5.6: A1 Amphibolite
- Page ID
- 11139
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Click on the image to enlarge.
This is in Galax. Houses were constructed on this site shortly after this field trip. You can see some of the cabins/houses in the background. This is an amphibolite (massive boulders) with some schist on the left side of the first photo. This is on the other side of a hill from A1 B2 Schist (next stop).
1st = plane polarized light; 2nd = cross-polarized light.
Garnet surrounded by hornblende and quartz. Look at the inclusions in the garnet porphyroblast.
Entire thin section scan. 1st = ppl; 2nd = xpl.