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A microprobe study of placer gold and its origin in the lower Fraser River drainage basin, B.C
The compositions, in terms of Au, Ag, Cu, and Hg, of about 1200 placer and lode gold grains from the Fraser River drainage were determined by microprobe analysis. The lode samples are from the Bralorne and Cariboo Gold Quartz mines. Seventeen placer samples are from the Cariboo district and the Bridge River, Fraser River and their tributaries. Bralorne gold and many placer grains contain Hg which ranges up to 6%. Evidence is presented to show that this Hg is primary. Placer gold grains alsodoi:10.14288/1.0052428 fatcat:yslwvbiwcvdbpn5x77vtpd34gm