GRD006GS0
I-241
Welded Ignimbrite
Cenozoic › Quaternary › Pleistocene › Gelasian
1.8
-
2.6
1
Ritter 154 › Cabinet 15 › Drawer L
-
350 below top. Grey with brown fiamme.
Age from Bogaard et all 1995
Bishop Tuff
California
Bishop
Latitude: 37.4°
Longitude: -118.4°
-
Glassy groundmass glass
2.5
plane
-
2.5
crossed
-
scan
crossed
GRD006GT0: Anhedral quartz, plagioclase (albite twinning) sanidine (polysynthetic twinning), pumice fragments, minor amount of biotite (C. Eichler)
N/A
N/A