| State |
Massachusetts |
| Name |
Intimately interfolded Littleton and Partridge Formations |
| Geologic age |
Lower Devonian and Middle Ordovician |
| Lithologic constituents |
|
| Comments |
Part of Merrimack Belt (Silurian, Devonian and Pennsylvanian Rocks) and Bronson Hill Zone (Ordovician and older rocks). Note that unit is labeled Dl+Ops on printed map. |
| References |
Zen, E-An (ed.), Goldsmith, R. (comp.), Ratcliffe, N.M. (comp.), Robinson, P. (comp.), Stanley, R.S. (comp.), Hatch, N.L., Jr., Shride, A.F., Weed, E.G.A., and Wones, D.R., 1983, Bedrock Geologic Map of Massachusetts: U.S. Geological Survey, Reston, VA, scale 1: 250,000.
https://pubs.er.usgs.gov/publication/70046713 |
| NGMDB product |
|
| Counties |
Worcester |
