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Geologic Unit: Sanostee
Map showing publication footprint
  • Usage in publication:
    • Sanostee Sandstone Member
  • Modifications:
    • First used
  • Dominant lithology:
    • Sandstone
  • AAPG geologic province:
    • San Juan basin
Publication:

Jacka, A.D., 1970, Sediment economics of Upper Cretaceous sandstones, Rocky Mountain region, IN Enyert, R.L., and others, eds., Symposium on Wyoming sandstones; their economic importance, past, present, and future: Wyoming Geological Association Field Conference Guidebook, 22nd Annual Field Conference, Casper, WY, September 21-23, 1976, no. 22, p. 187-219.


Summary:

First published use as a member of Gallup Sandstone. Named for Sanostee Trading Post north of Gallup in McKinley Co, NM in the San Juan basin. Gradational contact with Mancos Shale. Intent to name not stated. Upper contact not discussed. Relationship to other part of Gallup not discussed. This sandstone was deposited in a infra-surfzone, surfzone, and on a beach. Has giant ripple foresets in the surfzone phase that indicate longshore current flow toward northwest and southeast. Near Sanostee Trading Post, tidal inlet deposits of current ripple cross-bedded units oriented northeast and southwest record ebb and flow directions. Character of lithology, thickness, areal extent, and relationship to other stratigraphic units of sandstone not discussed. Of Late Cretaceous age.

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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