Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2354
Rock movement and mass wastage in the Grand Canyon
No abstract available.
Authors
Richard Hereford, P. W. Huntoon
Geosciences
No abstract available.
Authors
Roger D. Borcherdt, N. C. Donovan, D. Eberhart-Phillips, A. Michael, Paul A. Reasenberg, L. Dietz, W. Ellsworth, Daniel J. Ponti, Ray E. Wells, R. A. Haugerud, M. M. Clark, N. T. Hall
Physical and chemical properties of the phosphate deposit on Nauru, western equatorial Pacific Ocean
No abstract available.
Authors
David Z. Piper, B.J. Loebner, P. Aharon
Chapter 14: Middle Cretaceous silicic metavolcanic rocks in the Kings Canyon area, central Sierra Nevada, California
Metamorphosed silicic volcanic and hypabyssal rocks of middle Cretaceous (110 to 100 Ma) age occur in two roof pendants in the Kings Canyon area of the central Sierra Nevada. The metavolcanic remnants are similar in age to or are only slightly older than the voluminous enclosing batholithic rocks. Thus, high to surface levels of the batholith are implied for this region. This is interesting consid
Authors
J.B. Saleeby, R. W. Kistler, Samuel Longiaru, James G. Moore, Warren J. Nokleberg
Saline minerals in the Lewis Cliff ice tongue, Buckley Island Quadrangle, Antarctica
No abstract available.
Authors
J. J. Fitzpatrick, D.R. Muhs, A.J.T. Jull
Multichannel seismic-reflection data collected in 1982 in the eastern Chukchi Sea
No abstract available.
Authors
Arthur Grantz, R. W. Sliter, D. M. Mann, S. D. May
Program to prepare standard figures for grade-tonnage models on a Macintosh
Grade-tonnage models are frequency distributions of deposit tonnage and grades of mineral deposits of a specific type. The program described here allows users to prepare standard figures of grade and tonnage distributions and display the deposit name associated with any of the data points. Titles and scales appropriate for most deposit types are plotted automatically for tonnage, Cu, Ni, Sn, Nb, W
Authors
Donald A. Singer, James D. Bliss
Evolution of the Tertiary La Honda basin, central California
Tertiary strata of the La Honda basin are exposed in the Santa Cruz Mountains along the central California coast south of San Francisco. The basin fill has a composite thickness of more than 14,500 m and consists of sedimentary and volcanic rocks that in places rest on granitic basement rocks of the Salinia terrane. Paleogene strata are mainly turbidite sandstone and hemipelagic mudstone that accu
Authors
Richard G. Stanley
Review of paleomagnetic data from the Klamath Mountains, Blue Mountains, and Sierra Nevada; Implications for paleogeographic reconstructions
Paleomagnetic studies of the Klamath Mountains, Blue Mountains, Sierra Nevada, and northwestern Nevada pertain mostly to Jurassic and Cretaceous rocks, but some data also are available for Permian and Triassic rocks of the region. Large vertical-axis rotations are indicated for rocks in many of the terranes, but few studies show statistically significant latitudinal displacements. The most complet
Authors
Edward A. Mankinen, William P. Irwin
Maps showing elevation of bedrock and implications for design of engineered structures to withstand earthquake shaking in San Mateo County, California
No abstract available.
Authors
W.H. Hensolt, E. E. Brabb
Preliminary maps showing landslide deposits and related features in New Mexico
No abstract available.
Authors
Mauro Cardinali, Fausto Guzzetti, Earl E. Brabb