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File Created: 10-Aug-1998 by Garry J. Payie (GJP)
Last Edit:  08-Feb-2021 by George Owsiacki (GO)

Summary Help Help

NMI
Name B31, COPAU Mining Division Liard
BCGS Map 104H082
Status Showing NTS Map 104H13W
Latitude 057º 48' 18'' UTM 09 (NAD 83)
Longitude 129º 45' 13'' Northing 6407250
Easting 455213
Commodities Copper Deposit Types L03 : Alkalic porphyry Cu-Au
Tectonic Belt Intermontane Terrane Plutonic Rocks, Stikine
Capsule Geology

The B31 occurrence is located about 2 kilometres to the northeast of Ealue Lake, approximately 14 kilometres east-southeast of the village of Iskut.

A sample of a 5 to 10 centimetre sulphide-rich area in megacrystic syenite assayed 0.34 per cent copper (Open File 1997-3, Table 1 - Sample B32 (Field No. CAS94-015)). This sample was taken in 1994 during a regional mapping program by the British Columbia Geological Survey. The syenite is likely related to the Late Triassic-Early Jurassic alkali granite/felsite stocks that intrude Lower-Middle Jurassic Hazelton Group andesitic rocks several kilometres to the west.

Petrographic examination of three rock samples taken in 2011 indicate that magnetite, chalcopyrite and lesser pyrite occur in proximity to fractures and cataclastic microstructures. Magnetite is fractured and partially to completely replaced by hematite and iron oxides, and chalcopyrite is partially replaced by iron oxides. Hostrocks are described as fine grained porphyritic syenite, altered syenite breccia and syenite breccia (Assessment Report 32960).

In 2011, R. Day conducted reconnaissance prospecting to verify the showing and rock type and collected three rock samples for petrographic study. A ground magnetic survey was also conducted over 9.3 line kilometres.

In 2012, Frontier Geosciences Inc. carried out an induced polarization (IP) survey for Victory Ventures Inc. at the Copau claims property. The survey follows a previous magnetic survey completed in 2011 by Geolink Exploration Ltd. The survey consisted of 10 lines totalling approximately 11.5 kilometres of coverage.

One deep diamond-drill hole (472 metres) was drilled from the Ealue Lake access road on the west side of the Copau property in June 2013. This hole was drilled to investigate an induced polarization (IP) chargeability anomaly as discovered by survey work carried out on the western portion of the Copau property by Frontier Geosciences Inc. in 2012. No mineralization or rock alteration of economic interest was seen in the drillhole, with the IP anomaly likely explained by the conductive nature of the carbonaceous mudstone unit prevalent throughout the lower portion of the drillhole (Assessment Report 34446).

Bibliography
EMPR ASS RPT *32960, 33292, 34446
EMPR FIELDWORK 1976, pp. 71-73; 1994, pp. 343-358; 1995, pp. 155-174; 1996, pp. 283-290, 291-297
EMPR OF 1992-1; 1992-3; 1996-4; *1997-3
EMPR PFD 904536
GSC MAP 1957-9
GSC OF 1005; 1080; 2241

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