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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.
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Miocene diatomaceous beds of the Pamunkey River area Hanover and King William counties, Virginia
No abstract available.
Authors
George W. Andrews
Foraminifers and calcareous nannofossils of Tertiary strata in Maryland and Virginia: A summary
No abstract available.
Authors
T. G. Gibson, Laurel M. Bybell
Miocene diatomaceous beds of the Calvert Formation at Popes Creek
No abstract available.
Authors
George W. Andrews
Implications of paleomagnetism for the tectonic history of the Eastern Klamath and related terranes in California and Oregon
No abstract available.
Authors
E. A. Mankinen, W. P. Irwin, C. S. Grommé
Sedimentary facies and composition of Jurassic volcaniclastic turbidites at Cerro El Calvario, Vizcaino Peninsula, Baja California Sur, Mexico
No abstract available.
Authors
Thomas E. Moore
Tectonostratigraphic terranes of Magdalena Island, Baja California Sur
No abstract available.
Authors
M. C. Blake, Angela S. Jayko, Thomas E. Moore
Correlation of Quaternary glacial sequences in the Western United States based on weathering rinds and related studies
No abstract available.
Authors
S.M. Colman, Kenneth L. Pierce
Ar40/Ar39 age spectrum dating of biotite from Middle Ordovician bentonites, eastern North America
No abstract available.
Authors
Michael J. Kunk, John F. Sutter
Evaluation of SPOT simulator data for geologic mapping in the Split Mountain region, Uintah County, Utah
No abstract available.
Authors
G. Bryan Bailey, John L. Dwyer
Significant unconformities and the hiatuses represented by them in the Paleogene of the Atlantic and Gulf Coastal Province
A biostratigraphic, chronostratigraphic, and magnetostratigraphic model has been calibrated to produce a new time scale for the Paleogene. The model gives the biostratigraphic position and duration represented by significant unconformities in three areas of the Atlantic and Gulf Coastal Province: 1) western and central Alabama; 2) South Carolina; and 3) central Virginia to southwestern Maryland. I
Authors
Joseph E. Hazel, Lucy E. Edwards, Laurel M. Bybell