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National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Thatcher Limestone Member*
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Las Vegas-Raton basin
    • Sierra Grande uplift
Publication:

Scott, G.R., 1986, Geologic and structure contour map of the Springer 30' x 60' quadrangle, Colfax, Harding, Mora, and Union Counties, New Mexico: U.S. Geological Survey Miscellaneous Investigations Series Map, I-1705, 2 sheets, scale 1:100,000 [http://ngmdb.usgs.gov/Prodesc/proddesc_9890.htm]


Summary:

Areally extended (not mapped) to northeast NM, in Colfax Co in Las Vegas-Raton basin and in Harding Co on Sierra Grande uplift, as a member of Graneros Shale. Lies a few ft above base of formation. Is of Late Cretaceous age (fossiliferous).

Source: GNU records (USGS DDS-6; Denver GNULEX).


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 ([ ]).

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