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Publications

Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center

Filter Total Items: 1028

A refined assessment of the paleoceanographic and tectonic influences on the deposition of the Monterey Formation in California A refined assessment of the paleoceanographic and tectonic influences on the deposition of the Monterey Formation in California

Application of updated diatom biochronology to the Monterey Formation and related biosiliceous rocks reveals the imprint of both global paleoclimatic/ paleoceanographic and regional tectonic events. A rise in global sea level combined with regional tectonic deepening associated with the development of the transform California margin resulted in the abrupt onset of deposition of fine...
Authors
John Barron

Marine geology and tectonics--What is under all that water? Marine geology and tectonics--What is under all that water?

This chapter is divided into two main sections. The first section is on Marine Geology Seascapes (what earth scientists call bathymetry). The second section is on Tectonics of Marine Areas.
Authors
David Scholl, Warren Nokleberg

Regional geology and tectonics Regional geology and tectonics

This chapter describes the regional geology and tectonic origins of the major geologic units for the Northern Cordillera. The goals of the chapter are to: (1) provide a summary and regional overview of this vast region that contains a complicated geologic history; and (2) describe the major geologic units and tectonic events that cover a broad geologic time span from the Proterozoic to...
Authors
Warren Nokleberg

Geologic road guides for the Southern Canadian Cordillera--Viewing geology and tectonics along major highways Geologic road guides for the Southern Canadian Cordillera--Viewing geology and tectonics along major highways

The Geologic Road Guides for the Southern Canadian Cordillera provide a layperson’s understanding of the major geologic units and their tectonic origins along portions of two sets of major highways corridors, herein termed the Southern Road Guide and the Northern Road Guide. The two routes are shown on the Southern Canadian Cordillera Geologic Map. The first page of each Road Guide is...
Authors
Warren Nokleberg, Raymond Price

Spatial database for a global assessment of undiscovered copper resources: Chapter Z in Global mineral resource assessment Spatial database for a global assessment of undiscovered copper resources: Chapter Z in Global mineral resource assessment

As part of the first-ever U.S. Geological Survey global assessment of undiscovered copper resources, data common to several regional spatial databases published by the U.S. Geological Survey, including one report from Finland and one from Greenland, were standardized, updated, and compiled into a global copper resource database. This integrated collection of spatial databases provides...
Authors
Connie L. Dicken, Pamela Dunlap, Heather Parks, Jane Hammarstrom, Michael Zientek

Porphyry copper assessment of the Tethys region of western and southern Asia: Chapter V in Global mineral resource assessment Porphyry copper assessment of the Tethys region of western and southern Asia: Chapter V in Global mineral resource assessment

A probabilistic mineral resource assessment of undiscovered resources in porphyry copper deposits in the Tethys region of western and southern Asia was carried out as part of a global mineral resource assessment led by the U.S. Geological Survey (USGS). The purpose of the study was to delineate geographic areas as permissive tracts for the occurrence of porphyry copper deposits at a...
Authors
Lukas Zürcher, Arthur Bookstrom, Jane Hammarstrom, John C. Mars, Stephen Ludington, Michael Zientek, Pamela Dunlap, John C. Wallis, Lawrence Drew, David M. Sutphin, Byron Berger, Richard Herrington, Mario Billa, Ilkay Kuscu, Charles Moon, Jeremy Richards

Analysis of a spatial point pattern: Examining the damage to pavement and pipes in Santa Clara Valley resulting from the Loma Prieta earthquake Analysis of a spatial point pattern: Examining the damage to pavement and pipes in Santa Clara Valley resulting from the Loma Prieta earthquake

This report describes some simple spatial statistical methods to explore the relationships of scattered points to geologic or other features, represented by points, lines, or areas. It also describes statistical methods to search for linear trends and clustered patterns within the scattered point data. Scattered points are often contained within irregularly shaped study areas...
Authors
G. Phelps

Dissolved and labile concentrations of Cd, Cu, Pb, and Zn in the South Fork Coeur d'Alene River, Idaho: Comparisons among chemical equilibrium models and implications for biotic ligand models Dissolved and labile concentrations of Cd, Cu, Pb, and Zn in the South Fork Coeur d'Alene River, Idaho: Comparisons among chemical equilibrium models and implications for biotic ligand models

In order to evaluate thermodynamic speciation calculations inherent in biotic ligand models, the speciation of dissolved Cd, Cu, Pb, and Zn in aquatic systems influenced by historical mining activities is examined using equilibrium computer models and the diffusive gradients in thin films (DGT) technique. Several metal/organic-matter complexation models, including WHAM VI, NICA-Donnan...
Authors
Laurie Balistrieri, R.G. Blank
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