Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2524
Preliminary geologic map of the Loma-Prieta Quadrangle, Santa Cruz and Santa Clara counties, California Preliminary geologic map of the Loma-Prieta Quadrangle, Santa Cruz and Santa Clara counties, California
No abstract available.
Authors
T. W. Dibblee, Earl E. Brabb
Geological Survey research 1980 Geological Survey research 1980
A summary of recent significant scientific and economic results accompanied by a list of geologic, hydrologic, and cartographic investigations in progress.
Authors
Water Resources Division U.S. Geological Survey
Metamorphic infrastructure in the northern Ruby Mountains, Nevada Metamorphic infrastructure in the northern Ruby Mountains, Nevada
The metamorphic complex of the northern Ruby Mountains in northeastern Nevada exposes Paleozoic strata that are metamorphosed to sillimanite grade, migmatized, and recumbently folded. Nappes are variously overturned to the east, north, south, and west. The deeper part of this metamorphic infrastructure is a migmatitic zone pervaded by pegmatitic two-mica granite. A structurally higher...
Authors
Keith A. Howard
What can grade-tonnage relations really tell us? What can grade-tonnage relations really tell us?
No abstract available.
Authors
Donald A. Singer, John H. DeYoung
Some quantitative properties of mineral deposits Some quantitative properties of mineral deposits
No abstract available.
Authors
W. D. Menzie, Donald A. Singer
Nature and origin of metalliferous sediment in DOMES Site C, Pacific manganese nodule province Nature and origin of metalliferous sediment in DOMES Site C, Pacific manganese nodule province
No abstract available.
Authors
James L. Bischoff, David Z. Piper, Paula Quinterno
The Klamath Mountains and Coast Ranges in northern California and southern Oregon: Chapter II-B The Klamath Mountains and Coast Ranges in northern California and southern Oregon: Chapter II-B
No abstract available.
Authors
W. P. Irwin, P.E. Hotz
Tertiary paleontology and stratigraphy of the central Santa Cruz Mountains, California Coast Ranges Tertiary paleontology and stratigraphy of the central Santa Cruz Mountains, California Coast Ranges
No abstract available.
Authors
J. C. Clark, E. E. Brabb, W.O. Addicott
Marine magnetic anomalies Marine magnetic anomalies
Marine magnetic data have been available for many years from all of the world's oceans, and their contribution to marine geophysics and geology is profound. These data, for example, have allowed charting the age of the ocean floor, reconstruction of the geologic history of the major ocean basins, development of a Cenozoic and Mesozoic timescale of geomagnetic reversals, and speculation...
Authors
Richard J. Blakely, S.C. Cande
Annotated bibliography of landslides in the Circumpacific region exclusive of the Soviet Union and the United States Annotated bibliography of landslides in the Circumpacific region exclusive of the Soviet Union and the United States
No abstract available.
Authors
Fred A. Taylor, Earl E. Brabb
Base and precious metal occurrences along the San Andreas Fault, Point Delgada, California Base and precious metal occurrences along the San Andreas Fault, Point Delgada, California
Previously unrecognized veins containing lead, zinc, and copper sulfide minerals at Point Delgada, Calif., are associated with late Mesozoic(?) and Tertiary volcanic and sedimentary rocks of the Franciscan assemblage. Sulfide minerals include pyrite, sphalerite, galena, and minor chalcopyrite, and galena-rich samples contain substantial amounts of silver. These minerals occur in a quartz...
Authors
Robert J. McLaughlin, D. H. Sorg, H.N. Ohlin, Chris Heropoulos