| State | Connecticut |
|---|---|
| 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 |