| Geophysics in Joshua Tree National Park Geophysical Unit of Menlo Park, CA (GUMP) |
above: Picture of Pleasant Valley, looking north with Malapai Hill in the backgroud |
GRAVITY |
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above left: Craig McCabe with gravity meter backpack. above right: Helicopter gravity in Pinto Basin
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We use isostatic gravity data as a basis for modeling the shape of basins beneath Joshua Tree National Park to determine the location and geometry of faults within the area. See the following USGS publication for more details: |
MAGNETICS |
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We collect ground magnetic data to locate and characterize faults in an area where highly magnetic basaltic rocks are in contact with less magnetic granitic rocks and basin sediments.
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AMT (coming soon...) |
Links:
Geology of Joshua Tree National Park and Vicinity
3D Photographic Tour of Park Geology
Western Earth Surface Processes Team || GUMP || USGS Geophysics Hub |
This page is <http://geomaps.wr.usgs.gov/gump/people/jwatt/.html> |
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