- Usage in publication:
-
- Swandyke Hornblende Gneissâ€
- Modifications:
-
- Abandoned
- AAPG geologic province:
-
- Southern Rocky Mountain region
Summary:
Abandoned herein. Name applied to a lithic type that occurs in many stratigraphic positions in metamorphic complex. Indiscriminate application has given term a purely compositional connotation and has destroyed whatever stratigraphic status it originally had. Listed as a unit of central Front Range, CO of the pre-1,700 m.y. (Precambrian X) metamorphic suite.
Source: GNU records (USGS DDS-6; Denver 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 ([ ]).