GRD0010S0
I-38
Rhyolite
Cenozoic › Neogene › Miocene
5.3
-
23.0
1
Ritter 154 › Cabinet 15 › Drawer F
flow banding,inclusions
-
Age data from McCurry et al 1988, found in USGS Preliminary geologic map of the East Mojave National Scenic Area, California
Van Winkel Mtns
California
Van Winkel Mtns, 30 mi NE of Amboy
Latitude: 34.99°
Longitude: -115.29°
-
Resorption in small feldspar
2.5
plane
Small feldspar in fine-grained matrix.
2.5
crossed
-
scan
crossed
GRD0010T0: Euhedral and resorbed plagioclase (albite, polysynthetic twinning, opaque inclusions, some oscillatory zonation), quartz (resorbed and embayed), spherulites, biotite (C. Eichler)
N/A
N/A