GRD00GLS0
I-682
Syenite
Precambrian › Proterozoic › Mesoproterozoic › Calymmian
1400.0
-
1600.0
0
Ritter 154 › Cabinet 15 › Drawer C
Porphyritic
Porphyritic syenite (Ks-Hb-Q). Probably Wausau Pluton (Q syenite with xenoliths of biotite schist and sillimanite-bearing quartzite).
Age from W. R. Van Schmus et all (1975)
-
Wisconsin
Wausau
Latitude: 45.0°
Longitude: -89.6°