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Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
10 results returnedGeophysical methods of prospecting :a brief and elementary account of the principles involved
Geophysical investigations at Caribou, Colo.
The design of small wooden head frames
Prospect trenching with caterpillar-mounted angledozers
A method for surveying drill holes by oriented drill rods
A study of fault determinations by geophysical methods in the fluorspar areas of Western Kentucky
Published Year
Subject
- Prospecting (10) *
- Geophysics (3)
- Gold mines and mining (2)
- Boring (1)
- Drill pipe (1)
- Fluorspar mines and mining--Kentucky--Crittenden County (1)
- Geology--Colorado--Caribou (1)
- Limestone (1)
- Limestone industry--United States--History (1)
- Mines and mineral resources (1)
- Mining engineering (1)
- Placer mining (1)
Author
- Ayvazoglou, W. (1)
- Bowles, Oliver, (1)
- Clawson, Marion. (1)
- Cohen, C. J. (1)
- Dahners, L. A. (1)
- Eve, A. S. (1)
- Gardner, E. D. (1)
- Heiland, C. A. (1)
- Hemberger, S. J. (1)
- Henderson, Charles W. (1)
- Keys, D. A. (1)
- Lee, Frederick William, (1)
- Lorain, S.H. (1)
- Malkovsky, Jaroslav A., (1)
- Staley, W. W. (1)
- West, John M. (1)
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