U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Geologic Unit: Miguel
Search archives
Map showing publication footprint
  • Usage in publication:
    • Miguel formation*
  • Modifications:
    • Named
  • Dominant lithology:
    • Sandstone
    • Shale
  • AAPG geologic province:
    • Orogrande basin
    • Basin-and-Range province
Publication:

Winchester, D.E., 1920, Geology of Alamosa Creek Valley, Socorro County, New Mexico, with special reference to the occurrence of oil and gas, IN Contributions to economic geology, 1920; Part 2, Mineral fuels: U.S. Geological Survey Bulletin, 716-A, p. 1-15.


Summary:

Miguel formation. Yellow sandstones, massive and persistent, also soft sandstones, drab and yellow sandy shales, a few beds of clay, and several beds of coal in upper half. Abundant invertebrate fossils and a few plant remains. Contains 4 persistent massive yellow sandstone members, 2 of which are here named, Bell Mountain sandstone member being applied to the one at top and Gallego sandstone member to the one near middle. The 2 lower sandstones may represent Tres Hermanos sandstone member of Lee. Thickness 2,080 feet. Underlies Chamiso formation and overlies Dakota sandstone. Benton fauna abundant. Is not exactly = Mancos shale, hence local name. Age is Late Cretaceous. Recognized in Alamaso Creek Valley [now Alamocita Creek] area, Socorro [and Catron] Cos., southwestern NM.
Named from Miguel Creek [now Miguel Chavez Canyon], which crosses the beds in northwest part of area [Alamocita Creek Valley], [Catron and] Socorro Cos., southwestern NM.
[Miguel Chavez Canyon and Alamocita Creek are in Catron County (est. Feb. 1921) and Socorro County, Magdalena quadrangle, scale 1:100,000.]

Source: US geologic names lexicon (USGS Bull. 896, p. 1367).


Map showing publication footprint
  • Usage in publication:
    • Miguel formation*†
  • Modifications:
    • Abandoned
Publication:

Dane, C.H., Wanek, A.A., and Reeside, J.B., Jr., 1957, Reinterpretation of section of Cretaceous rocks in Alamosa Creek Valley area, Catron and Socorro Counties, New Mexico: American Association of Petroleum Geologists Bulletin, v. 41, no. 2, p. 181-196. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Abandoned as a name in Socorro Co, NM in the Orogrande basin. Is an upfaulted duplication of the Gallego sandstone member. Original definition was incorrect and beds measured and mapped in type were duplicated.

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 ([ ]).

Accessibility FOIA Privacy Policies and Notices

USA Gov U.S. Department of the Interior | U.S. Geological Survey
Supported by the National Cooperative Geologic Mapping Program
Page Contact Information: Personnel
Page Last Modified: Thu 04 Apr 2024 04:02:49 PM MDT