Publications
Here you will find publications, reports and articles produced by geology, energy, and mineral scientists. For a comprehensive listing of all USGS publications, click the button below.
Filter Total Items: 1349
An interpretation of the 1996 aeromagnetic data for the Santa Cruz basin, Tumacacori Mountains, Santa Rita Mountains, and Patagonia Mountains, south-central Arizona An interpretation of the 1996 aeromagnetic data for the Santa Cruz basin, Tumacacori Mountains, Santa Rita Mountains, and Patagonia Mountains, south-central Arizona
High resolution aeromagnetic survey data flown at 250 m above the terrain and 250 m line spacing over the Santa Cruz Valley and the surrounding Tumacacori, Patagonia, and Santa Rita Mountains has been interpreted by correlation of the magnetic anomaly field and various derivative maps with geologic maps. Measurements of in-situ magnetic properties of several of the map units determined...
Authors
Mark E. Gettings
Inventory of Neoproterozoic and Paleozoic strata in Sonora, Mexico Inventory of Neoproterozoic and Paleozoic strata in Sonora, Mexico
This compilation is an inventory of all known outcrops of Neoproterozoic and Paleozoic strata in Sonora, Mexico. We have not attempted an interpretation of the regional stratigraphic or structural setting of the strata. Brief summaries of the stratigraphic setting of the Sonora rocks are given in Poole and Hayes (1971), Rangin (1978), Stewart and others (1984, 1990), and Poole and Madrid...
Authors
John H. Stewart, Forrest G. Poole
Alaska resource data file: Ophir quadrangle Alaska resource data file: Ophir quadrangle
No abstract available.
Authors
S.S. Dashevsky
Alaska resource data file: Nulato quadrangle Alaska resource data file: Nulato quadrangle
No abstract available.
Authors
S.S. Dashevsky
Preliminary United States-Mexico border watershed analysis, twin cities area of Nogales, Arizona and Nogales, Sonora Preliminary United States-Mexico border watershed analysis, twin cities area of Nogales, Arizona and Nogales, Sonora
The United States - Mexico border area faces the challenge of integrating aspects of its binational physical boundaries to form a unified or, at least, compatible natural resource management plan. Specified geospatial components such as stream drainages, mineral occurrences, vegetation, wildlife, and land-use can be analyzed in terms of their overlapping impacts upon one another...
Authors
Laura Margaret Brady, Floyd Gray, Mario Castaneda, Mark Bultman, Karen Sue Bolm
Alaska resource data file: Russian Mission quadrangle Alaska resource data file: Russian Mission quadrangle
No abstract available.
Authors
T. L. Hudson, M.A. Millholland
Spatial digital database for the geology of the San Pedro River Basin in Cochise, Gila, Graham, Pima, and Pinal Counties, Arizona Spatial digital database for the geology of the San Pedro River Basin in Cochise, Gila, Graham, Pima, and Pinal Counties, Arizona
This spatial digital database for the geology of the San Pedro River Basin in southeastern Arizona was compiled from three maps by Dickinson (1993, 1998, 2000). Mylar originals of the map sheets were scanned, and the resultant images were rectified to a mathematically-generated set of latitude and longitude registration points. Geologic linework was digitized from the rectified images on...
Authors
Karen S. Bolm
Trace-element deposition in the Cariaco Basin, Venezuela Shelf, under sulfate-reducing conditions: A history of the local hydrography and global climate, 20 ka to the present Trace-element deposition in the Cariaco Basin, Venezuela Shelf, under sulfate-reducing conditions: A history of the local hydrography and global climate, 20 ka to the present
A sediment core from the Cariaco Basin on the Venezuelan continental shelf, which recovered sediment that has been dated back to 20 ka (thousand years ago), was examined for its major-element-oxide and trace-element composition. Cadmium (Cd), chromium (Cr), copper (Cu), molybdenum (Mo), nickel (Ni), vanadium (V), and zinc (Zn) can be partitioned between a siliciclastic, terrigenous...
Authors
David Z. Piper, Walter E. Dean
Alaska resource data file: Icy Bay quadrangle Alaska resource data file: Icy Bay quadrangle
No abstract available.
Authors
Travis L. Hudson
Alaska resource data file: Middleton Island quadrangle Alaska resource data file: Middleton Island quadrangle
No abstract available.
Authors
Travis L. Hudson
Alaska resource data file: Nome quadrangle Alaska resource data file: Nome quadrangle
No abstract available.
Authors
Charles Caldwell Hawley, Travis L. Hudson
Age and tectonic significance of volcanic rocks in the northern Los Angeles Basin, California Age and tectonic significance of volcanic rocks in the northern Los Angeles Basin, California
Volcanic rocks, mostly basalts and some andesites, are interbedded with middle Miocene strata and are overlain by younger rocks throughout the greater part of the Los Angeles Basin, California. Roughly correlative flows, previously dated radiometrically (or paleontologically) at about 16.4 to 10.7 Ma, crop out in five separate regions around the basin perimeter. Los Angeles Basin...
Authors
Thane H. McCulloh, Robert J. Fleck, Rodger E. Denison, Larry A. Beyer, Richard G. Stanley