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Geologic Unit: Auld Lang Syne

Publication:
Burke, D.B., and Silberling, N.J., 1973, The Auld Lang Syne 
   Group, of Late Triassic and Jurassic(?) age, north-central 
   Nevada, IN Contributions to stratigraphy: U.S. Geological 
   Survey Bulletin, 1394-E, p. E1-E14.
Usage in Publication:
Auld Lang Syne Group*

Modifications: Geologic Province: Dominant Lithology:
 Named
 Great Basin province
 Shale
 Sandstone

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).


Publication:
Johnson, M.G., 1977, Geology and mineral deposits of Pershing 
   County, Nevada: Nevada Bureau of Mines and Geology Bulletin, 
   no. 89, 115 p., (incl. geologic map, scale 1:250,000)
Usage in Publication:
Auld Lang Syne Group*

Modifications: Geologic Province: Dominant Lithology:
 Age modified
 Areal limits
 Great Basin province
 

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).


Publication:
Lupe, R., and Silberling, N.J., in press, A suggested genetic 
   correlation of continental rocks of the Colorado Plateau with 
   marine Upper Triassic rocks of the Basin and Range: Geological 
   Society of America Bulletin, v. __., Presented at the Geological 
   Society of America, 92nd Annual Meeting, San Diego, CA, 
   November 5-8, 1979; Geological Society of America, Abstracts 
   with Programs, v. 11, no. 7, p. 470.
Usage in Publication:
Auld Lang Syne Group*

Modifications: Geologic Province: Dominant Lithology:
 Overview
 Great Basin province
 

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).