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Geophysics
Branch of geology studying the physical characteristics and phenomena of the earth and its atmosphere.
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Results 1 - 10 of 171 listed by similarity [list alphabetically]
PDF Introduction to potential fields: gravity [New Window]
Explanation of the Earth's gravitational field, emphasizing how USGS scientists measure gravity and portray these measurements on maps. Explains terminology of gravity anomaly maps and their relationship to the rock types and other geologic features.
PDF Introduction to potential fields: magnetics [New Window]
Explanation of the Earth's magnetic field and how USGS measures it. Defines magnetic anomaly, induced and remanent magnetism in rocks, and describes magnetic anomaly maps.
Geophysical data from the Spring and Snake Valleys area, Nevada and Utah [New Window]
Existing and new gravity station data and magnetometer measurements used to infer geologic structure of this area
PDF Geophysical framework of the southwestern Nevada volcanic field and hydrogeologic implications [New Window]
Report describing detailed interpretation of geophysical survey data to draw inferences about subsurface geologic features and likely consequences for the hydrogeologic system.
PDF Geophysical interpretations of the Libby Thrust Belt, Northwestern Montana [New Window]
Report using gravity anomaly data with seismic profile and magnetotelluric data to infer deep geologic structure.
Geophysical investigations of the Smoke Creek Desert and their geologic implications, northwest Nevada and northeast California [New Window]
Gravity and aeromagnetic data analysis described in a report, with a few physical property analyses
Geophysical studies of the Crump Geyser known geothermal resource area, Oregon, in 1975 [New Window]
Gravity map and data used to infer details of the geologic structure of the area. Surveys were conducted during or prior to 1975.
Geophysical surveys of Bear Lake, Utah-Idaho, September, 2002 [New Window]
Detailed bathymetry, lake-floor acoustic imaging, and sample characteristics to infer bottom sediment characteristics.
Geophysical terranes of the Great Basin and parts of surrounding provinces [New Window]
A set of geophysical maps with anomalies that are labeled and keyed to tables containing information on each anomaly and its source.
A preliminary investigation of the structure of southern Yucca Flat, Massachusetts Mountain, and CP basin, Nevada Test Site, Nevada, based on geophysical modeling [New Window]
Maps showing aeromagnetic survey results, locations of gravity station data, and discussions of processing within the report
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