- Usage in publication:
-
- Leverett breccia
- Modifications:
-
- Named
- Dominant lithology:
-
- Breccia
- AAPG geologic province:
-
- New England province
- Deerfield basin
Summary:
Part of the Mount Toby conglomerate of Emerson (1898) is here named the Leverett breccia. It is indurated scree composed of dark fine-grained metamorphic rock and minor schist and granite. It grades into Mount Toby conglomerate, which forms an alluvial fan.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- Leverettâ€
- Modifications:
-
- Abandoned
- AAPG geologic province:
-
- New England province
- Deerfield basin
Summary:
Leverett breccia is here included in the redefined Mount Toby conglomerate. Fragments of this very coarse breccia are sharply angular. It is distributed as a fan along the eastern margin of the basin at the base of the Triassic column and is interpreted as a talus accumulation.
Source: GNU records (USGS DDS-6; Reston GNULEX).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).