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)

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Wisconsin
Wausau
Latitude: 45.0°
Longitude: -89.6°

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