A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Investigation of guadalupe mercury mine, Santa Clara County, Calif
History; mine workings; cinnabar deposits in altered porous carbonate silica rock; Bur of Mines work involved repairing roads, bulldozing 13 trenches to provide for sampling, digging and sampling of hand trenches, digging and sampling numerous test pits, and drilling 7 diamond drill holes, totaling 1000 ft; total of 419 samples were taken.
Investigation of guadalupe mercury mine, Santa Clara County, Calif
History; mine workings; cinnabar deposits in altered porous carbonate silica rock; Bur of Mines work involved repairing roads, bulldozing 13 trenches to provide for sampling, digging and sampling of hand trenches, digging and sampling numerous test pits, and drilling 7 diamond drill holes, totaling 1000 ft; total of 419 samples were taken.
Investigation of guadalupe mercury mine, Santa Clara County, Calif
U S Bur Mines -- Report Investigations
Bedford, R.H. (author) / Ricker, S. (author)
1950
9 pages
Supp plates
Report
English
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