U.S. Geological Survey: Science for a Changing World - USGS visiaul identifier and link to main Web site at http://www.usgs.gov/

Photograph of three mafic dikes (darker colored rocks) of probable Mesozoic age cutting low-silica charnockite at Stop 18. For a more detailed explanation, contact Richard Tollo at rtollo@gwu.edu
Figure 14. Photograph of three mafic dikes (darker colored rocks) of probable Mesozoic age cutting low-silica charnockite at Stop 18. Middle dike is about 2 m (80 in) wide.
U.S. Department of the Interior, U.S. Geological Survey
URL: https:// pubsdata.usgs.gov /pubs/circ/2004/1264/html/trip2/fig14.html
For more information, contact Richard Tollo
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