State | Massachusetts |
---|---|
Name | Quinebaug Formation |
Geologic age | Ordovician, Cambrian, or Proterozoic Z |
Lithologic constituents | Major
Metamorphic > Amphibolite
Metamorphic > Gneissbiotite and hornblende gneiss, felsic gneiss, and calc-silicate gneiss
|
Comments | Part of Nashoba Zone (Silurian and Older Rocks) |
References | |
NGMDB product | |
Counties | Worcester |