U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Pass Creek

Usage:

Pass Creek Sandstone (CO)


Geologic age:

Pennsylvanian, Middle
Desmoinesian
Pennsylvanian, Late
Missourian


Type section, locality, area and/or origin of name:

Pass Creek Pass, from which unit is named, Huerfano Co., CO (Bolyard, 1959).


AAPG geologic province:

Las Vegas-Raton basin


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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).