GRD0441S0

WMS-13

Syenite

Mesozoic › Jurassic › Middle Jurassic
161.0 - 176.0

0

Ritter 154 › Cabinet 29 › Drawer E

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Coarse Cobble Hill Syenite aka Belknap Syenite.

Loiselle (1978) description: perthitic alkali feldspar, hornblende and minor biotite. Age (168 Ma) see Van Fossen and Kent (1990) or macrostrat.org

White Mtn Series

New Hampshire
Alpine Dr and Mt Drive, at top of steep hill, gunstock Acres
Latitude: 43.56°
Longitude: -71.352°

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