GRD0441S0
WMS-13
Syenite
Mesozoic › Jurassic › Middle Jurassic
161.0
-
176.0
0
Ritter 154 › Cabinet 29 › Drawer E
-
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°
