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Gravitational field (earth)
Region or space around earth's mass which exerts a force that mutually attracts other masses in proportion to the product of the two masses and the distance between them.
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Gravity anomaly maps (5 items)
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Results 1 - 12 of 12 listed by similarity [list alphabetically]
PDF Introduction to potential fields: Gravity [More info]
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.
Magnetic and gravity anomaly maps of West Virginia [More info]
Colored map in two parts and text in PDF files requiring Adobe Acrobat Reader 3.0 to view.
New England states aeromagnetic and gravity maps and data [More info]
Aeromagnetic surveys of New England, merged to form seamless grids across the state. Gravity anomaly data are provided as well. Data provided in a variety of formats.
Earth tides and volcano monitoring [More info]
Article in the May 28, 1998 issue of Volcano Watch describing of correlation of earth tides to volcanic eruptions and value in monitoring underground magma movement with deformation measurement instruments including tiltmeters and strainmeters.
Teacher's guide to the San Francisco Bay area geophysics maps (U.S. Geological Survey GP-1006 and GP-1007) [More info]
This publication (Open-File Report 95-479) is a teacher's guide to two U.S. Geological Survey maps that show gravity and magnetic data in contour form superimposed on a LANDSAT satellite image of the San Francisco Bay area.
Washington aeromagnetic maps and data [More info]
Colored geomagnetic and gravity maps and related data and graphical plots for the state of Washington.
Cascadia subduction zone: two contrasting models of lithospheric structure [More info]
Summary of an investigation of the Cascadia subduction zone with detailed density-modeling experiments of the crust and mantle along two transects across Vancouver Island and the Canadian margin and the other on the margin of central Oregon.
Coastal and Marine Geology (CMG) InfoBank [More info]
Access to InfoBank, an online data catalog, to browse or retrieve coastal and marine geology program information, images, and data on gravity, bathymetry, seismic activity, magnetics, samples, facilities, cruises and equipment.
Geophysical products [More info]
Links to products of magnetic, gravity, magnetotelluric, and multi-discipline reports and surveys of regions in the U.S. and Antarctica plus geophysical software tools. Some products are in PDF format.
Hydrogeologic framework of Antelope Valley and Bedell Flat, Washoe County, west-central Nevada [More info]
Description of the hydrogeologic framework of Antelope Valley and Bedell Flat in west-central Nevada north of Reno-Sparks area. Gravimetric and seismic-refraction methods were used in the study. Report available in PDF format or HTML format.
Isostasy [More info]
Explanation of the concept of isostasy as part of the Geophysical studies of the San Francisco Bay area.
Western Region geophysical investigations by the Geophysical Unit of Menlo Park, Calif. (GUMP) [More info]
Overview of the research group Geophysical Unit of Menlo Park (GUMP) with links to studies, models, and maps on gravity and geomagnetism in Nevada, California, Oregon, Washington and the U.S.
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