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Page 1427, results 35651 - 35675

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Measurement of earth pressures by means of the flat jack test
P. Habib, R. Marchand, Severine Britt (translator)
1953, Open-File Report 54-31
This study deals with the principle and application of a method of measuring the stresses around a rock gallery. The measuring principle consists of cutting a drain in a gallery wall, observing the corresponding stress lessening, then restoring the initial state of stress by means of a Freyssinet flat jack. The...
Preliminary report of the Centennial Range, Montana-Idaho
Frederick Sauli Honkala
1953, Open-File Report 53-123
Phosphate rock is present in the Phosphoria formation of Permian age in the Centennial Range of southwestern Montana and adjoining parts of Idaho. A Study was made to map the Phosphoria formation, study its stratigraphy, and to ascertain the reserves and mining problems. In the Centennial Range the Phosphoria formation...
Geology of the Olds Mountain-Clark Peak area, Juneau and vicinity, Alaska
C.L. Sainsbury
1953, Open-File Report 53-231
The area under study lies about ten miles east of Juneau, Alaska, and includes the bedded rocks adjacent to the Coast Range batholith, and intrusive rocks related to the batholith. Deep glaciated valleys and glacially scoured rocks are the major topographic features. The relief is about 3,500 feet, and the highest...
A preliminary report of geochemical investigations in the Blackbird District
F. C. Canney, H. E. Hawkes, G.M. Richmond, J. S. Vhay
1953, Open-File Report 53-31
This paper reviews an experimental geochemical prospecting survey in the Blackbird cobalt-copper mining district. The district is in east-central Idaho, about 20 miles west-southwest of Salmon. The area is one of deeply weathered nearly flat-topped upland surfaces cut by steep-walled valleys which are tributary to the canyon of Panther Creek....