A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
June 29 n 26 1928 p 521-522: Geological outline of alluvial deposits; article chiefly reviews deposits of British Columbia; sources of gold or mineral; disintegrated stockworks; veins at or near junction of slates and granites; fallacy of belief that minerals never found further than 4 mi. away from source; pre-glacial deposits usually coarse gold, postglacial fine; source of "big stuff" is debatable. July 6 n 27 1928 p 546-547: Possibilities of working placer property by hydraulic mining methods. July 20 n 29 p 580-582: Outlines four main methods; simple hydraulicking, hydraulicking combined with hydraulic elevating, suction dredging or suction elevating, and bucket dredging. July 27 n 30 p 600-602: Methods of securing water under pressure. Aug 10 n 32 1928 p 639-641 12 figs.: Water supply; dam; ditches; flumes; penstock; pipe lines; recovery of minerals; handling boulders; clean-ups.
June 29 n 26 1928 p 521-522: Geological outline of alluvial deposits; article chiefly reviews deposits of British Columbia; sources of gold or mineral; disintegrated stockworks; veins at or near junction of slates and granites; fallacy of belief that minerals never found further than 4 mi. away from source; pre-glacial deposits usually coarse gold, postglacial fine; source of "big stuff" is debatable. July 6 n 27 1928 p 546-547: Possibilities of working placer property by hydraulic mining methods. July 20 n 29 p 580-582: Outlines four main methods; simple hydraulicking, hydraulicking combined with hydraulic elevating, suction dredging or suction elevating, and bucket dredging. July 27 n 30 p 600-602: Methods of securing water under pressure. Aug 10 n 32 1928 p 639-641 12 figs.: Water supply; dam; ditches; flumes; penstock; pipe lines; recovery of minerals; handling boulders; clean-ups.
British Columbia. Hydraulic mining
Can. Min. Jl
Robertson, J.H. (author)
1928
12 Figs.
Article (Journal)
English
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