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Results for “Geophysics”

Search indexed USGS publications on groundwater, aquifers, geologic maps, mineral resources and earthquakes. Explore source records by subject and place.

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At least 883 records · Page 49Linked to original sources

USGS1978

Geophysical investigations in Fairfax County, Virginia

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Open-File Report↗

USGS1978

A computer-oriented system for logging, annotating, tabulating, and plotting marine geophysical and geological data collected by the Pacific-Arctic Branch of the Office of Marine Geology, U.S. Geological Survey

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Open-File Report↗

USGS1978

Geophysical and lithologic logs of holes drilled in the Wasatch Plateau and Emery coal fields, Johns Peak and Old Woman Plateau quadrangles, Sevier County, Utah

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Open-File Report↗

USGS1978

Geophysical logs of 20 holes drilled in 1977 in the Yampa coal field, Hamilton, Horse Gulch, and Pagoda quadrangles, Moffat County, Colorado

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Open-File Report↗

USGS1978

Geophysical and lithologic logs for 1977 coal drilling in McKenzie County, North Dakota

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Open-File Report↗

USGS1978

A table of photopeaks useful in nuclear geophysics

The table lists full-energy, single-escape, and double-escape photopeak energies corresponding to about 1800 x- and gamma rays derived from natural radioactivity, X-ray fluorescence, neutron reactions, and induced radioactivity. Photon lines have been selected on the basis of their importance in borehole logging by nuclear methods. The mode of production of each photopeak and the half lives of natural and artificial radionuclides are given, but intensity information is omitted.

Open-File Report↗

USGS1978

Geophysical and lithologic logs of 11 coal test holes drilled during 1977 in the Pats Bottom Quadrangle, Carbon County, Wyoming

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Open-File Report↗

USGS1978

Regional geologic and geophysical base maps of western North America and adjacent oceans

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Open-File Report↗

USGS1978

Lithologic and geophysical logs of 16 coal test holes drilled in the Rock Springs coal field, Sweetwater County, Wyoming

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Open-File Report↗

USGS1978

Lithologic and geophysical logs of 24 coal test holes drilled during 1977 in the Carbon Basin, Carbon County, Wyoming

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Open-File Report↗

USGS1978

Geologic and geophysical data from Osceola National Forest, Florida

Ten core holes were drilled as part of a hydrologic study of Osceola National Forest. This report describes the detailed lithology of the cores taken from test drilling, illustrates gamma-ray logs obtained from the test holes and from wells near the forest, and lists the microfauna obtained and identified from the cores. (Woodard-USGS)

Open-File Report↗

USGS1979