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

Geologic Unit: Tate

Usage:

Tate Member of Ashlock Formation (KY*)
Tate Member of Grant Lake Limestone (KY*)


Subunits:

MEMBER STATUS: Back Bed (KY*).


Geologic age:

Late Ordovician (Cincinnatian; Maysvillian)*


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

Uncertain but probably named from outcrops along Tate Creek about 3 mi northwest of Richmond, Madison Co., KY. [From GNU records (USGS DDS-6; Reston GNULEX]


AAPG geologic province:

Cincinnati arch*


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 ([ ]).