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Geologic Unit: Masuk
Map showing publication footprint
  • Usage in publication:
    • Masuk sandstone*
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Sandstone
  • AAPG geologic province:
    • Paradox basin
Publication:

Gilbert, G.K., 1877, Report on the geology of the Henry Mountains: U.S. Geological and Geographical Survey, Rocky Mountain region (Powell), 160 p., (incl. geologic maps), Expanded 2nd edition, 170 p., 1880


Summary:

Pg. 4+. Masuk sandstone. Heavy-bedded yellow sandstone, 500 feet thick, overlying Masuk shale in Masuk Plateau. Present in Henry Mountains region, [Wayne and Garfield Counties], central southern Utah. Age is Late Cretaceous.
[GNC remark (ca. 1938, US geologic names lexicon, USGS Bull. 896, p. 1318): Masuk sandstone member of Mesaverde formation. Now treated by USGS as basal member of Mesaverde formation in Henry Mountains region.]

Source: US geologic names lexicon (USGS Bull. 896, p. 1318).


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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