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 amygdaloidal basalt from Sugar Grove, Stop 7. For a more detailed explanation, contact Jonathan Tso at jtso@radford.edu.
 
Figure 26. Photomicrograph of amygdaloidal basalt from Sugar Grove, Stop 7. Euhedral pyroxene with compositional zonation is visible, as is the groundmass of plagioclase with felted texture. Crossed polars.

 

 

U.S. Department of the Interior, U.S. Geological Survey
URL: http:// pubs.usgs.gov /circ/2004/1264/html/trip4/fig26.html
For more information, contact Jonathan Tso
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