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Map showing publication footprint
  • Usage in publication:
    • Gale Hills Formation
  • Modifications:
    • Named
  • Dominant lithology:
    • Conglomerate
    • Sand
  • AAPG geologic province:
    • Great Basin province
Publication:

Longwell, C.R., Pampeyan, E.H., Bowyer, Ben, and Roberts, R.J., 1965, Geology and mineral deposits of Clark County, Nevada: Nevada Bureau of Mines and Geology Bulletin, no. 62, 230 p., (incl. geologic maps, scale 1:250,000), Prepared in cooperation with USGS


Summary:

Gale Hills Formation is named for exposures in the Gale Hills, Clark Co, NV. Type section is located in T20S R65E [Callville Bay and Government Wash 7.5' quads]. Consists of three units (ascending): 1)basal conglomerate made of rounded pebbles and cobbles derived from several Paleozoic and Mesozoic formations, succeeded by layers of fine-grained sand, silt, and clay (similar to the Willow Tank Formation); 2) Sand derived from the Aztec Sandstone, abruptly grading into coarse bouldery deposits (resembles the Baseline Sandstone); 3) bouldery rubble derived from carbonate beds in [local] Paleozoic formations, grading into finer material, with local ash beds (resembles the Overton Fanglomerate). [Thickness is greater than 7500 ft, as shown on measured section.] Overlies the Aztec Sandstone; underlies the Horse Spring Formation. Age is Cretaceous(?) or Tertiary(?).

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


Map showing publication footprint
  • Usage in publication:
    • Gale Hills Formation
  • Modifications:
    • Not used
Publication:

Bohannon, R.G., 1984, Nonmarine sedimentary rocks of Tertiary age in the Lake Mead region, southeastern Nevada and northwestern Arizona: U.S. Geological Survey Professional Paper, 1259, 72 p., (incl. geologic map, scale approx. 1:790,000) [Available online from the USGS PubsWarehouse: http://pubs.er.usgs.gov/pubs/pp/pp1259]


Summary:

Name not used. Rocks formerly assigned to it are reassigned to Baseline Sandstone, Horse Spring Formation, and to an informal unit called red sandstone unit. Stratigraphic diagram.

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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