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

Photomicrograph of gabbro from Wilfong Church (Optional Stop). For a more detailed explanation, contact Jonathan Tso at jtso@radford.edu.
 
Figure 24. Photomicrograph of gabbro from Wilfong Church (Optional Stop). Pyroxenes suggest different times of precipitation. Euhedral crystals are late; corroded crystals are early. Crossed polars.

 

 

U.S. Department of the Interior, U.S. Geological Survey
URL: https:// pubsdata.usgs.gov /pubs/circ/2004/1264/html/trip4/fig24.html
For more information, contact Jonathan Tso
Maintained by Reston Publications Service Center
Last modified: 12:24:28 Wed 23 Nov 2016
Privacy statement | General disclaimer | Accessibility