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National Geologic Map Database

Geologic Unit: Denay

Usage:

Denay Limestone (NV*)


Geologic age:

Middle Devonian*


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

Type section: base of formation at about 6,840 feet elevation on east flank of Willow Creek Canyon, north side of Roberts Mountains [Lat. 39 deg. 57 min. 00 sec. N., Long. 116 deg. 19 min. 00 sec. W., Roberts Creek Mountain 15-min quadrangle], west central Eureka Co., northeastern NV. Named from Denay Valley which separates the northeastern tip of Simpson Park Range from north flank of Roberts Mountains, northeastern NV (Johnson, 1966).
[Reference] section: exposed in J-D window of northern Simpson Park Range between Red Hill (in sec. 17, T. 25 N., R. 50 E.) where the Denay is in contact with overlying Devils Gate, and a point about 1 mi to southwest where upper McColley Canyon is present (Johnson, 1966).


AAPG geologic province:

Great Basin province*


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 ([ ]).