British Columbia Ministry of Energy, Mines and Natural Gas and Responsible for Housing
News | The Premier Online | Ministries & Organizations | Job Opportunities | Main Index

MINFILE Home page  ARIS Home page  MINFILE Search page  Property File Search
Help Help
File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  24-Mar-2022 by Nicole Barlow (NB)

Summary Help Help

NMI 094E6 Pb3
Name MOOSE 1, MOOSE, BULL MOOSE, WAS 1, SCREE, GAS Mining Division Liard, Omineca
BCGS Map 094E044
Status Prospect NTS Map 094E06E
Latitude 057º 28' 55'' UTM 09 (NAD 83)
Longitude 127º 13' 28'' Northing 6372430
Easting 606450
Commodities Silver, Gold, Zinc, Lead, Copper Deposit Types H05 : Epithermal Au-Ag: low sulphidation
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The Moose 1 prospect is located approximately 18 kilometres north-northwest of the Lawyers Mine (094E 066), some 280 kilometres north of Smithers. The showing lies within the Omineca-Cassiar Mountains at the southern end of the Toodoggone gold camp. The prospect is situated within a Mesozoic volcanic arc assemblage which lies along the eastern margin of the Intermontane Belt, a northwest-trending belt of Paleozoic to Tertiary sediments, volcanics and intrusions bounded to the east by the Omineca Belt and to the west and southwest by the Sustut and Bowser basins.

Permian Asitka Group crystalline limestones are the oldest rocks exposed in the region. They are commonly in thrust contact with Upper Triassic Takla Group andesite flows and pyroclastic rocks. Takla volcanics have been intruded by the granodiorite to quartz monzonite Black Lake Suite of Early Jurassic age and are in turn unconformably overlain by or faulted against Lower Jurassic calcalkaline volcanics of the Toodoggone Formation, Hazelton Group.

The dominant structures in the area are steeply dipping faults which define a prominent regional northwest structural fabric trending 140 to 170 degrees. In turn, high angle northeast-striking faults (approximately 060 degrees) appear to truncate and displace northwest-striking faults. Collectively these faults form a boundary for variably rotated and tilted blocks underlain by monoclinal strata.

The Moose silver-base metals zone includes discrete quartz-sulphide veins and breccia zones within a north-northwest-striking, moderately southeast-dipping zone which is some 300 metres long and up to 30 metres thick. Previous diamond drilling returned silver values of greater than 100 grams per tonne over limited hole lengths (Assessment Report 28043).

Initial property exploration, in the area of the Moose 1 prospect, was focused on lead and zinc sulphides in quartz veins about 675 metres southeast and along strike from the present Moose 1 prospect. Early geochemical surveys outlined an area 1500 metres long with anomalous, silver, lead, zinc and copper in soils. Follow-up geochemistry, geophysics and geology revealed local mineralization, confirming previous geochemical anomalies.

The Moose 1 prospect is underlain by intermediate porphyritic rocks of the Toodoggone Formation. These include feldspar hornblende crystal and crystal lapilli tuffs and tuff breccias, a thin ash-fall tuff and lesser dacite porphyry flows. Cutting this sequence is a small diorite plug and diorite porphyry along with narrow and scattered basalt and andesite dikes. Dikes are uncommon around the Moose 1 prospect but are widespread to the east. The volcanic sequence appears to dip moderately to the northeast. Observed faults have northwest and east-southeast to southeast strikes. The most important structural feature is a vertical shear and fracture zone that extends northwestward from McClair Creek to Moosehorn Creek.

Hydrothermal alteration zones, including the Moose 1 prospect, are marked by an increase in propylitic alteration consisting of chlorite and epidote, to phyllic consisting of sericite, chlorite, carbonate and pyrite, to complete silicification. Silicified zones are commonly banded and/or brecciated and contain varying amounts of quartz, amethyst, barite, chlorite, sphalerite, pyrite, galena, chalcopyrite and acanthite. Silicified zones display sharp contacts with altered wallrocks. True veins are rare. Breccias are lens-shaped in plan view and display pinch and swell textures in outcrop; the largest breccia lens is 5 metres long by 1 metre wide. Typically, breccia bodies occur in southeast-striking, southwest- dipping fractures. Sulphide content varies from trace up to 30 per cent. There appears to be a close association between anomalous silver and barite. Gold values are generally low.

Adularia-sericite type epithermal mineralization at the Moose 1 prospect consists of a breccia-fault system hosting sphalerite, galena, chalcopyrite and acanthite mineralization over 1.5 to 5 centimetre widths. The zone is partially exposed in outcrop covering a surface area of about 65 metres long by 23 metres wide and trending east-southeast. Mineralization has been intersected in drillholes covering an area about 40 metres long by 25 metres wide. A maximum thickness of 3.44 metres is indicated by drilling.

In 1979, sampling of trench 24E, located approximately 400 metres southeast of the later 1985 drilling, yielded values of up to 0.10 gram per tonne gold, 0.10 per cent lead and 0.14 per cent zinc over 2.74 metres and 6.2 grams per tonne silver with 0.11 per cent zinc over 0.91 metre (Assessment Report 8058).

In 1980, a collection of grab samples (18709) from trench 24E assayed 19.5 grams per tonne silver, 0.27 per cent copper, 2.8 per cent lead and 2.8 per cent zinc, and a chip sample (18710) taken along strike a short distance to the northwest yielded 11.6 grams per tonne silver, 1.76 per cent lead and 2.85 per cent zinc over 1.0 metre (Assessment Report 9269). Also at this time, a rock sample (18713) taken from near trench 36E, located approximately 400 metres southeast of the previous trench, assayed 32.6 grams per tonne silver, 0.30 per cent copper, 1.62 per cent lead and 1.29 per cent zinc, and a sample (18715) taken from a 2-centimetre wide mineralized quartz vein located approximately 300 metres northwest of trench 24E yielded 79.9 grams per tonne silver, 0.28 per cent lead and 0.57 per cent zinc (Assessment Report 9269).

A drill program, consisting of 16 holes totalling 806.7 metres, was completed in 1985. All holes, except drillholes 85-M-14 and 85-M-15, intersected significant silver mineralization. The best intercepts were from drillhole 85-M-6 with assay results of 2610.0 grams per tonne silver, 1.95 grams per tonne gold, 13.58 per cent zinc and 4.60 per cent lead over 0.31 metre (Assessment Report 13961).

Also in 1985, surface sampling of the drilled mineralized zone yielded values of up to 5340 grams per tonne silver; 21 chip and channel samples, taken at intervals along 150 metres of strike, averaged 1026 grams per tonne silver over narrow widths; a grab sample (R-1) from the 24E trench area yielded 0.105 gram per tonne gold, 506.5 grams per tonne silver, 1.20 per cent lead and 0.74 per cent zinc and two samples (B-135 and R-24) from the 34E trench area yielded up to 0.97 gram per tonne gold, 14.3 grams per tonne silver, 0.158 per cent copper, 1.36 per cent lead and 1.87 per cent zinc (Assessment Report 13961).

Work History

The Moose silver-base metals zone is coincident with a zone of fracturing and shearing associated with the northwesterly-trending regional fault east of Moosehorn Creek. This zone was first investigated by Sumac Mines Ltd in the early 1980s while following up anomalous values obtained from soil sampling. Surface sampling of isolated bedrock exposures several years later by Texasgulf-Kidd Creek Mines showed the zone to consist of disseminated and vein-type occurrences of sphalerite, galena, pyrite and lesser chalcopyrite. Work on the Moose 1 includes drilling in 1985, GIS compilation in 2005 and Magnetic surveying in 2006. The Moose silver-base metals zone was tested by 806.7 metres of BQ diamond drilling in 16 inclined holes completed by New Ridge Resources Ltd in 1985 (Assessment Report 13961).

Refer to Porphyry Pearl (094E 084) which is the main prospect of a property worked on in the mid to late 2000s that contained 094E 031 (Moose 1), 084 (Porphyry Pearl), 165 (Scree 3), 166 (Scree 1), 167 (Calf Moose) and 188 (Horn). Work History for the Moose 1 area is given in the Porphyry Pearl prospect. Work on the Moose 1 includes drilling in 1985, GIS compilation in 2005 and Magnetic surveying in 2006.

Bibliography
EMPR AR 1968-149
EMPR ASS RPT *3832, *3834, *4061, *4062, *4592, 4631, 5072, 8058, *9269, *9832, 10291, 11238, *13961, 21797, 22226, *28043, 28865, 30312, 31159, 31715
EMPR BULL 86
EMPR EXPL 1978-E244; 1979-265; 1982-335; 1984-348
EMPR FIELDWORK 1980, pp. 126-127; 1981, pp. 125-126; 1982, pp. 126-127; 1983, pp. 137-138; 1984, pp. 292-293; 1984, pp. 292-293; 1985, pp. 168-169; pp. 299-300; 1986, pp. 114-115; 1988, pp. 413-415; 1989, pp. 409-412; 1990, pp. 207-216
EMPR GEM 1969-103; 1971-65; 1972-482,484; 1973-460-461; 1974-311,313
EMPR MAP 61 (1985); 65 (1989)
GSC BULL 270
GSC OF 306; 342; 483
GSC P 80-1A, pp. 27-32
W MINER June 1981
N MINER October 13, 1986
GCNL #165(Aug.27), 1986
ECON GEOL Vol. 86, pp. 529-554, 1991
Carter, N.C. (2007-05-01): Technical Report on the Porphyry Pearl Property, Including a Discussion of the Results of 2006 Geophysical Surveys and Recommendations for Additional Exploratory Work

COPYRIGHT | DISCLAIMER | PRIVACY | ACCESSIBILITY