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Investigation of Nightingale tungsten deposit, Pershing County, Nev
Ore is mined from nearly vertical tactite bodies at limestone granite contact; Bur of Mines excavated 944 linear ft of trenches, drifted 52 linear ft, sunk shaft 20 ft in depth, sampled underground workings by cutting 743 linear ft of channels, sampled surface trenches by cutting 415 linear ft of channels, and drilled 9 diamond drill holes, totaling 3000 ft; assay maps; drill hole logs, etc.
Investigation of Nightingale tungsten deposit, Pershing County, Nev
Ore is mined from nearly vertical tactite bodies at limestone granite contact; Bur of Mines excavated 944 linear ft of trenches, drifted 52 linear ft, sunk shaft 20 ft in depth, sampled underground workings by cutting 743 linear ft of channels, sampled surface trenches by cutting 415 linear ft of channels, and drilled 9 diamond drill holes, totaling 3000 ft; assay maps; drill hole logs, etc.
Investigation of Nightingale tungsten deposit, Pershing County, Nev
U S Bur Mines -- Report Investigations
East, Jr., J.H. (author) / Trengove, R.R. (author)
1950
8 pages
Supp plates
Report
English
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