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Occurrence Details


Occurrence Number
116A 012
Occurrence Name
Mike Lake
Occurrence Type
Hard-rock
Status
Prospect


General Information

Secondary Commodities: bismuth, silver, gold, copper
Aliases: Hamilton, Lorrie, Mike
Deposit Type(s): Vein Polymetallic Ag-Pb-Zn+/-Au
Location(s): 64.279170 N, -137.892780 W
NTS Mapsheet(s): 116A05
Location Comments: .5 Kilometres
Hand Samples Available at YGS: Yes

Capsule

Work History

Staked as Gold cl (Y37945) in Jun/69 by Hart River Mines Ltd, which carried out geochemical sampling, EM surveying and hand trenching in 1970-71. Two packsack holes were attempted but could not be drilled on the gossan at the North showing.
Restaked as AS cl 1-8 (Y65640) and GH 1-2 (Y81731) in Aug/72 by Belmoral Mines Ltd, which carried out geological mapping, geochemical sampling and hand trenching in 1972 and 1973. Restaked as Mike cl 1-24 (Y99705) in Jun/75 by Canalta Resources Ltd, which carried out geological mapping, hand trenching and drilled 4 shallow holes (199.6 m) on the south showing and hand trenching on the north showing later in the year. Belmoral conducted further hand trenching in 1976.
Restaked as Aine cl 1-24 (YA55689) in Jul/81 by S. Young, who carried out mapping later in the year. In Jan/84, Young transferred the claims to M. Boyle who sold his interest later in the month to Gallagher Explorations Ltd.
The two showings were restaked as part of the Jamie cl 1-4 (YB17905) and Lorrie cl 5-8 and 17-23 (YB17905) in Jul/88 and Lorrie cl 24-57, 80 and 81 (YB23265) in Oct/88 by Walhala Explorations Ltd which carried out short prospecting, mapping and geophysical programs in 1988 and 1989. In Jun/90, Walhala sold the Lorrie claims to Tombstone Explorations Company Ltd, which carried out prospecting, geological mapping, soil geochemical sampling and staked Jamie cl 5-215 (YB30680) in Jun/90 to surround the existing claims to the south.
Placer Dome Inc optioned the property in 1991 and carried out geological mapping and soil geochemical sampling before relinquishing its option in Dec/91.
In Nov/96 International Kodiak Resources Inc staked Bo cl 1-10 (YC03523) 1 km to the northwest and in Dec/96 Canadian United Minerals Inc staked MLN cl 1-10 (YC03543) and 25-30 (YC03559) to the north and carried out prospecting and geochemical sampling the following year before selling the claims to International Kodiak Resources in Dec/97.
In Sept and Oct/97 Homestake Canada Inc staked Java claims 1-48 (YC04562), 57-61 (YC04610) and 62-79 (YC05300) 1 km northeast of the north showing and partially surrounding the southern most MLN claim block. Homestake carried out geological mapping, prospecting, geochemical rock sampling and trenching at that time.
In 1998 International Kodiak carried out silt and soil sampling on the Bo and MLN claims.
Dynamite Resources carried out extensive soil sampling in 2004. In 2005 and 2006, Dynamite diamond drilled the property.

Capsule Geology

Gold, silver and copper occur in quartz-sulphide veins which cut Upper Proterozoic to Lower Cambrian calcareous argillite near the margin of a small mid-Cretaceous syenite stock. The occurrences appears to stratle the boundary between the Upper Proterozoic to Lower Cambrian Hyland assemblage and the Lower Cambrian, Gull Lake assemblage. Two occurrences are known: north (occurrence A) and south (occurrence B).
Hart River trenched the south showing but never reached bedrock. They described the showing as a 1.2 m wide vein which was exposed intermittently for a length of 243.8 m. Chip sampling returned 6.9 g/t Au with a trace of copper across widths of 0.15 to 1.5 m. Detailed work by Belmoral outlined four vertical quartz veins striking east which are up to 1.5 m wide and contain arsenopyrite and chalcopyrite. The veins are located at the syenite contact and extend into the intrusion. Assays ranged from 0.1 to 4.3% Cu, 3.2 to 229.2 g/t Ag and 0.1 to 21.9 g/t Au. A little bismuth was noted with the best silver assay.
Canalta's drilling on the south occurrence intersected erratic mineralization with 4.5 g/t Au across 1.4 m in DDH 1, 24.0 g/t Au across 0.33 m in DDH 3, and barren vein material in the other two holes. In 1989 Walhala found minor sulphide mineralization in hornfelsed sedimentary rocks about 500 m southwest of the south showing.
The north showing (occurrence A) is marked by a gossan measuring 10.7 m wide and 91.4 m long, overlying syenite. It consists of a 10 m wide zone of quartz carbonate veins containing arsenopyrite, pyrrhotite and minor magnetite. It was mapped and sampled by Canalta over a strike length of 1000 m. The zone coincides with an EM conductor on strike with a vein that assayed 6.9 g/t Au, 5.8 g/t Ag and 0.06% Cu. A grab sample taken in 1985 from a trench in the deeply weathered gossan assayed 15.0 g/t Au, and a 2 m chip sample of strongly weathered vein material assayed 4.04 g/t Au. Later sampling by Young and by Gallagher Explorations generally confirmed these results, and specimens collected in 1990 contained up to 14.78 g/t Au.
Placer Dome discovered a series of east-west trending quartz veins cutting calcareous Hyland Group rocks both southwest and northeast of the north showing. Specimens of the vein material assayed up to 10.52 g/t Au.
Two days of prospecting and sampling by Canadian United on the MLN claims revealed anomalous concentrations of Au, As, Bi, Cu and Sb in two silt samples collected from the creek draining the MLN cl 1-10.
Homestake discovered and staked a series of showings within a 7-10 m thick horizon of Late Proterozoic to Early Cambrian Hyland assemblage quartzite/calcareous grit/ limestone conglomerate on the Java claims. The showings consist of dissemminated to massive sulfide mineralization hosted in skarn lenses within this horizon. Chip sampling returned 1.49 g/t Au over 12.5 m. Disseminated to massive arsenopyrite and pyrite hosted in quartz-carbonate altered shear and fracture zones, pyrrhotite and chalcopyrite within the alteration halo of the syenite stocks and intrusive hosted quartz sulfide veins were also recognized. Grab sampling of these other styles of mineralization returned values up to 11.15 g/t Au.
Stream sediment samples collected by International Kodiak from the Bo claims were consistently elevated in Au and As while contour soil sampling on the MLN claims returned a number of elevated Au and As values.

Location Map

Last Updated: Jul 25, 2018

Work History

Year Work Type Comment
2006 Drilling: Diamond Ten holes, holes, 1698 m
2005 Drilling: Diamond Eighteen holes, 2220 m
2004 Geochemistry: Soil
1998 Geochemistry: Silt
1998 Geochemistry: Soil
1997 Geology: Bedrock Mapping
1997 Geochemistry: Rock
1997 Other: Prospecting
1996 Geochemistry: Soil Also rock sampling.
1996 Geology: Bedrock Mapping
1996 Other: Prospecting
1996 Trenching
1991 Geochemistry: Rock
1991 Geochemistry: Soil
1991 Geology: Bedrock Mapping
1991 Other: Prospecting
1990 Geochemistry: Soil
1990 Geology: Bedrock Mapping
1990 Other: Prospecting
1989 Geology: Bedrock Mapping
1988 Geochemistry: Rock Also soil samples.
1988 Geology: Bedrock Mapping
1988 Other: Prospecting
1981 Geology: Bedrock Mapping
1975 Drilling: Diamond Four holes, 199.64 m
1975 Geology: Bedrock Mapping
1975 Trenching: Hand
1973 Geochemistry: Rock Also soil sampling.
1973 Geology: Bedrock Mapping
1973 Trenching: Hand
1972 Geochemistry: Soil Also rock sampling.
1972 Geology: Bedrock Mapping
1972 Trenching: Hand
1971 Drilling: Portable Two holes attempted.
1971 Geochemistry: Soil Also rock sampling.
1971 Ground Geophysics: EM
1971 Trenching: Hand
1970 Geochemistry: Soil
1970 Ground Geophysics: EM
1970 Trenching: Hand

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: Yusezyu
Member:
Terrane: Laurentia
Period Max: Ediacaran
Age Max: 635 MA
Period Min: Ediacaran
Age Min: 542 MA
Rock Major: phyllite/shale/sandstone/grit/conglomerate/limestone
Rock Minor: marble
Reference: Green & Roddick (1972) - GSC Map 1283A
Geological Unit (1M): PCH
Geological Unit (250K): PCH6

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
096411 2013 Airborne Geophysical Interpretation of the Mike Lake Property Electromagnetic Airborne Geophysics, Gama-Ray Spectrometry Airborne Geophysics, Magnetic Airborne Geophysics
095029 2007 Assessment Report Describing the Geology, Mineralization and Diamond Drilling of the Mike Lake Property Diamond Drilling, Bedrock Mapping Geology, Prospecting Other 9 1822
094916 2006 Assessment Report Describing the Geology, Geophysics and Diamond Drilling of the Mike Lake Property Diamond Drilling, EM Ground Geophysics, Magnetics Ground Geophysics 17 2250
094614 2005 Assessment Report Describing the Geology, Geophysics and Diamond Drilling of the Mike Lake Property Diamond Drilling, Rock Geochemistry, Soil Geochemistry, Detailed Bedrock Mapping Geology, EM Ground Geophysics, IP Ground Geophysics, Magnetics Ground Geophysics 19 2462.55
094574 2004 Assessment Report Describing the Geology, Geochemistry and Prospecting at the Mike Lake Property Soil Geochemistry, Bedrock Mapping Geology, Prospecting Other, Data Compilation Pre-existing Data
094510 2004 Assessment Report Describing the Geology, Geochemistry and Prospecting at the Mike Lake Property Soil Geochemistry, Bedrock Mapping Geology, Prospecting Other
093922 1998 Assessment Report 1998 Geolgoical, Geochemical and Geophysical Program Mike Lake Property Magnetic Airborne Geophysics, Rock Geochemistry, Soil Geochemistry, Bedrock Mapping Geology, IP Ground Geophysics, Handblast Trenching
093880 1997 Report on the 1997 Assessment Work on the MLN Claims Rock Geochemistry, Silt Geochemistry
093010 1991 Geological and Geochemical Report on the LORRIE Property Rock Geochemistry, Soil Geochemistry, Detailed Bedrock Mapping Geology, Prospecting Other
092912 1990 Report on the 1990 Geological and Geochemical Exploration Work on the Lorrie Property Rock Geochemistry, Silt Geochemistry, Soil Geochemistry, Detailed Bedrock Mapping Geology, Prospecting Other
091446 1982 Report on the Geology of the Aine Claims Rock Geochemistry, Cursory Property Visit Other
062204 1981 Report on the Geology of the Aine Claims Rock Geochemistry, Cursory Property Visit Other
090917 1981 Report for Assessment Lake 1-30 Claims Rock Geochemistry, Detailed Bedrock Mapping Geology, Data Compilation Pre-existing Data
090124 1975 Report on the Mike Mineral Claims Diamond Drilling, Rock Geochemistry, Hand Trenching 4 189
060904 1973 Geological Report on the AA and GH Mineral Claims Rock Geochemistry, Detailed Bedrock Mapping Geology, Prospecting Other, Hand Trenching

Related References

Number Title Page(s) Document Type
092912 Report on the 1990 Geological and Geochemical Exploration Work on the Lorrie Property Assessment Report
093880 Report on the 1997 Assessment Work on the MLN Claims Assessment Report
090124 Report on the Mike Mineral Claims Assessment Report
060904 Geological Report on the AA and GH Mineral Claims Assessment Report
092817 Geological Mapping and Geochemical Sampling on the Lorrie Claims Assessment Report
091446 Report on the Geology of the Aine Claims Assessment Report
1999-1(D) Yukon Digital Geology Open File (Geological - Bedrock)
093010 Geological and Geochemical Report on the LORRIE Property Assessment Report
062204 Report on the Geology of the Aine Claims Assessment Report
093829 Assessment Report 1997 Sampling and Trenching Program Java Property Assessment Report
093967 Geological, Geochemical and Geophysical Report on the Oki-Doki Project Claims Assessment Report
093961 Geological, Geochemical and Geophysical Report on the Oki-Doki Project Claims Assessment Report
061494 Addendum Report, Propsoed Exploration Program, AS and GH Mineral Claims Assessment Report
BROCK000007 Geochemical survey maps - Mike Lake Intrusion, Lorrie Lake Intrusion, and Anvil Lake Intrusion Geochemical Map
BROCK000008 Sample location and rock geochemistry maps - Au - Lorrie Lake, Mike Lake, and Anvil Lake areas Geochemical Map
BROCK000009 Sample location map with additional markings - Java - Mike Lake property - Figure 5.2 Geochemical Map
BROCK000010 North Vein soil grid with markings - Java - Mike Lake property Geochemical Map
BROCK000011 Geological map with annotations - Lorrie property Geoscience Map (General)
Citations
Green, L.H., 1972. Geology of Nash Creek, Larsen Creek and Dawson map areas, Yukon Territory. Geological Survey of Canada, Memoir 364, 157 p.

Drill Core at YGS Core Library

Number Property Year Drilled Core Size Photos Data
SKDH08-018 Mike Lake 2008 NQ2 0 5
SKDH08-028 Mike Lake 2008 BTW 0 5
SKDH08-061 Mike Lake 2008 BTW 0 5
SK-05-02 Mike Lake 2005 0 3

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