| State | Rhode Island |
|---|---|
| Name | Unknown |
| Geologic age | Age uncertain |
| Comments | Used for polygons for which there is no information. No age or lithology table entries. |
| 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 - Washington |