Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2536
New uranium-series ages of the Waimanalo Limestone, Oahu, Hawaii: implications for sea level during the last interglacial period New uranium-series ages of the Waimanalo Limestone, Oahu, Hawaii: implications for sea level during the last interglacial period
The Waimanalo Formation (limestone) of Oahu has been correlated with the last interglacial period based on U-series dating of corals by T.-L. Ku and colleagues. The limestone consists of growth-position corals and overlying coral conglomerate. An apparent bimodal distribution of ages for the growth-position corals (mean age = 133 ka) and the overlying coral conglomerate (mean age = 119...
Authors
D.R. Muhs, Barney J. Szabo
Preliminary geologic map of the Niles 7.5-minute Quadrangle, Alameda County, California Preliminary geologic map of the Niles 7.5-minute Quadrangle, Alameda County, California
No abstract available.
Authors
R. W. Graymer, D. L. Jones, E. E. Brabb, E. J. Helley
The Loma Prieta, California, earthquake of October 17, 1989: Tectonic processes and models The Loma Prieta, California, earthquake of October 17, 1989: Tectonic processes and models
If there is a single theme that unifies the diverse papers in this chapter, it is the attempt to understand the role of the Loma Prieta earthquake in the context of the earthquake 'machine' in northern California: as the latest event in a long history of shocks in the San Francisco Bay region, as an incremental contributor to the regional deformation pattern, and as a possible harbinger...
Authors
Robert W. Simpson, John H. Shaw, Richard E. Bischke, J. Suppe, Gianluca Valensise, Susan Y. Schwartz, Daniel L. Orange, Robert S. Anderson, Paul A. Reasenberg, Paul Bodin, Roger G. Bilham, Kevin P. Furlong, David Verdonck
Grade and tonnage model of tungsten skarn deposits, Nevada Grade and tonnage model of tungsten skarn deposits, Nevada
No abstract available.
Authors
David A. John, James D. Bliss
Geology of south-central Alaska Geology of south-central Alaska
South-central Alaska is defined as the region bounded by the Kuskokwim Mountains to the northwest, the basins north of the Alaska Range to the north, the Canadian border to the east, and the Chugach Mountains to the south (Fig. 1). This region, hereafter called the study area, includes the Alaska Range, the Wrangell, Nutzotin, and Talkeetna mountains, the Copper River and the Susitna...
Authors
Warren J. Nokleberg, George Plafker, Frederic H. Wilson
Circum-North Pacific tectonostratigraphic terrane map Circum-North Pacific tectonostratigraphic terrane map
The companion tectonostratigraphic terrane and overlap assemblage of map the Circum-North Pacific presents a modern description of the major geologic and tectonic units of the region. The map illustrates both the onshore terranes and overlap volcanic assemblages of the region, and the major offshore geologic features. The map is the first collaborative compilation of the geology of the...
Authors
Warren J. Nokleberg, Leonid M. Parfenov, James W.H. Monger, Boris B. Baranov, Stanislav G. Byalobzhesky, Thomas K. Bundtzen, Tracey D. Feeney, Kazuya Fujita, Steven P. Gordey, Arthur Grantz, Alexander I. Khanchuk, Boris A. Natal’in, Lev M. Natapov, Ian O. Norton, William W. Patton, George Plafker, David W. Scholl, Sergei D. Sokolov, Gleb M. Sosunov, David B. Stone, Rowland W. Tabor, Nickolai V. Tsukanov, Tracy L. Vallier, Koji Wakita
Preliminary geologic map emphasizing bedrock formations in Contra Costa County, California: A digital database Preliminary geologic map emphasizing bedrock formations in Contra Costa County, California: A digital database
No abstract available.
Authors
R. W. Graymer, David Lawrence Jones, Earl E. Brabb
Geologic studies in Alaska by the U.S. Geological Survey, 1993 Geologic studies in Alaska by the U.S. Geological Survey, 1993
This collection of 19 papers continues the annual series of U.S. Geological Survey reports on geologic investigations in Alaska. Contributions include 14 Articles and 5 shorter Geologic Notes that report results from all corners of the State. USGS activities in Alaska cover a broad spectrum of earth science topics, including the environment, hazards, resources, and geologic framework...
Continent-ocean transition in Alaska: The tectonic assembly of eastern Denalia Continent-ocean transition in Alaska: The tectonic assembly of eastern Denalia
Alaska is the eastern, subaerial part of a large subcontinent of distinctive tectonic character that serves as an isthmus between nuclear North America, with its fringing belt of allochthonous terranes, and the accreted terranes and volcanic belts that constitute northeastern Russia. Physiographically, this subcontinent, which we name Denalia, is a bulge in the continental platform in...
Authors
Thomas E. Moore, Arthur Grantz, S. M. Roeske
Priorities for landslide mapping during the International Decade of Hazard Reduction Priorities for landslide mapping during the International Decade of Hazard Reduction
No abstract available.
Authors
E. E. Brabb
Proposal for worldwide landslide hazard maps Proposal for worldwide landslide hazard maps
No abstract available.
Authors
E. E. Brabb