State | Connecticut |
---|---|
Name | Rowe Schist |
Geologic age | Lower Ordovician or Cambrian or both |
Lithologic constituents |
Major
Metamorphic > SchistLight-gray to silvery, fine- to medium-grained, generally poorly layered schist, composed of quartz, muscovite, biotite, oligoclase, and generally garnet, staurolite, and kyanite or sillimanite.
Metamorphic > Granoblastic > Granofels
Minor
Metamorphic > Metasedimentary > Calc-silicate-rockquartz-spessartine rock (coticule), and calc-silicate rock.
Metamorphic > Amphibolite
|
Comments | Part of Central Lowlands; Iapetus (Oceanic) Terrane - Connecticut Valley Synclinorium; Hartland Belt |
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 | Fairfield - Hartford - Litchfield - New Haven |