State | Connecticut |
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Name | Ultramafic rock |
Geologic age | Ordovician or older |
Lithologic constituents |
Major
Igneous > Plutonic > UltramaficUltramafic rock, originally composed of olivine and pyroxene, now generally altered to tremolite, talc, chlorite, or serpentine.
Minor
Metamorphic > Metaigneous > SerpentiniteUltramafic rock, originally composed of olivine and pyroxene, now generally altered to tremolite, talc, chlorite, or serpentine.
|
Comments | Part of Central Lowlands; Iapetus (Oceanic) Terrane - Connecticut Valley Synclinorium, and Eastern Uplands; Iapetus (Oceanic) Terrane - Bronson Hill Anticlinorium. |
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 - Middlesex - New Haven |