|Name||Manhattan Schist (Including Waramaug Formation and Canaan Mountain Schist)|
Metamorphic > GneissDark-gray to silvery, rusty-weathering, generally coarse grained, foliated but poorly layered to massive gneiss or schistose gneiss, composed of quartz, oligoclase, microcline, biotite, and muscovite, and generally sillimanite and garnet.
Metamorphic > AmphiboliteAmphibolite layers locally, especially near base where in places separately mapped as unit CAma.
|Comments||Part of Western Uplands; Proto-North American (Continental) Terrance - Displaced Iapetus Terrane; including Waramaug Formation and Canaan Mountain Schist. Secondary unit description per CT003.|
Rodgers, John, compiler, 1985, Bedrock Geological Map of Connecticut: Connecticut Geological and Natural History Survey, Hartford, Connecticut, 2 sheets, scale 1:125,000.
Panish, P.T., 1992, The Mt. Prospect region of western Connecticut; mafic plutonism in Iapetus-sequence strata and thrust emplacement onto the North American margin, IN Robinson, Peter, and Brady, J.B., eds., Guidebook for field trips in the Connecticut Valley region of Massachusetts and adjacent states; Volume 2: University of Massachusetts, Geology Department Contribution, no. 66, New England Intercollegiate Geological Conference, 84th Annual Meeting, Amherst, MA, October, 9-11, 1992, p. 398-423.
|Counties||Fairfield - Litchfield|