- Usage in publication:
-
- Berry Ledge Member
- Modifications:
-
- Revised
- AAPG geologic province:
-
- New England province
Summary:
Sangerville Formation in the Buckfield area is divided into (ascending): Moody Brook, Berry Ledge, Noyes Mountain, Patch Mountain, and Turner members. Replaces Buckfield Group and overlies Anasagunticook Member of Waterville Formation. [Intent to revise the above units is not stated, but subdivision of the Sangerville and its lower contact are clearly shown in a stratigraphic column.] Order of younging within the Sangerville differs from reports of previous workers. Graded sequences suggest an inverted lithologic package. Rocks in this area were subjected to three deformational events.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- Berry Ledge Formation
- Modifications:
-
- Not used
- AAPG geologic province:
-
- New England province
Summary:
Rocks previously mapped as Berry Ledge Formation in Bryant Pond, ME, 15-min quad by Guidotti (1965) are here assigned to unnamed limestone member of Silurian (Llandoverian and Wenlockian) Waterville Formation because similar rocks have been mapped within Waterville outside the area originally assigned to Berry Ledge and correlation cannot be confirmed. [Name not abandoned in this report.]
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 ([ ]).