- Usage in publication:
-
- Chatham granite
- Modifications:
-
- Original reference
- Dominant lithology:
-
- Granite
- AAPG geologic province:
-
- New England province
Summary:
Pg. 82, etc., map. Chatham granite. Coarse nonporphyritic two-mica granite, which often intrudes Montalban group in lit-par-lit fashion. Covers many sq mi in Chatham Township [North Conway quadrangle], White Mountains, northern New Hampshire. Assigned to pre-Cambrian(?); may be early Paleozoic. For a fine-grained and somewhat younger phase of Chatham granite, which intrudes the injection gneisses, I propose the term Randolph granite.
Source: US geologic names lexicon (USGS Bull. 896, p. 403-404).
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 ([ ]).