| State | Rhode Island |
|---|---|
| Name | Conanicut Group - East Passage Formation |
| Geologic age | Cambro-Ordovician |
| Lithologic constituents |
Major
Sedimentary > Clastic > Siltstone (Bed)
Metamorphic > Metasedimentary > Metaclastic > Phyllite
Sedimentary > Clastic > Sandstone (Bed)
Incidental
Sedimentary > Carbonate > Limestone (Bed)
Igneous > Volcanic (Pyroclastic-tuff)sparse volcanic rock including welded-tuff
|
| Comments | Part of Esmond-Dedham Subterrane (East Bay Area) |
| References | Hermes, O.D. (comp.), Gromet, L.P. (comp.), Murray, D.P. (comp.), Hamidzada, N.A., Skehan, J.W., and Mosher, S., 1994, Bedrock geologic map of Rhode Island: Rhode Island Map Series No. 1, Kingston, Rhode Island, scale 1:100,000. |
| NGMDB product | |
| Counties | Newport |