General Information
Deposit Type(s): Unknown
Location(s): 64.351940 N, -140.639440 W
NTS Mapsheet(s): 116C07
Location Comments: 1 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Tequila cl 1-4 (YA49644) in Jan/80 by T.P. Wylie.
Cominco staked Bruin cl 1-48 (YB53138) 4 km to the southwest in May/95. The company carried out a combined helicopter-borne magnetic and electromagnetic survey later in the year.
Restaked within OAQ cl 1-26 (YC21101) in Oct/2001 by Groundhog Exploration Company Ltd which silt sampled the creeks peripheral to the claim block in Nov/2001. The following September the company collected soil and additional silt samples and in Oct/2002 added OAQ cl 25-28 (YC21902) to its claim holdings. (note: the duplicate claim numbers replace previous claims which were allowed to expire).
Capsule Geology
The area is underlain by Devonian to Mississippian Nasina Assemblage rocks consisting of black meta-pelites, quartzites and thin felsic meta-tuffs. Mortensen (1988) mapped a marble unit generally cutting east-west across the Bruin claims.
Cominco¿s airborne geophysical program outlined two conductors, 'A' and 'B'. Conductor 'A' is located on a portion of the lower south slopes of Bruin Creek and is open to the southeast. The strongest responses encircle the strongest lobe of a broad magnetic high but there appears no direct magnetic associations with the strongest EM peaks. Conductor 'B' is a single, possibly two-line EM peak feature mainly seen in the higher frequencies. It has a magnetic correlation and is situated near a break in slope along Bruin Creek. This break may reflect a fault (northeast-southwest). Cominco recommended follow-up work but the claims were allowed to lapse in 1998.
Groundhog Exploration staked the OAQ claims to protect the assumed source of coarse placer gold recovered by its placer mine located on Maiden Creek. Some of the quartz claims were not renewed after the initial work program and the numbers were reused in later staking. Silt and soil sampling outlined an area of anomalous gold on Maiden Creek, north of where it splits into left and right limits. The gold appears to be concentrated in a deposit of fluvial gravels similar in composition to the White Channel gravels located in the Klondike Valley. Airphoto interpretation suggests the presence of subsidiary fault structures in the Maiden Creek valley. Woodsend theorized that these faults may be a possible source for the area's placer gold.
Staked as Tequila cl 1-4 (YA49644) in Jan/80 by T.P. Wylie.
Cominco staked Bruin cl 1-48 (YB53138) 4 km to the southwest in May/95. The company carried out a combined helicopter-borne magnetic and electromagnetic survey later in the year.
Restaked within OAQ cl 1-26 (YC21101) in Oct/2001 by Groundhog Exploration Company Ltd which silt sampled the creeks peripheral to the claim block in Nov/2001. The following September the company collected soil and additional silt samples and in Oct/2002 added OAQ cl 25-28 (YC21902) to its claim holdings. (note: the duplicate claim numbers replace previous claims which were allowed to expire).
Capsule Geology
The area is underlain by Devonian to Mississippian Nasina Assemblage rocks consisting of black meta-pelites, quartzites and thin felsic meta-tuffs. Mortensen (1988) mapped a marble unit generally cutting east-west across the Bruin claims.
Cominco¿s airborne geophysical program outlined two conductors, 'A' and 'B'. Conductor 'A' is located on a portion of the lower south slopes of Bruin Creek and is open to the southeast. The strongest responses encircle the strongest lobe of a broad magnetic high but there appears no direct magnetic associations with the strongest EM peaks. Conductor 'B' is a single, possibly two-line EM peak feature mainly seen in the higher frequencies. It has a magnetic correlation and is situated near a break in slope along Bruin Creek. This break may reflect a fault (northeast-southwest). Cominco recommended follow-up work but the claims were allowed to lapse in 1998.
Groundhog Exploration staked the OAQ claims to protect the assumed source of coarse placer gold recovered by its placer mine located on Maiden Creek. Some of the quartz claims were not renewed after the initial work program and the numbers were reused in later staking. Silt and soil sampling outlined an area of anomalous gold on Maiden Creek, north of where it splits into left and right limits. The gold appears to be concentrated in a deposit of fluvial gravels similar in composition to the White Channel gravels located in the Klondike Valley. Airphoto interpretation suggests the presence of subsidiary fault structures in the Maiden Creek valley. Woodsend theorized that these faults may be a possible source for the area's placer gold.
Location Map
Last Updated: Jun 27, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 2002 | Geochemistry: Silt | |
| 2002 | Geochemistry: Soil | |
| 2001 | Airphotography: Interpretation | |
| 2001 | Geochemistry: Silt | |
| 1995 | Airborne Geophysics: Electromagnetic | Also magnetometer survey. |
Regional Geology - Terrane
Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian
Regional Geology - Bedrock
Supergroup:
Group/Suite: Finlayson
Formation:
Member:
Terrane: Yukon-Tanana
Period Max: Devonian
Age Max: 365 MA
Period Min: Carboniferous
Age Min: 345 MA
Rock Major: quartzite/gr-quartzite/qt-ms-cl-schist
Rock Minor: conglo/grit
Reference: Mortensen (1996) - YGS OF 1996-1(G)
Geological Unit (1M): DMF
Geological Unit (250K): DMF3
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 094606 | 2005 | Assessment Report-OAQ Quartz Claims | Interpretation - Airphotography, All Weather Road - Development, Surface, Rock - Geochemistry, Data Compilation - Pre-existing Data | ||
| 094387 | 2003 | Assessment Report-OAQ Quartz Claims | Interpretation - Airphotography, All Weather Road - Development, Surface, Silt - Geochemistry, Soil - Geochemistry, Data Compilation - Pre-existing Data | ||
| 094343 | 2002 | Groundhog Exploration, Maiden Creek, Fortymile District, Geology and Geochemistry Report QAQ Quartz Claims 1-8, 19-22 | Interpretation - Airphotography, Silt - Geochemistry, Silt - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other, Data Compilation - Pre-existing Data |
Related References
| Number | Title | Page(s) | Document Type |
|---|
| Citations |
|---|
| Mortensen, J.K., 1988. Geology, southwestern Dawson map area, Yukon. Geological Survey of Canada, Open File 1927. |
