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![]() Puget Lowland fault zones and basins
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Puget Lowland fault zones and basinsGeologic, aeromagnetic, paleomagnetic, gravity, high-resolution topographic, and seismic surveys are underway to document the geologic structure of the Puget Lowland, with emphasis on the geometry of sedimentary basins and the location, length, and history of potentially active faults. The gravity image below outlines crustal blocks and block-bounding fault zones beneath Puget Sound (block uplifts are red, sediment-filled basins blue, and fault zones shown by white dots). ![]() Puget Lowland regional studies
Seattle Fault geology and fault mapping
Seattle Basin
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This site is maintained by the Pacific Northwest Urban Corridor Geologic Mapping Project of the Western Earth Surface Processes Team, Geologic Division, U.S. Geological Survey
The URL of this page is http://geomaps.wr.usgs.gov/pacnw/resfzpl.html
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