GRD02OBS0
Calif 1004
Folds
Mesozoic › Cretaceous › Late Cretaceous
65.5
-
99.6
1
Ritter 154 › Cabinet 29 › Drawer A
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No hand sample. Thin section only. Original description: Blastomylonite - fault zone material showing effects of extreme cataclasis and recrystallization. Note the layering showing different extents of granulation.
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Borrego SZ
California
Borrego Springs area, Montezuma Grade from campground area at top of grade, San Diego county
Latitude: 33.20833°
Longitude: -116.54233°
N/A
Coarse grained delta clast and lense of recrystallized quartz
2.5
plane
Coarse grained delta clast and lense of recrystallized quartz
2.5
crossed
GRD02OBT0: Large section: Broken into many pieces. The various layers show different amounts of graulation of quartz. Brown mica in the melanosomes, and quartz in the leucosomes. (C. Eichler)
N/A
N/A