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Use of subaudible noises for the prediction of rock bursts. Part II / by Leonard Obert and Wilbur I. Duvall.

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Online Access:	Search for the full-text version of this title in HathiTrust
Main Author:	Obert, Leonard, 1906-
Other Authors:	Duvall, Wilbur I.
Other title:	Technical report archive and image library.
Format:	Government Document Book
Language:	English
Published:	[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, 1942.
Series:	Report of investigations (United States. Bureau of Mines) ; 3654.
Subjects:	Rock bursts. Rock mechanics. Rocks > Testing.

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Call Number:	I 28.23:3650-3675
I 28.23:3650-3675	Available Place a Hold Contents The following works are all found in the book indicated by the call number above. Lamellar grading of powdered mica / by Foster Fraas and Oliver C. Ralston. Manganese investigations : ore-dressing studies of manganese ores. [No.] 17, Concentr... The National safety competition of 1941 / by W.W. Adams and T.D. Lawrence. Mineral dressing of Oregon beach sands. 1, Concentration of chromite, zircon, garnet... Manganese investigations - : metallurgical division. 18, Pyrometallurgical studies of... Annual report of the Mining Division : fiscal year 1942 / by Chas. F. Jackson. Contact potential in electrostatic separation / by Foster Fraas and Oliver C. Ralston... Physical properties of cokes from Bureau of Mines-American Gas Association tests at 8... Size consist, chemical analysis, and physical properties of 2-1/2-inch subbituminous... Progress reports - : metallurgical division. 56, Silver-recovery studies : some facto... Stemming in metal mines : progress report 5. Comparison of dust and gases produced fr... Progress reports - Metallurgical. [No.] 56, Possible substitutes for nickel in the pr... Crude oils of New Mexico / by E.C. Lane. Graphical correlation of recovery and product composition in separation processes / b... Productivity of oil wells and inherent influence of gas : oil ratios and water satura... Hazards due to electric shock transmitted across discharge spray of compressed carbon... Carbonization of Bevier-Bed coal from Kansas and production of Blue Water Gas from th... Annual report of the Explosives Division, fiscal year 1942 / by Wilbert J. Huff. Cushioned blasting. Part II, Preliminary studies of gallery testing / by A.R.T. Denue... Report of the nonmetals division : fiscal year 1942 / by O.C. Ralston and A. George S... Active list of permissible explosives and blasting devices approved prior to June 30,... Inflammability of trichloroethylene-oxygen-nitrogen mixtures / by G.W. Jones and G.S.... Moisture losses in sampling coal / by H.M. Cooper, N.H. Snyder, and R.F. Abernethy. Use of subaudible noises for the prediction of rock bursts. Part II / by Leonard Ober... Manganese investigations - : metallurgical division. 15, Hydrometallurgical studies o...