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Page 5699, results 142451 - 142475

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Publication Extents

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Geology and economic potential for chromite in the Zhob Valley ultramafic rock complex, Hindubagh, Quetta division, West Pakistan
Darwin L. Rossman, Zaki Ahmad, Hamidur Rahman
1971, Open-File Report 71-242
The ultramafic rocks making up the Zhob Valley igneous complex have yielded small amounts of metallurgical-grade chromite since the early part of the century. From 1968-1970 a cooperative study undertaken by the Geological Survey of Pakistan and the U. S. Geological Survey, under the auspices of the Government of Pakistan...
A list of references on lead isotope geochemistry, 1967-1969 (with an addendum to the list through 1966)
Bruce R. Doe
1971, Open-File Report 71-89
This bibliography was constructed to be as complete as possible for terminal papers containing new data relative to the geochemical applications of: Common lead U-The-Pb isotopic dating Pb-α Pb210, Pb212, Pb214 No effort was made for completeness of: Annual reports, Yearbooks, etc. Review papers although many are included. Abstracts and theses are omitted....
Cretaceous plutonic rocks of St. Lawrence Island, Alaska; a preliminary report
Bela Csejtey Jr., William Wallace Patton Jr., Thomas P. Miller
1971, Open-File Report 71-82
Reconnaissance mapping on St. Lawrence Island, Alaska has revealed seven epizonal granitic plutons of mid-Cretaceous age with a combined outcrop area of about 350 square miles. The plutonic rocks are dominantly quartz monzonite, but include minor amounts of granodiorite, monzonite, syenite, syenodiorite, and alaskite.The plutons are structurally and petrologically similar...
Selected fluvial monazite deposits in the southeastern United States
William C. Overstreet, A. M. White, P. K. Theobald, D. W. Caldwell
1971, Open-File Report 71-222
Farther southwest in Georgia, around Griffin and Zebullon, along streams tributary to the Flint River in the monazite belt the flood plains are generally small and discontinuous, and only about 1 percent of the sediment is gravel. The area between Griffin, Zebullon, and the Flint River is underlain by biotite...
Geology of the insular shelf south of St. Thomas and St. John, U.S. Virgin Islands
L. E. Garrison, Charles Ward Holmes, James V. Trumbull
1971, Open-File Report 71-117
A reconnaissance study has been made of the geology of the insular shelf south of St. Thomas and St. John, Virgin Islands. High-resolution seismic-reflection profiling reveals that a buried northeast-southwest striking bedrock ridge controls the shallow structure of the eastern portion of the shelf. This ridge is thought to be...