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National Geologic Map Database

Geologic Unit: Judd Hollow

Usage:

Judd Hollow Member of Carmel Formation of San Rafael Group (AZ*,UT*)
Judd Hollow Tongue of Carmel Formation of San Rafael Group (AZ*,UT*)


Geologic age:

Jurassic, Middle*
Bajocian, late*


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

Type section (corrected): Judd Hollow section in center of W/2 sec. 36, T. 43 S., R. 1 E., south side of Kaiparowits Plateau, Kane Co., southern UT [approx. Lat. 37 deg. 01 min. 38 sec. N., Long. 111 deg. 45 min. 20 sec. W.] (Peterson and Pipiringos, 1979).
Named from exposures on north side of Judd Hollow, Kane Co., southern UT (Phoenix, 1963).


AAPG geologic province:

Paradox basin*
Plateau sedimentary province*
South Western Overthrust*


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 ([ ]).