Usage:
Indian Run Formation (VA*)
Geologic age:
Precambrian*
Proterozoic, Late*
Cambrian, Early*
Type section, locality, area and/or origin of name:
Exposures along Indian Run from just southeast of the intersection of Little River Turnpike and Evergreen Lane to the point at which Indian Run is crossed by Braddock Road, Annandale 7.5-min quadrangle, Fairfax Co., VA (Drake, 1985).
AAPG geologic province:
Piedmont-Blue Ridge province*
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 ([ ]).