MINFILE Mineral Inventory

MINFILE Record Summary

MINFILE No 082ESE267

File Created:	12-Dec-2005	by	Garry J. Payie (GJP)
Last Edit:	09-Jun-2020	by	Nicole Barlow (NB)

SUMMARY

Summary Help


		NMI
Name	GOLDEN CACHE, VACHER	Mining Division	Greenwood
		BCGS Map	082E007
Status	Showing	NTS Map	082E02E
Latitude	049º 01' 03''	UTM	11 (NAD 83)
Longitude	118º 37' 35''	Northing	5430675
		Easting	381086
Commodities	Gold, Copper, Magnetite	Deposit Types	L04 : Porphyry Cu +/- Mo +/- Au K03 : Fe skarn
Tectonic Belt	Omineca	Terrane	Quesnel

Capsule Geology

The area is underlain by ultramafic rocks of the Carboniferous to Permian Mount Roberts Formation(?) and chert, siliceous argillite, siliciclastic rocks of the Devonian to Permian Knob Hill Group. Middle Jurassic granite and alkali feldspar granite intrude the country rock.

At the Golden Cache, gold and copper mineralization is focused along a sheared serpentinite-dacite contact. Bands of massive magnetite and subordinate bands of massive pyrite or altered serpentinite with magnetite characterize the style of mineralization. In 1993, a trench exposed a 2 metre zone grading 5.04 grams per tonne gold and 2.22% copper (0.75 metre true width) (Assessment Report 27393). Follow-up drilling in the area of the trenching cut similar mineralization in several localities along the contact. The best intercept averaged 2.16 grams per tonne gold and 0.768 per cent copper across 0.9 metres. Post mineral andesite dykes cut this mineralization in places.

A further 250 metres north of the Golden Cache lies the Vacher Zone. Here, the gold mineralization is hosted in a foliated albite leucogranite dyke intruding altered serpentinite. The dyke trends 080 degrees and dips 45 northnorth. Low gold values are linked to the most intense zones of silicification, sericite and pyrite. The silicification is in the form of quartz veinlets and silica flooding.

Canadian Pawnee Oil Corp were reported to have drilled four NQ holes in the Vacher area and three in the Golden Cache area in 1988. Four diamond drill holes were reported drilled by Britannia Gold Corp. in 1992. The Golden Cache area had backhoe trenching, geological mapping, core re-logging, diamond drilling and ground magnetics completed in 1993.

By 2005, the Golden Cache was part of the Lexington property of Gold City Industries Ltd. See Lexington (MINFILE 082ESE041) for further details.

Bibliography

EMPR ASS RPT 22919, *23300, 24614, 24901, *27393

EMPR MR MAP 6 (1932)

EMPR OF 1990-25

EMPR P 1986-2

EMPR PF

EMPR PRELIM MAP 59

GSC MAP 828; 45-20A; 6-1957; 10-1967; 1500A; 1736A

GSC OF 481; 637; 1969

GSC P 67-42; 79-29

EMPR PFD 1119, 1120, 801933, 843193

Collins, J., Cowley, P., Puritch, E., Roxburgh, J. (2007-05-22): Technical Report and Preliminary Economic Assessment on the Greenwood Gold Project.

Brown, F., Cowley, P., Puritch, E. (2016-04-08): Technical Report and Updated Mineral Resource Estimate for the Greenwood Gold Project.

Brown, F., Burga, E., Cowley, P., Hayden, A., Pearson, J., Puritch, E., Wright, F. (2016-05-20): Updated Preliminary Economic Assessment on the Greenwood Gold Project.

Brown, F., Burga, E., Cowley, P., Hayden, A., Pearson, J., Puritch, E. (2016-06-20): Preliminary Economic Assessment on the Greenwood Gold Project.

Brown, F., Burga, E., Cowley, P., Hayden, A., Pearson, J., Puritch, E. (2017-06-02): Updated Preliminary Economic Assessment on the Greenwood Precious Metals Project.