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MINFILE Record Summary
MINFILE No  082FNE089
File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  29-Sep-2019 by Karl A. Flower (KAF)

 SUMMARY Summary Help Help

NMI
Name PICO, STAR, NINE LAKE Mining Division Fort Steele
BCGS Map 082F100
Status Showing NTS Map 082F16E
Latitude 049º 58' 23'' UTM 11 (NAD 83)
Longitude 116º 09' 50'' Northing 5535970
Easting 559955
Commodities Tungsten, Copper Deposit Types K05 : W skarn
I13 : Sn veins and greisens
I12 : W veins
Tectonic Belt Omineca Terrane Ancestral North America
Capsule Geology

Pico (Star) occurrence is located on the west side of Greenland Creek, just north of its junction with Nine Creek.

Regionally, the area is underlain by sediments of the Lower Aldridge Formation of the Proterozoic Purcell Supergroup.

In the vicinity of the occurrence, the Aldridge Formation consists of quartz wacke, quartz arenite, siltstone and lesser argillite intruded by thick gabbroic sills of the Moyie Intrusions. The sedimentary rocks are characteristically rusty weathering, fine to medium grained and thin to medium bedded. Individual beds range from a few millimetres to 30 centimetres thick. Discontinuous horizons of intraformational conglomerate were noted in a number of localities. Finely disseminated pyrrhotite is common. The sedimentary rocks of the Lower Aldridge have undergone both thermal and regional metamorphism to at least greenschist facies. Biotite alteration in the argillaceous units and quartz-sericite alteration in the arenite and wacke have generated widespread phyllitic and schistose textures.

The Proterozoic Moyie sills cutting the Lower Aldridge Formation are sill-like in overall form but often crosscut bedding or appear as irregular lenses. Some are in excess of 100 metres thick and can be traced almost 10 kilometres. The thicker sills have coarse-grained gabbroic cores and finer dioritic margins. They are all mainly composed of hornblende and plagioclase phenocrysts set in a matrix of similar composition (Paper 1990-1).

The White Creek Batholith is a well-differentiated Cretaceous granitic intrusion that cuts the Lower Aldridge rock to the east and south. Along the northern border of the batholith, a megacrystic granodiorite phase is common. Plagioclase phenocrysts are commonly 3 to 5 centimetres long, set in a matrix of fine- to medium-grained plagioclase, potassium feldspar, quartz and biotite. Magnetite and pyrite occur locally. Aplite and pegmatite dikes are common within the Lower Aldridge sedimentary rocks (Geological Survey of Canada Memoir 369).

Locally, as exposed by trenches, scheelite occurs in fractured stockwork zones of a garnet-diopside skarn in argillites and siltstones near the contact with a metadiorite sill. Wolframite, chalcopyrite, pyrrhotite, quartz, garnet, chlorite, epidote and calcite are also reported.

Another zone of scheelite mineralization is reported near the Burnt (MINFILE 082FNE022) occurrence to the southeast.

During the 1950s, Cominco examined the area as the Pico claims and completed programs of trenching and five diamond drill holes, totalling 436.5 metres. In 1968, a program of trenching and one diamond drill hole, totalling 30 metres, was completed. Some of this work was performed on the Burnt (MINFILE 082FNE022) occurrence to the southeast.

During 1971 through 1973, Kerr Addison Mines completed programs of soil and rock sampling, geological mapping, trenching and ground geophysical surveys on the area immediately west as the Nine Lake claims.

Bibliography
EM EXPL 1999-40-52
EM GEOS MAP 1998-4
EMPR AR 1957-64, 1958-52, 1968-267
EMPR ASS RPT 3927
EMPR EXPL 1975-E39, 1978-E66, 1979-73
EMPR GEM 1973-82
EMPR OF 90-20; 1991-17
EMPR PF (Chevron Standard Limited [unknown]: Map - Geochemistry - White Creek - Purcell Project C445; Unknown [Unknown]: Map - Skookumchuck and Buhl Creek area - Sampling - C445; Kerr Addison Mines Ltd. [unknown]: Mylar Overlays from 1973 Report - Nine Lake Claims; Kerr Addison Mines Ltd. [unknown]: Aeromagnetic maps of Dewar Creek property; Kerr Addison Mines Ltd. [unknown]: C.E.M. Test results at Nine Lake Group; unknown [unknown]: Claim map: Nine Lake; unknown [unknown]: Dewar Creek claim and geochemical maps; unknown [unknown]: Dewar Creek geochemical notes; unknown [unknown]: EM and Mag profile sketches at Nine Lake Claims; unknown [unknown]: EM and Mag profiles at Nine Lake; Kerr Addison Mines Ltd. [unknown]: Nine Lake EM and Mag profiles; Kerr Addison Mines Ltd. [1970-01-01]: Map showing location of the Nine Lake & BA Claims; Kerr Addison Mines Ltd. [1971-01-22]: Potential mineral zones recommended for further study at Dewar; Surveys and Mapping Branch [1971-01-01]: Aeromagnetic map of Findlay Creek Area - Dewar Creek property; Surveys and Mapping Branch [1971-01-01]: Aeromagnetic Flight Lines Map - Dewar Creek property; F. Chow [1971-05-01]: Dewar Creek Project Report; Kerr Addison Mines Ltd. [1971-06-01]: Elsec Aeromagnetic Survey for Dewar Creek Project; Vancouver Geochemical Laboratories Ltd. [1971-06-09]: Geochemical Analytical Reports - 1971 - Kerr Addison Mines Ltd. - Dewar Creek; W. M. Sirola [1971-07-13]: Correspondence re: Dewar Creek Project; Boxd, S. [1971-08-01]: Proposed E. M. Survey at Dewar; Kerr Addison Mines Ltd. [1971-08-01]: Aeromagnetic Survey - Finlay Creek, Dewar Creek - East Half - Canal Flats - West Half - Dewar Creek Project; Kerr Addison Mines Ltd. [1971-08-23]: Mc Mineral Claims and Nine Lake Staking Plan; Kerr Addison Mines Ltd. [1971-09-01]: Geochemical Survey - Silt and Soil Sampling Plan - Cu - Finlay Creek East Half and Dewar Creek East Half - Dewar Creek Project; Kerr Addison Mines Ltd. [1971-09-01]: Geochemical Survey - Silt and Soil Sampling Plan - Pb - Finlay Creek East Half and Dewar Creek East Half - Dewar Creek Project; Kerr Addison Mines Ltd. [1971-09-01]: Geology - Finlay Creek and Dewar Creek - East Half - Dewar Creek Project; Kerr Addison Mines Ltd. [1971-09-01]: Rock Geochem Plan - MC and Nine Lake Mineral Claims - Dewar Creek Project - Greenland Creek Area; Kerr Addison Mines Ltd. [1971-09-01]: Silt Sampling Plan - Cu - MC and Nine Lake Mineral Claims - Dewar Creek Project - Greenland Creek Area; Kerr Addison Mines Ltd. [1971-09-01]: Silt Sampling Plan - Pb - MC and Nine Lake Mineral Claims - Dewar Creek Project - Greenland Creek Area; Kerr Addison Mines Ltd. [1971-09-01]: Silt Sampling Plan - Zn - MC and Nine Lake Mineral Claims - Dewar Creek Project - Greenland Creek Area; Kerr Addison Mines Ltd. [1971-09-01]: Soil Sampling Plan - Cu Contour - MC and Nine Lake Mineral Claims - Dewar Creek Project - Greenland Creek Area; Kerr Addison Mines Ltd. [1971-09-01]: Soil Sampling Plan - Pb - MC and Nine Lake Mineral Claims - Dewar Creek Project - Greenland Creek Area; Kerr Addison Mines Ltd. [1971-09-01]: Soil Sampling Plan - Zn - MC and Nine Lake Mineral Claims - Dewar Creek Project - Greenland Creek Area; W. M. Sirola [1979-09-13]: Re: Claim maps - Dewar Creek; Kerr Addison Mines Ltd. [1972-01-01]: Proposed EM Survey and Fill-In Soil Survey; Kerr Addison Mines Ltd. [1972-01-01]: Proposed EM and Mag Surveys at Dewar; Kerr Addison Mines Ltd. [1972-01-01]: Proposed E. M. Survey at Dewar; Vancouver Geochemical Laboratories Ltd. [1972-03-02]: Geochemical Analytical Report - 1972 - Kerr Addison Mines Ltd. - Dewar Creek; F. Chow [1972-04-01]: Dewar Creek Project - 1971; F. Chow [1972-07-08]: Correspondence re: Dewar progress report; T. Larose [1978-08-02]: Sketch map at Dewar Creek; F. Chow [1972-08-04]: Correspondence re: Dewar; unknown [1972-08-13]: Mag. Diurnal Variation, Camp #4; Kerr Addison Mines Ltd. [1972-08-22]: Geochemical Soil Survey - Zinc - MC and Nine Lake Claim Grp. - Dewar Creek Project; Greenwald, W. [1972-08-26]: Geology Plan of Part of Nine Lake Claim Group; Kerr Addison Mines Ltd. [1972-08-26]: Geochemical Soil Survey - Lead - MC and Nine Lake Claim Grp. - Dewar Creek Project; Kerr Addison Mines Ltd. [1972-08-26]: Geophysical Plan (EM.) - Mc and Nine Lake Claim Group - Dewar Creek Project; Chow, F. [1972-08-26]: MC and Nine Lake Claim Group: Geological Plan; Chow, F. [1972-09-07]: Preliminary summary of Nine Lake Magnetometer and EM Survey; F. Chow [1973-02-01]: Dewar Creek Project - 1972; Vancouver Geochemical Laboratories Ltd. [1973-02-01]: Geochemical Analytical Report - 1973 - Kerr Addison Mines Ltd. - Dewar Creek; *Kerr Addison Mines Ltd. [1973-02-01]: Dewar Creek Project: Regional Tungsten Geochemical; Kerr Addison Mines Ltd. [1973-02-01]: Geochemical Plan (Tungsten) - Nina Lake Claims; unknown [1973-03-02]: Rock Specimens at Nine Lake claims; Sirola, W. M. [1973-03-21]: Dewar Creek Project 1972 Report; Kerr Addison Mines Ltd. [1973-03-29]: Proposed trenching at Nine Lake; W. Grunewald [1973-03-30]: Evaluation of Tungsten - Soil, Silt and Rock Geochemistry - Dewar Creek Project 1973; Chow, F. [1973-04-01]: Nine Lake Claims: Geochemical Plan, Tungsten and Tin; W.M. Sirola [1973-04-06]: Addendum to Dewar Creek Report; unknown [1973-04-20]: Claim map at Dewar Creek; Chow, F. [1973-04-26]: Proposed road and trenching locations at Dewar; Kerr Addison Mines Ltd. [1973-06-01]: 1971 Regional Geochemical Survey - Headwaters of Finlay and Skookumchuck Cr. - Showing Mo Distribution Plus Spot Analysis of W and Sn - Nine Lake Mineral Claim Area; unknown [1973-07-29]: Field sample notes at Dewar Creek; Kerr Addison Mines Ltd. [1973-08-01]: Topographic survey at Dewar Creek Project; Warnock Hersey International Ltd. [1973-08-08]: Dewar Creek Nine Lake assay results; Chow, F. [1973-09-06]: Nine Lake Group: Trench Sampling Assay Certificates; Kerr Addison Mines Ltd. [1973-11-01]: Geochemical Soil Survey - Molybdenum Values Along "White Creek Batholith" Contact at Nine Creek - MC and Nine Lake Claim Grp. - Map No. 4E (South Half); Kerr Addison Mines Ltd. [1973-11-01]: Geological Plan - MC and Nine Lake Claim Group - Dewar Creek Project; *F. Chow [1974-01-01]: Dewar Creek Project - 1973; Vancouver Geochemical Laboratories Ltd. [1974-01-09]: Geochemical Analytical Report - 74-48 - Kerr Addison Mines Ltd. - Dewar Creek; Kerr Addison Mines Ltd. [1974-01-14]: Claim Map of Nine Lake and MC Group - Showing Status of Mineral Claims - Dewar Creek Project; F. Chow [1974-01-25]: Dewar Creek Project: Geochem research and investigation; Hajek, J. H. [1974-01-30]: Geochemical Assessment of January 1974 Analyses, Dewar Creek Project; Sirola, W. M. [1974-01-30]: Re: Dewar Creek Project: Results of geochemical consultation; Sirola, W.M. [1974-01-31]: Letter Re: Dewar Creek Project - Fred Chow's Report on 1973 Field Work; Kerr Addison Mines Ltd. [1974-03-25]: Claim maps - Nine Lake; Unknown [1975-01-01]: Proposed geochemical deep soil sampling at Nine Lake Group; Vangeochem Lab Ltd. [1975-08-27]: Geochemical Analytical Report - 1975 - Kerr Addison Mines Ltd. - Dewar Creek; Unknown [1976-07-15]: Field Notes - Skookumchuck Creek area - C445; Unknown [1976-07-16]: Map - Skookumchuck Mountain area - Sampling - C445; Chevron Standard Ltd. [1976-12-01]: Report on Explorations in Southeastern British Columbia - The Nelson and Fort Steele Mining Divisions - C445 - Geophysical - Geochemical; J.R. Woodcock Consultants Ltd. [1979-12-01]: Map - Regional Geology and Mineral Prospects - Rio Moly Project; Eagle Plains Resources Ltd. [1998-04-30]: Annual Report - 1997 - Eagle Plains Resources Ltd. - Findlay Creek Project)
EMPR PFD 1650, 825292, 825296, 825298, 825301, 825305, 825306, 825307, 825309, 825310, 825311, 825312, 825313, 825314, 825315, 825316, 825317, 825319, 825320, 825321, 825323, 825326, 825327, 825328, 825331, 825333, 823146, 823147, 823148, 823149, 822550, 822551, 822552, 822553, 822554, 822555, 822556, 822559, 822565, 825308, 825335, 825338, 825336, 825342, 825343, 825344, 825337, 825347, 822831, 822834, 822835, 822836, 822837, 824122, 824123, 824124, 800665, 600093, 841759, 841777, 841778, 841779, 841794, 843325, 827887, 827888
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