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

Geologic Unit: Van Bibber

Usage:

Van Bibber Shale Member of South Platte Formation of Dakota Group (CO*)


Subunits:

Informal Helmer claystone bed (CO*).


Geologic age:

Early Cretaceous*


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

Type section (composite): on scarp of hogback north of Van Bibber Creek, Jefferson Co., CO (Waage, 1955).


AAPG geologic province:

Denver 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 ([ ]).