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File Created: 24-Feb-1988 by Garry J. Payie (GJP)
Last Edit:  23-Mar-2022 by Nicole Barlow (NB)

Summary Help Help

NMI
Name BB 38, SK-2, SCHAFT CREEK Mining Division Liard
BCGS Map 104G046
Status Showing NTS Map 104G07W
Latitude 057º 27' 05'' UTM 09 (NAD 83)
Longitude 130º 57' 51'' Northing 6369330
Easting 382135
Commodities Copper Deposit Types L04 : Porphyry Cu +/- Mo +/- Au
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The BB 38 region is underlain by mafic to intermediate lapilli tuff, lesser ash, breccia, tuffite, aphyric or plagioclase and augite-phyric and coarse-bladed plagioclase porphyry flows and sills of the Upper Triassic Stuhini Group. Middle to Late Triassic medium-grained equigranular augite diorite and gabbro of the Stikine Plutonic Suite are in contact with the Stuhini rocks north of Skeeter Lake. Biotite granite to tonalite of the Late Devonian Forrest Kerr Plutonic Suite and Pennsylvanian carbonate rock of the Stikine Assemblage are fault contact with the Stuhini rock to the immediate east.

The BB 38 showing consists of altered felsic/granitic dike intruded into a sheared andesite. Minor magnetite and minor chalcopyrite mineralization are associated with this dike. Several copper mineralized outcrops occur. The MINFILE location plot is is that of the intruded dike outcrop with copper mineralization. Other copper mineralized locations occur about 150 metres east and 225 metres east of the dike.

The location of Tecks 1981 drill hole is located on the road about 330 metres to the northwest of the BB 38 MINFILE location. The hole was drilled on a high metal factor IP anomaly. Monolithic augite porphyry fragmental volcanic rock with up to 10 per cent magnetite was encountered. The I.P. anomaly is explained by the magnetite. A trace amounts of pyrite and chalcopyrite were also found. Teck drilled 7 holes (SK-1 to SK-7) along a north-south access road over 5 kilometres. All drill holes were reported to have cored andesitic fragmental rocks, pyroclastics, tuffs and flows.

Work History

During 1971 Hecla Operating Company performed a soil geochemical survey for copper, a ground magnetometer survey, and geological mapping of the Skeeter Lake valley. A few minor chalcopyrite showings were located, and several small weakly anomalous soil areas outlined. The magnetometer survey helped correlation of geology.

In 1973 Hecla surveyed four reconnaissance induced polarization lines on the claim group. Possible anomalous results were obtained on all four lines, but the lines were too widely spaced for correlation.

In 1981 Teck Explorations Limited contracted Phoenix Geophysics Ltd. to survey 15.6-line kilometres of induced polarization on lines spaced 300 metres apart. Several anomalous zones were identified and tested by drilling of seven 122-metre-deep diamond-drill holes. Teck's hole SK-2 was drilled on the road a few hundred metres to the northwest of the BB 38 showing.

In 2015, Teck Resources reported new mineralization north of Skeeter Lake (Skeeter showing). See Schaft Creek (104G 015) for further details of work done by Teck Resource in the area of the Schaft Creek claims.

Bibliography
EMPR ASS RPT 2961, *3640, 4842, 9643, *10067, 33242, 33937, 35967
EMPR GEM 1970-49; 1971-49; 1972-527; 1973-39
EMPR EXPL 1975-80,194
GSC P 71-44
GSC MEM 246
GSC MAP 9-1957; 11-1971; 1418A
Tetra Tech Canada Inc. (2021-01-15): Mineral Resource Estimate Update for the Schaft Creek Property, British Columbia, Canada

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