Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2494
Geologic map and structure sections of the Los Gatos 7-1/2' quadrangle, Santa Clara and Santa Cruz Counties, California Geologic map and structure sections of the Los Gatos 7-1/2' quadrangle, Santa Clara and Santa Cruz Counties, California
No abstract available.
Authors
R. J. McLaughlin, J. C. Clark, E. E. Brabb, E. J. Helley
Landform classification of New Mexico by computer Landform classification of New Mexico by computer
No abstract available.
Authors
Richard Dikau, Earl E. Brabb, Robert M. Mark
Metamorphic facies map of southeastern Alaska – Distribution, facies, and ages of regionally metamorphosed rocks Metamorphic facies map of southeastern Alaska – Distribution, facies, and ages of regionally metamorphosed rocks
No abstract available.
Authors
Cynthia Dusel-Bacon, D. A. Brew, S. L. Douglass
Stratigraphy of the Lower and Middle(?) Triassic Union Wash Formation, east-central California Stratigraphy of the Lower and Middle(?) Triassic Union Wash Formation, east-central California
No abstract available.
Authors
Paul Stone, Calvin H. Stevens, M.J. Orchard
ALACARTE installation and system manual ALACARTE installation and system manual
ALACARTE offers a convenient way to compile geologic maps in the computer as spatial databases that can be used to prepare both cartographic images and analytic derivatives. It is a menu-controlled shell, organized in geologic terms, that provides on-screen control of the program ARC/INFO, a commercial geographic information system (GIS). Input can be from imported scans, digitizer...
Authors
Todd T. Fitzgibbon
ALACARTE user manual ALACARTE user manual
ALACARTE offers a convenient way to compile geologic maps in the computer as spatial databases that can be used to prepare both cartographic images and analytic derivatives. It is a menu-controlled shell, organized in geologic terms, that provides on-screen control of the program ARC/INFO, a commercial geographic information system (GIS). Input can be from imported scans, digitizer...
Authors
Carl M. Wentworth, Todd T. Fitzgibbon
Off-fault ground ruptures in the Santa Cruz Mountains, California: Ridge-top spreading versus tectonic extension during the 1989 Loma Prieta earthquake Off-fault ground ruptures in the Santa Cruz Mountains, California: Ridge-top spreading versus tectonic extension during the 1989 Loma Prieta earthquake
The Ms 7.1 Loma Prieta earthquake of 18 October 1989 produced abundant ground ruptures in an 8 by 4 km area along Summit Road and Skyland Ridge in the Santa Cruz Mountains. Predominantly extensional fissures formed a left-stepping, crudely en echelon pattern along ridges of the hanging-wall block southwest of the San Andreas fault, about 12 km northwest of the epicenter. The fissures are
Authors
Daniel J. Ponti, Ray E. Wells
Neogene rotations and quasicontinuous deformation of the Pacific Northwest continental margin Neogene rotations and quasicontinuous deformation of the Pacific Northwest continental margin
Paleomagnetically determined rotations about vertical axes of 15 to 12 Ma flows of the Miocene Columbia River Basalt Group of Oregon and Washington decrease smoothly with distance from the plate margin, consistent with a simple physical model for continental deformation that assumes the lithosphere behaves as a thin layer of fluid. The average rate of northward translation of the...
Authors
Philip England, Ray E. Wells
Amino acid dating of fossil mollusks Amino acid dating of fossil mollusks
No abstract available.
Authors
D.R. Muhs
Introduction to Special section on the California-Arizona crustal transect: Part I Introduction to Special section on the California-Arizona crustal transect: Part I
No abstract available.
Authors
Keith A. Howard, R.W. Simpson, G. B. Haxel
K-Ar and fission-track ages (dates) of volcanic, intrusive, altered, and metamorphic rocks in the Mohave Mountains area, west-central Arizona K-Ar and fission-track ages (dates) of volcanic, intrusive, altered, and metamorphic rocks in the Mohave Mountains area, west-central Arizona
No abstract available.
Authors
J. K. Nakata, M.A. Pernokas, Keith A. Howard, J.R. Shannon
Visibility of fault strands in exploratory trenches and timing of rupture events Visibility of fault strands in exploratory trenches and timing of rupture events
No abstract available.
Authors
M. G. Bonilla, James J. Lienkaemper