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File Created: 22-Oct-2014 by Garry J. Payie (GJP)
Last Edit:  26-Sep-2020 by George Owsiacki (GO)

Summary Help Help

NMI
Name BIGTIME D, BIGTIME Mining Division Omineca
BCGS Map 093M090
Status Showing NTS Map 093M16E
Latitude 055º 53' 12'' UTM 09 (NAD 83)
Longitude 126º 04' 40'' Northing 6197328
Easting 682758
Commodities Copper Deposit Types L04 : Porphyry Cu +/- Mo +/- Au
Tectonic Belt Intermontane Terrane Stikine, Cache Creek, Plutonic Rocks
Capsule Geology

The Bigtime D occurrence is located just southwest of Ominicetla Creek about 200 kilometres northwest of the community of Fort St. James.

The Bigtime D showing area is underlain primarily by the Lower Jurassic Telkwa Formation (Hazelton Group) consisting of a sequence of subaerial to submarine calc-alkaline island arc volcanic and sedimentary rocks. Cretaceous to Eocene volcanic and sedimentary rocks of the Sustut Group are also present. The Telkwa Formation rocks are intruded by small plugs of quartz and hornblende feldspar porphyry of unknown age and a large plug of biotite hornblende diorite of Late Jurassic age.

A pyritic, ankeritic zone occurs in Telkwa Formation crystal lapilli tuff or diorite. Malachite and a shear are also noted. In 2009, a number of samples were taken in this area including samples 880581-588. One rock sample (B880585) yielded 0.32 per cent copper (Figure 8.5, Assessment Report 31410).

In 2009, Amarc Resources Ltd. completed a program of geological mapping, prospecting, rock (184) and soil (519) sampling, and an induced polarization survey (11.7 kilometres).

See Lion (093M 146), located 2.1 kilometres north, for details on the Bigtime D work history.

Bibliography
EMPR ASS RPT 4725, *31410
EMPR BULL 64
EMPR OF 1990-32; 1992-1; 1990-32; 1992-1; 1992-3; 1998-10; 2008-6
EMPR PFD 671220, 671223
GSC OF 551; 720; 2322; 5705
GSC P 44-24; 51-10, p. 43

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