stripes
Occurrence number:
174-00-139
Country:
United States
Region:
Connecticut
Location:
Longitude: -72.37, Latitude: 41.37
Carbonatite:
No
In the southeastern corner of the Deep River Quadrangle, a sequence of granite gneisses includes a layer of aegirine-augite granite gneiss, the Joshua Rock gneiss, which extends into the unmapped quadrangle to the east. It is a weakly foliated gneiss of microperthite, about 30% quartz, 6% aegirine-augite and accessories.
References:
LUNDGREN, L. 1963. The bedrock geology of the Deep River Quadrangle. Quadrangular Report of the State Geological and Natural History Survey of Connecticut, 13: 1-40
Location: