GRD00I3S0
I-736
Diorite
Paleozoic › Devonian
359.0
-
416.0
1
Ritter 154 › Cabinet 15 › Drawer P
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diorite (Pl-Px/Amph-Bi); probably the 390 Ma Salem gabbro-diorite
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Massachusetts
Salem
Latitude: 42.5°
Longitude: -70.9°
GRD00I3T0: Plagioclase, biotite, orthopyroxene, sanidine, quartz, opaque oxides. Resorption and slight alteration. (C. Eichler)
N/A
N/A