Photomicrographs in cross polarized light from (A) a metagabbro in the Laurel Formation, (B) the eastern Marburg Formation, and (C) the Blockhouse Point domain of the Mather Gorge Formation. See text for discussion.
U.S. Department of the Interior
U.S. Geological Survey
URL: https:// pubs.usgs.gov /circ/2004/1264/html/trip5/fig4.html
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Last modified: 12:24:33 Wed 23 Nov 2016