Barber Hill stock - syenite

A small, 0.5-km-long, northwest-trending stock consisting of a coarse-grained alkali syenite core, a fine-grained quartz syenite border, and associated trachyte dikes (Kfd). K-Ar biotite age of 114±2 Ma (Armstrong and Stump, 1971). Part of the White Mountain Igneous Suite.
State Vermont
Name Barber Hill stock - syenite
Geologic age Early Cretaceous
Lithologic constituents
Major
Igneous > Plutonic > Syenitic > Quartz-syenite (Stock or pipe)A small, 0.5-km-long, northwest-trending stock consisting of a coarse-grained alkali syenite core, a fine-grained quartz syenite border.
Igneous > Plutonic > Syenitic > Alkali-feldspar-syenite (Stock or pipe)A small, 0.5-km-long, northwest-trending stock consisting of a coarse-grained alkali syenite core, a fine-grained quartz syenite border.
References
NGMDB product
Counties Chittenden