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NGMDB
Geologic Unit: Auld Lang Syne
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Map showing publication footprint
  • Usage in publication:
    • Auld Lang Syne Group*
  • Modifications:
    • Named
  • Dominant lithology:
    • Shale
    • Sandstone
  • AAPG geologic province:
    • Great Basin province
Publication: Summary:

Named for Auld Lang Syne Peak. Type section is section in north part of East Range from SW/4 sec. 32 T23N R37E to sec. 24-23 T34N R36E, Rose Creek 7.5' quad, Pershing Co., NV. Reference section at sec. 6 T40N R39E to sec. 7 T41N R38E, south Santa Rosa Range, Paradise Valley 15' quad, Humboldt Co., NV. Consists of (ascending): previously defined Grass Valley, Osobb, Dun Glen, Winnemucca, O'Neill, Raspberry, Singas, Andorno, and Mullinix Formations. Constitutes continuous succession of variably metamorphosed, interlensing, argillaceous and sandy strata with subordinate limestone and dolomite that were derived from east source area and seemingly deposited in shallow marine, deltaic environment. Is 25,000 ft thick. Overlies Star Peak Group; unconformably underlies Tertiary volcanic rocks. Is Late Triassic and Jurassic(?) age.

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

NGMDB
Map showing publication footprint
  • Usage in publication:
    • Auld Lang Syne Group*
  • Modifications:
    • Age modified
    • Areal extent
  • AAPG geologic province:
    • Great Basin province
Publication: Summary:

Auld Lang Syne Group, undivided, geographically extended into west Pershing Co, NV, where its age is Late Triassic and Early Jurassic. Members of Auld Lang Syne Group exposed in east part of Pershing Co include Osobb, Grass Valley, Dun Glen, Winnemucca, and Raspberry Formations.

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

NGMDB
Map showing publication footprint
  • Usage in publication:
    • Auld Lang Syne Group*
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Great Basin province
Publication: Summary:

Three major influxes of fine-grained terrigenous clastic sediments from an eastern source are recorded in marine Norian (Upper Triassic) and Hettangian (Lower Jurassic) Auld Lang Syne Group of northwest NV. These cycles may correspond to major cycles of fluvial deposition in Chinle Formation 500 km to east. If this relationship is correct, age of Chinle would be late Karnian, Norian, and Hettangian, or Late Triassic and Early Jurassic.

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

NGMDB
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For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).

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