GRD00GRS0
I-688
Granodiorite
Precambrian › Proterozoic › Mesoproterozoic
1000.0
-
1600.0
1
Ritter 154 › Cabinet 15 › Drawer O
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Fine-grained, grey granodiorite (Q, Kspar, Plag, Bi). Original description: Diorite porphyry (Hb-altered Pl).
presumably Mesoproterozoic granodiorite from Grand Tetons
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Wyoming
Jackson
Latitude: 43.5°
Longitude: -110.8°
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Orthopyroxene and biotite with oxide and apatite inclusions.
2.5
plane
Orthopyroxene and biotite with oxide and apatite inclusions.
2.5
crossed
-
scan
crossed
GRD00GRT0: Quartz, sanidine, plagioclase, biotite (oxide inclusion-rich), clinopyroxene, opaques. Resorption in some biotite and clinopyroxene. (C. Eichler)
N/A
N/A