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Graphs and tables used to describe electrical measurements of samples of unconsolidated materials, USGS Petrophysical Laboratory, Denver
David L. Campbell, Robert Horton
2000, Open-File Report 2000-377
The U.S. Geological Survey Petrophysical Laboratory (PetLab) in Denver CO measures electrical properties of samples of earth materials collected by U.S. Geological Survey personnel. This report describes the standard graphs and tables produced by PetLab to present geoelectrical measurements made on samples of unconsolidated materials....
Flood tracking chart for the Upper San Jacinto River Basin near Houston, Texas
Dana L. Barbie
2000, Open-File Report 2000-387
The “Flood Tracking Chart for the Upper San Jacinto River Basin near Houston, Texas” can be used to track river stage and to assess flood-crest information during substantial storms. Water-surface elevation during a flood will provide emergency-response personnel, residents, and the traveling general public essential information to make informed decisions...
Droughts in Georgia
Nancy L. Barber, Timothy C. Stamey
2000, Open-File Report 2000-380
Droughts do not have the immediate effects of floods, but sustained droughts can cause economic stress throughout the State. The word 'drought' has various meanings, depending on a person's perspective. To a farmer, a drought is a period of moisture deficiency that affects the crops under cultivation - even two...
Autobiography of Philip B. King
Philip Burke King
2000, Open-File Report 2000-443
Philip Burke King's interests and methods of scientific inquiry were those of a field geologist who obtains his data from the rocks exposed at the Earth's surface and from them derives inferences as to the history and behavior of the Earth. He was especially interested in the sedimentary rocks, and...
Archive of water gun subbottom data collected during USGS cruise SEAX 96004, New York Bight, 1 May - 9 June 1996
Jenna C. Hill, William C. Schwab, David S. Foster
2000, Open-File Report 2000-396
Beginning in 1995, the USGS, in cooperation with the U.S Army Corps of Engineers (USACE), New York District, began a program to generate reconnaissance maps of the sea floor offshore of the New York-New Jersey metropolitan area, one of the most populated coastal regions of the United States. The goal...
Aeromagnetic Survey of the Amargosa Desert, Nevada and California: A Tool for Understanding Near-Surface Geology and Hydrology
Richard J. Blakely, Victoria E. Langenheim, David A. Ponce, Gary L. Dixon
2000, Open-File Report 2000-188
A high-resolution aeromagnetic survey of the Amargosa Desert and surrounding areas provides insights into the buried geology of this structurally complex region. The survey covers an area of approximately 7,700 km2 (2,970 mi2), extending from Beatty, Nevada, to south of Shoshone, California, and includes parts of the Nevada Test Site...
Physical characteristics of dungeness crab and halibut habitats in Whidbey Passage, Alaska
Guy R. Cochrane, Paul R. Carlson, Michael E. Boyle, Gregory L. Gabel, Philip N. Hooge
2000, Open-File Report 2000-32
In Glacier Bay National Park, Alaska there are ongoing studies of Dungeness Crab (Cancer magister) and Pacific Halibut (Hippoglosus stenolepis). Scientists of the United States Geological Survey (USGS) are attempting to ascertain life history, distribution, and abundance, and to determine the effects of commercial fishing in the park (Carlson et...
Towards policy relevant environmental modeling: contextual validity and pragmatic models
Scott B. Miles
2000, Open-File Report 2000-401
"What makes for a good model?" In various forms, this question is a question that, undoubtedly, many people, businesses, and institutions ponder with regards to their particular domain of modeling. One particular domain that is wrestling with this question is the multidisciplinary field of environmental modeling. Examples of environmental models...
MORPH-II, a software package for the analysis of scanning-electron-micrograph images for the assessment of the fractal dimension of exposed stone surfaces
Victor G. Mossotti, A. Raouf Eldeeb
2000, Open-File Report 2000-13
Turcotte, 1997, and Barton and La Pointe, 1995, have identified many potential uses for the fractal dimension in physicochemical models of surface properties. The image-analysis program described in this report is an extension of the program set MORPH-I (Mossotti and others, 1998), which provided the fractal analysis of electron-microscope images...
Preliminary report on geophysics of the Verde River headwaters region, Arizona
Victoria E. Langenheim, J. S. Duval, Laurie Wirt, Ed DeWitt
2000, Open-File Report 2000-403
This report summarizes the acquisition, data processing, and preliminary interpretation of a high-resolution aeromagnetic and radiometric survey near the confluence of the Big and Little Chino basins in the headwaters of the Verde River, Arizona. The goal of the aeromagnetic study is to improve understanding of the geologic framework as...