File:USGS-PP1661d-fig22.png

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USGS-PP1661d-fig22.png ‎(340 × 411 pixels, file size: 500 KB, MIME type: image/png)

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Description
English: Geophysical anomalies and crustal faulting in the Puget Lowland, showing Everett, Tacoma, and Seattle Basins. Bouger gravity anomaly data combined with seismic reflection traveltime data to model rock density at 5 km depth. Blue is the softer, less dense sedimentary deposits, red is the harder, more dense mafic basalt of the Crescent Formation, other colors are intermediate. Black lines are shoreline of Puget Sound, Hood Canal, and the Strait of Juan de Fuca. White dashed lines are crustal faults; faults east of Tacoma Basin are conjectural.
Date Unknown date
Unknown date
; approx. 2005.
Source http://pubs.usgs.gov/pp/pp1661d/pp1661d.pdf
Author U,S. Geological Survey staff
Permission
(Reusing this file)
Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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From USGS Professional Paper 1661-D (2005), "Crustal Structure of the Cascadia Fore Arc of Washington", fig. 22, p. 34.

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current23:13, 24 April 2010Thumbnail for version as of 23:13, 24 April 2010340 × 411 (500 KB)J. Johnson{{Information |Description={{en|1=Geophysical anomalies and crustal faulting in the Puget Lowland, showing Everett, Tacoma, and Seattle Basins. Bouger gravity anomaly data combined with seismic reflection traveltime data to model rock density at 5 km de

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