State | Massachusetts |
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Name | Hoosac Formation |
Geologic age | Lower Cambrian and Proterozoic Z |
Lithologic constituents | Major
Metamorphic > SchistRusty, gray, quartz-albite-mica (-chlorite) schist and gneiss. Locally conglomeratic.
Metamorphic > GneissRusty, gray, quartz-albite-mica (-chlorite) schist and gneiss. Locally conglomeratic.
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Comments | Part of Taconic-Berkshire Zone (Ordovician and Older Rocks); east of Berkshire Highlands |
References | |
NGMDB product | |
Counties | Franklin |