Silicified rock and mylonite along Mesozoic faults

Close network of quartz veins and veinlets cutting each other and older rock, which is mostly replaced by very fine grained quartz. In places, incompletely replaced rock shows strongly mylonitic texture.
State Connecticut
Name Silicified rock and mylonite along Mesozoic faults
Geologic age probably mainly Jurassic
Lithologic constituents
Major
Tectonite > MyloniteClose network of quartz veins and veinlets cutting each other and older rock, which is mostly replaced by very fine grained quartz. In places, incompletely replaced rock shows strongly mylonitic texture.
Comments Part of Eastern Uplands; Fault-related rocks
References

Rodgers, John, compiler, 1985, Bedrock Geological Map of Connecticut: Connecticut Geological and Natural History Survey, Hartford, Connecticut, 2 sheets, scale 1:125,000.

NGMDB product
Counties New Haven - New London - Tolland - Windham