|Name||Maromas Granite Gneiss|
Metamorphic > GneissLight-gray to buff, medium- to fine-grained granitic gneiss, composed of quartz and microcline with minor plagioclase and biotite. Central body is massive, but outlying strips are foliated and have accessory hornblende or garnet. Massive parts may be young anatectic intrusive rocks; foliated parts may include older felsic metavolcanic rocks belonging to unit Ochv.
Metamorphic > Metaigneous > Metavolcanicfoliated parts may include older felsic metavolcanic rocks belonging to unit Ochv
Igneous > Plutonic > Granitic > Leucocratic-granitic > PegmatitePegmatite bodies are common in the vicinity.
|Comments||Part of Eastern Uplands; Iapetus (Oceanic) Terrane - Bronson Hill Anticlinorium|
Rodgers, John, compiler, 1985, Bedrock Geological Map of Connecticut: Connecticut Geological and Natural History Survey, Hartford, Connecticut, 2 sheets, scale 1:125,000.