded barite occurs with minor galena and sphalerite on the Boyle claims within a thick sequence of graptolitic shale, silty mudstone and mafic volcanic rocks of the Ordovician to Lower Devonian Road River Formation along the south edge of the Dawson Thrust. Barite up to 12 m wide occurs over a 3 to 4 km strike length, mostly as float. The best assay was 32% BaSO4 across 7 m.
Along strike to the west, one outcrop of massive barite was found on the Milk Um group. It contains no laminations or witherite inclusions and has a specific gravity of 4.0.
References
COMINCO LTD, Jun/82. Assessment Report *#091040 by E.G. Olfert.
MILCHEM CANADA LTD, Nov/82. Assessment Report #091381 by T.G. O'Neill.
YUKON EXPLORATION AND GEOLOGY 1982, p. 220-221.
Location Map
Last Updated: Sep 15, 2011
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1982 | Geology: Bedrock Mapping | |
| 1982 | Other | |
| 1981 | Geology: Bedrock Mapping | |
| 1981 | Other |
Regional Geology - Terrane
Group: Ancestral North America
Affinity: W Laurentia
Name: North America - basinal strata
Realm: Laurentia
Regional Geology - Bedrock
Supergroup: Windermere
Group/Suite: Hyland
Formation: Narchilla
Member:
Terrane: Laurentia
Period Max: Ediacaran
Age Max: 550 MA
Period Min: Cambrian
Age Min: 528 MA
Rock Major: slate
Rock Minor: chert/siltstone/sandstone/conglomerate
Reference: Abbott (1997) - YGS GM 1997-3
Geological Unit (1M): PCH
Geological Unit (250K): PCH8
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 091040 | 1981 | Geological and Geochemical Report on the Boyle Group of Mineral Claims | Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology |
