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Page 5589, results 139701 - 139725

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Summary of seismic activity and its relation to geology and mining in the Sunnyside mining district, Carbon and Emery Counties, Utah, during 1967-1970
C. Richard Dunrud, Frank W. Osterwald, Jerome Hernandez
1973, Open-File Report 73-63
In the Sunnyside mining district, Utah, coal is mined under thick and variable overburden which is locally weakened by faults and other structural discontinuities. Stress changes and local stress concentrations produced by mining under these conditions often cause sudden and violent ruptures in the coal and surrounding rock mass. The...
Barite in Pakistan
F.L. Klinger, R.L. Richards
1973, Open-File Report 73-145
Before 1953 almost no barite deposits were known in Pakistan. Discovery of such deposits relatively close to oil fields in northern Pakistan in 1953 led to increased barite production from 1957 to 1961 and to doubling of production in 1962, firmly establishing new industry for the country. During 1962 and...
Regional gravity and magnetic surveys in the Albion Mountains area of southern Idaho
Don R. Mabey, Carol W. Wilson
1973, Open-File Report 73-165
Fault-bounded basins containing several thousand feet of sedimentary and volcanic rock of Cenozoic age are indicated by gravity lows in the Oakley area and in Upper-Raft River and Raft River Valleys. A gravity low and a magnetic high in the north end of Raft River Valley extends over the Cotterel...
Geology and mineral deposits of an area in the Departments of Antioquia and Caldas (Subzone IIB), Colombia
Tomas Feininger, Dario Barrero L., Nestor Castro, R.B. Hall
1973, Open-File Report 73-69
The Inventario Minero National (IMN), a four-year cooperative geologic mapping and mineral resources appraisal project, was accomplished under an agreement between the Republic of Colombia and the U. S. Agency for International Development from 1964 through 1969. Subzone IIB, consisting essentially of the east half of Zone comprises nearly 20,000...
Analyses of Pakistan coals
Edwin R. Landis, J.A. Reinemund, G.C. Cone, D.P. Schlick, William Kebblish
1973, Open-File Report 73-150
No abstract available. ...