GRD021ES0
M-110
Layered Gneiss
Mesozoic › Cretaceous › Late Cretaceous
65.5
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99.6
0
Ritter 154 › Cabinet 24 › Drawer B
medium-grained,quartzofeldspathic,augen
Plagioclase-quartz-amphibole-biotite-garnet-pyrite (trace). Gradation from schist to gneiss. Gneiss has a slight augen texture. Pyrite and garnets are in leucocratic bands. See also M-111.
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-
California
South end of the Coyote Mountains, Borrego Springs
Latitude: 33.304134°
Longitude: -116.299381°
N/A
N/A
N/A
N/A
Theodore_GSAB_1970
Theodore, T. (1970) Petrogenesis of Mylonites of High Metamorphic Grade in the Peninsular Ranges of Southern California: Geological Society of America Bulletin, v. 81, p. 435-450.