- Usage in publication:
-
- French Pond granite*
- Modifications:
-
- Revised
- Age modified
- AAPG geologic province:
-
- New England province
Summary:
French Pond granite assigned to New Hampshire plutonic series (name revised). Age modified to Late Devonian(?).
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- French Pond Granite*
- Modifications:
-
- Geochronologic dating
- Age modified
- AAPG geologic province:
-
- New England province
Summary:
Not separately mapped on 1:250,000-scale geologic map, but used as French Pond Granite on 1:500,000-scale derivative map of plutons and sample localities for isotopic dating. Age of 365 +/-4 Ma [Late Devonian per time scale of Palmer, 1983] by U/Pb methods from Aleinikoff and Moench (1987, Geological Society of America, Abstracts with Programs, v. 19, p. 1).
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 ([ ]).