Find publications, data and maps managed by the
Yukon Geological Survey

Occurrence Details


Occurrence Number
105O 056
Occurrence Name
Gold
Occurrence Type
Hard-rock
Status
Anomaly


General Information

Deposit Type(s): Porphyry Mo (Low F-Type)
Location(s): 63.199720 N, -131.189440 W
NTS Mapsheet(s): 105O03
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No

Capsule

Work History

Phelps Dodge CCL staked Cal cl (YB18061) in Jun/91. Noranda ECL tied on Gold cl (YB18620) in Aug/91. D. Sufday working for B. Lueck restaked the area as the Weas cl 1-62 (YB42994) in June/94. Lueck carried out geological mapping and reconnaissance soil and silt sampling later in the summer. In the fall of 1994 Lueck transferred the claims to APC Ventures Inc. In the summer of 1995 APC carried out further geological mapping and expanded the soil and silt sampling program.
In Feb/96 the Weas cl were optioned by Yukon Gold Corp, which carried out diamond drilling in the summer of 1996.
Cyprus Canada Inc surrounded the Weas claims with Cyp cl 1-41 (YB81035) in Aug/97.

Capsule Geology

The claim block is underlain by graphitic shale, carbonaceous shale, chert and quartzite of the Proterozoic Hyland Group and by Cretaceous porphyritic stocks and dykes of granodiorite and quartz-monzonite. The pluton is surrounded by pyritized hornfels up to 1 km wide. Fracture veinlets and sheeted veins which post date the intrusions form stockworks. Alteration, brecciation and veining are widespread. Veins and breccias are dominated by sulphide (pyrite, arsenopyrite, molybdenite) quartz and tourmaline and include minor galena, chalcopyrite and stibnite. Veining and brecciation has been observed in all rock units present in the claim block.
Soil sampling in 1994 outlined a strong gold and arsenic soil anomaly on the margin of the pluton. In 1995 rock sampling outlined porphyry hosted gold mineralization in an area designated the Ann Mark Zone. A 3 m chip sample collected from quartz veins in sericite altered diorite assayed 15.3 g/t Au 2.8 ppm Ag, 12 ppm Cu, >10 000 ppm As, 414 ppm Bi, 48 ppm Sb, 1 ppm Mo and 20 ppm W.
Yukon Gold drilled 5 holes across the center of the Ann Mark Zone in the summer of 1996 (footage figures not released). Anomalous but uneconomic gold mineralization occurs throughout the drill core in stockworks and sheeted veins of quartz-arsenopyrite-pyrrhotite. A 21 m intersection grading 1.01 g/t Au was encountered in sheeted quartz-arsenopyrite-bismuthinite veins located at the intrusive/sediment contact. Further drilling was recommended along the contact zone to evaluate the significance of this intersection.

References

GEORGE CROSS NEWSLETTER, 2 Apr/96, 29 Oct/96,

LUECK, B.A., Sep/95. Assessment Report #093407 by B.A. Lueck.

LUECK, B.A., Mar/96. Assessment Report #093420 by B.A. Lueck.

NORTHERN MINER, 11 Mar/96 p. 14, 28 Oct/96 p.7.

YUKON GOLD CORP, 25 May/96. Press Release.

Location Map

Last Updated: Jul 29, 2013

Work History

Year Work Type Comment
1996 Drilling: Diamond Number of holes drilled: 5 Footage not released.
1995 Geochemistry: Silt
1995 Geochemistry: Soil
1995 Geology: Bedrock Mapping
1994 Geochemistry: Silt
1994 Geochemistry: Soil
1994 Geology: Bedrock Mapping
1991 Other

Regional Geology - Terrane

Group: Ancestral North America
Affinity: W Laurentia
Name: North America - basinal strata
Realm: Laurentia


Regional Geology - Bedrock

Supergroup:
Group/Suite: Tsichu
Formation:
Member:
Terrane: Laurentia
Period Max: Carboniferous
Age Max: 359 MA
Period Min: Carboniferous
Age Min: 318 MA
Rock Major: shale
Rock Minor: sandstone/siliceous shale
Reference: Abbott (2013) - YGS GM 2013-1
Geological Unit (1M): CT
Geological Unit (250K): CT2

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
095917 2011 Geological and Geochemical Assessment Report for the Carlin Gold Corporation-Constantine Metal Resources Ltd. Joint-Venture (CCJV) Project on the Tut Property Group HM02888 Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Prospecting - Other
093827 1997 1997 Geological Assessment Report on Emerald Lake Claims Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry
093407 1995 Geological and Geochemical Assessment Report for the WEAS Claims Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other
093420 1994 Geological and Geochemical Assessment Report for the Weas 1-62 Claims Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Property Evaluation - Other
093003 1991 Report on Geological Mapping and Geochemical Sampling on the Jet Property, Yukon Territory Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology
091367 1982 Geochemical - Geological Assessment Report Sun Claims Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology
019040 1968 Report on Geological Work Done During the 1968 Field Season Bedrock Mapping - Geology
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
ARMC008210 Map showing geochemical sample values - MacMillan project Geochemical Map
ARMC011941 Geochemical map - NTS 105-O-3 - Area A - MacMillan project Geochemical Map
ARMC011929 Geochemical results and claim group map of sheet 105-O-3 - Ross River Geochemical Map
ARMC011940 Geochemical zinc contour - nts 105O-3 - MacMillan project Geochemical Map
ARMC018177 Field map of 105O/3 with geological notations Geoscience Map (Geological - Bedrock)
ARMC011938 Geochemical copper contour - nts 105O-3 - MacMillan project Geochemical Map
ARMC011939 Geochemical lead contour - nts 105O-3 - MacMillan project Geochemical Map
BROCK000087 Geochemical results and claim group map of sheet 105-O-3 - Fig. 10 Geochemical Map
BROCK000091 Geochemical results and claim group map of sheet 105-O-3 Geochemical Map
Citations

Submit Information to Yukon Geological Survey

Name:

E-mail:

Comment: