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National Geologic Map Database

Geologic Unit: Sly Gap

Usage:

Sly Gap Formation (NM*)


Geologic age:

early Late Devonian (Frasnian)*


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

In sec. 25, T. 11 S., R. 5 E., Sierra Co., NM (Stevenson, 1945).
Type section: south slope of Sheep Mountain, San Andres Mountains, Sierra Co., NM (Cooper and Dutro, 1982).


AAPG geologic province:

Orogrande 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 ([ ]).