Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2536
Ordovician and Silurian graptolite discoveries from the Neruokpuk Formation (sensu lato), northeastern and central Brooks Range, Alaska Ordovician and Silurian graptolite discoveries from the Neruokpuk Formation (sensu lato), northeastern and central Brooks Range, Alaska
No abstract available.
Authors
Thomas E. Moore, Michael Churkin
Tectonostratigraphic terranes of Magdalena Island, Baja California Sur Tectonostratigraphic terranes of Magdalena Island, Baja California Sur
No abstract available.
Authors
M.C. Blake, Angela S. Jayko, Thomas E. Moore
Innovative approaches to landslide hazard and risk mapping Innovative approaches to landslide hazard and risk mapping
No abstract available.
Authors
E. E. Brabb
Cenozoic plate motions and the volcano-tectonic evolution of western Oregon and Washington Cenozoic plate motions and the volcano-tectonic evolution of western Oregon and Washington
A refined northeast Pacific plate-motion model provides a framework for analysis of the Tertiary volcanic and tectonic history of western Oregon and Washington. We examine three possible models for the origin of the allochthonous Paleocene and Eocene oceanic basalt basement of the Coast Range: (1) accretion to the continent of hot spot generated linear seamount chains; (2) accretion of...
Authors
Ray E. Wells, David C. Engebretson, P. D. Snavely, R. S. Coe
Shimada Seamount: An example of recent mid-plate volcanism Shimada Seamount: An example of recent mid-plate volcanism
Shimada Seamount is an isolated volcanic feature located between the Clipperton and Clarion Fracture Zones ∼1,150 km west of the East Pacific Rise and ∼600 km west of the inactive spreading center represented by the Mathematician Seamounts. It rises ∼3,900 m above the surrounding sea floor to within 50 m of present-day sea level. The area of Shimada Seamount should be volcanically...
Authors
J. V. Gardner, Walter E. Dean, Richard J. Blakely
Addresses, topics of interest, and geographic distribution of professors working on landslides in the United States Addresses, topics of interest, and geographic distribution of professors working on landslides in the United States
No abstract available.
Authors
E. E. Brabb, Ann R. FitzSimmons
Wilderness mineral potential: Assessment of mineral-resource potential in U.S. Forest Service lands studied in 1964-1984: Volume 1 Wilderness mineral potential: Assessment of mineral-resource potential in U.S. Forest Service lands studied in 1964-1984: Volume 1
Under the provisions of the Wilderness Act (Public Law 88-577, September 3, 1964) and subsequent related legislation, the U.S. Geological Survey (USGS) and the U.S. Bureau of Mines (USBM) have been conducting mineral surveys of wilderness and primitive areas, and of other national forest lands being considered for wilderness designation. The Wilderness Act directs that the results of...
Preliminary geologic map of the Red Bluff 1:100,000 Quadrangle, California Preliminary geologic map of the Red Bluff 1:100,000 Quadrangle, California
No abstract available.
Authors
M.C. Blake, D. S. Harwood, E. J. Helley, W. P. Irwin, A. S. Jayko, D. L. Jones
Preliminary geologic map of the Colville Indian Reservation, Ferry and Okanogan Counties, Washington, with a table of potassium-argon ages Preliminary geologic map of the Colville Indian Reservation, Ferry and Okanogan Counties, Washington, with a table of potassium-argon ages
No abstract available.
Authors
Brian F. Atwater, Robert J. Fleck
Statistical relations among earthquake magnitude, surface rupture length, and surface fault displacement Statistical relations among earthquake magnitude, surface rupture length, and surface fault displacement
In order to refine correlations of surface-wave magnitude, fault rupture length at the ground surface, and fault displacement at the surface by including the uncertainties in these variables, the existing data were critically reviewed and a new data base was compiled. Earthquake magnitudes were redetermined as necessary to make them as consistent as possible with the Gutenberg methods...
Authors
M. G. Bonilla, R. K. Mark, J. J. Lienkaemper
Mineral resource assessments of large regions: Now and in the future Mineral resource assessments of large regions: Now and in the future
No abstract available.
Authors
Donald A. Singer