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Year Published: 1972

Geological Survey research 1972, Chapter B

Geological Survey research 1972, Chapter B; 1972; PP; 800-B; USGS NUMBERED SERIES; Geological survey research, 1972; Geological Survey (U.S.)

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Year Published: 1972

Geological Survey research 1972, Chapter C

This collection of 37 short papers is the second published chapter of "Geological Survey Research 1972." The papers report on scientific and economic results of current work by members of the Conservation, Geologic, and Water Resources Divisions of the U.S. Geological Survey.Chapter A, to be published later in the year, will present a summary of...

Geological Survey research 1972, Chapter C; 1972; PP; 800-C; USGS NUMBERED SERIES; Geological survey research, 1972; Geological Survey (U.S.)

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Year Published: 1972

Landslide susceptibility in San Mateo County, California

Information on areas susceptible to failure by landsliding is available in many general geologic maps and reports.  However, it is commonly presented in complex, technical language, together with data not connected with slope stability.  This derivative map is intended to convey such information in nontechnical form so that it will be...

Brabb, Earl E.; Pampeyan, Earl H.; Bonilla, Manuel G.
Landslide susceptibility in San Mateo County, California; 1972; MF; 360; Brabb, E. E.; Pampeyan, E. H.; Bonilla, M. G.

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Year Published: 1972

Maps showing distribution and cost by counties of structurally damaging landslides in the San Francisco Bay region, California, winter of 1968-69

Taylor, F.A.; Brabb, E.E.
Maps showing distribution and cost by counties of structurally damaging landslides in the San Francisco Bay region, California, winter of 1968-69; 1972; MF; 327; Taylor, F. A.; Brabb, E. E.

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Year Published: 1972

Preliminary geologic map of San Mateo County, California

Brabb, E. E.; Pampeyan, E.H.
Preliminary geologic map of San Mateo County, California; 1972; MF; 328; compiled by Brabb, E. E.; Pampeyan, E. H.

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Year Published: 1972

Preliminary map showing global distribution of alpine-type ultramafic rocks and blueschists

No abstract available.

Irwin, William P.; Coleman, Robert G.
Preliminary map showing global distribution of alpine-type ultramafic rocks and blueschists; 1972; MF; 340; Irwin, W. P.; Coleman, R. G.

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Year Published: 1972

Geologic setting of the Apollo 15 samples

The samples and photographs returned from the Apollo 15 site show that Hadley Delta is largely underlain by breccias whose clasts are mainly fragments of coarse-grained feldspathic rocks and nonmare-type basalt. Conspicuous sets of lineaments, visible in surface and orbital photographs of Mount Hadley and Hadley Delta, may represent systematic...

Swann, G.A.; Bailey, N.G.; Batson, R.M.; Freeman, V.L.; Hait, M.H.; Holt, H.E.; Larson, K.B.; Reed, V.S.; Schaber, G.G.; Sutton, R.L.; Wolfe, E.W.; Howard, Keith A.; Wilshire, H.G.; Head, J.W.; Irwin, J.B.; Scott, D.R.; Muehlberger, W.R.; Silver, L.T.; Rennilson, J.J.

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Year Published: 1972

Paleomagnetic correlations and Potassium-Argon dating of Middle Tertiary ash-flow sheets in the eastern Great Basin, Nevada and Utah

Directions of natural remanent magnetization are used to identify and correlate individual cooling units in the middle Tertiary ash-flow province in central and eastern Nevada and western Utah. Potassium-argon dating indicates that the minimum time between eruptions of individual but genetically related ash-flow cooling units is on the order of 0....

Gromme, C.S.; McKee, E.H.; Blake, M. Clark

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Year Published: 1972

Structure of Sierra Madera, Texas, as a guide to central peaks of lunar craters

Like hundreds of other lunar craters of probable impact origin, Copernicus contains central peaks presumed to expose rocks uplifted from beneath the crater floor. A possible analog of these peaks on Earth is the central uplift of the Sierra Madera cryptoexplosion structure, a probable impact scar (astrobleme) in stratified Permian and Cretaceous...

Howard, Keith A.; Offield, Terry W.; Wilshire, H.G.

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Year Published: 1972

Paleomagnetism and potassium-argon ages of the Sonoma Volcanics, California

Paleomagnetic data and potassium-argon ages indicate that the Sonoma Volcanics was erupted during the Pliocene Gilbert reversed and Gauss normal polarity epochs. The Gilbert reversed epoch is represented in the Howell Mountains east of Napa and east of St. Helena, in the mountains immediately east of the Valley of the Moon, and on the hill just...

Mankinen, Edward A.