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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 6158
Sedimentology of the Upper Devonian to Lower Mississippian(?) Kanayut Conglomerate in the vicinity of the Trans-Alaska Pipeline, Brooks Range, Alaska Sedimentology of the Upper Devonian to Lower Mississippian(?) Kanayut Conglomerate in the vicinity of the Trans-Alaska Pipeline, Brooks Range, Alaska
No abstract available.
Authors
Thomas E. Moore, T. H. Nilsen, W. P. Brosge
Terranes of the northern coast ranges Terranes of the northern coast ranges
No abstract available.
The extent of landsliding in northern New Mexico and similar semi-arid and arid regions The extent of landsliding in northern New Mexico and similar semi-arid and arid regions
No abstract available.
Authors
E. E. Brabb, Fausto Guzzetti, Robert K. Mark, R. W. Simpson
Timing and mechanisms for the deposition of the glaciomarine mud in and around the Gulf of Maine: A discussion of alternative models Timing and mechanisms for the deposition of the glaciomarine mud in and around the Gulf of Maine: A discussion of alternative models
Glaciomarine mud in the Gulf of Maine, characterized by rhythmic seismic layers that mimic the morphology of the underlying surface, is composed of subequal amounts of silt and clay, variable amounts of sand, and sparse gravel-sized clasts. The mud is Wisconsinan in age and was deposited during the retreat of the last ice sheet. A beginning date of 38 ka, proposed by King and Fader (1986...
Authors
Robert N. Oldale
IGC Field Trip T218: Geomorphology, neotectonics, and process studies in the Rappahannock River basin, Virginia IGC Field Trip T218: Geomorphology, neotectonics, and process studies in the Rappahannock River basin, Virginia
No abstract available.
Authors
Milan J. Pavich, Robert B. Jacobson, Wayne L. Newell
Mount Mazama and Crater Lake caldera, Oregon Mount Mazama and Crater Lake caldera, Oregon
No abstract available.
Authors
Charles R. Bacon
IGC field trip T312: South cascades arc volcanism, California and southern Oregon IGC field trip T312: South cascades arc volcanism, California and southern Oregon
No abstract available.
Authors
L.J. Patrick Muffler, Charles R. Bacon, Robert L. Christiansen, Michael A. Clynne, Julie M. Donnelly-Nolan, Cheryl Miller, David R. Sherrod, J.C. Smith
Geochemistry and occurrence of selenium: An overview Geochemistry and occurrence of selenium: An overview
Selenium (Se) is both beneficial and toxic to animals, plants, and humans. Consequently, it is imperative to know its concentration in the environment and to understand the processes controlling its distribution. Determinations of Se concentrations in a variety of materials indicate that Se is widely distributed throughout the environment. The processes responsible for its distribution...
Authors
James M. McNeal, Laurie S. Balistrieri
Stratabound Co-Cu deposits and mafic volcaniclastic rocks in the Blackbird mining district, Lemhi County, Idaho Stratabound Co-Cu deposits and mafic volcaniclastic rocks in the Blackbird mining district, Lemhi County, Idaho
No abstract available.
Authors
J. Thomas Nash, G.A. Hahn
The Macon Complex; An ancient accretionary complex in the southern Appalachians The Macon Complex; An ancient accretionary complex in the southern Appalachians
The Macon Complex, which extends from eastern Alabama to northern North Carolina, is a late Precambrian–Middle Cambrian accretionary complex comparable in size to the Franciscan Complex of California and Oregon. Much of the complex is tectonic, sedimentary, and metamorphic chaos, properly termed mélange, where well-rounded to angular fragments, blocks, and slabs of contrasting...
Authors
Michael W. Higgins, Ralph Crawford, R. L. Atkins, Thomas J. Crawford