State | Connecticut |
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Name | Eastford gneiss phase [of Canterbury Gneiss] |
Geologic age | Devonian |
Lithologic constituents | Major
Metamorphic > GneissMainly light-gray, medium-grained, foliated to strongly lineated gneiss, composed of quartz, microcline, oligoclase, or albite, biotite, and muscovite.
|
Comments | Part of Eastern Uplands; Iapetus (Oceanic) Terrane - Merrimack Synclinorium |
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 | Tolland - Windham |