Stockbridge Formation

Beige, tan, and dark-gray weathering quartzose dolomite marble containing interbeds of black, green and maroon phyllite and punky weathering blue quartz pebble quartzite.
State Massachusetts
Name Stockbridge Formation
Geologic age Lower Cambrian
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metacarbonate > Marblequartzose dolomite marble
Incidental
Metamorphic > Metasedimentary > Metaclastic > Quartzitepunky weathering blue quartz pebble quartzite
Metamorphic > Metasedimentary > Metaclastic > Phyllite
Comments Part of Taconic-Berkshire Zone (Ordovician and Older Rocks)
References
NGMDB product
Counties Berkshire