The Paleozoic and Mesozoic rocks; a discussion to accompany the geologic map of the United States
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Professional Paper↗
Geology topics
Helen Marie Beikman
Publications and source records attributed to Helen Marie Beikman.
Geology of the Zwedru Quadrangle, Liberia
As part of a program undertaken cooperatively by the Liberian Geological Survey (LGS) and the U. S. Geological Survey (USGS), under the sponsorship of the Government of Liberia and the Agency for International Development, U. S. Department of State, Liberia was mapped by geologic and geophysical methods during the period 1965 to 1972.
Zwedru Quadrangle↗
The Lincoln Creek Formation, Grays Harbor basin, southwestern Washington
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Bulletin↗
Geology of the Powder River Basin, Wyoming and Montana, with reference to subsurface disposal of radioactive wastes
No abstract available.
Montana;Wyoming↗