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Map showing publication footprint
  • Usage in publication:
    • Campbell Lake Formation
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Phyllite
    • Conglomerate
  • AAPG geologic province:
    • Northern Rocky Mountain region
Publication:

Karlstrom, K.E., and Houston, R.S., 1979, Stratigraphy and uranium potential of Early Proterozoic metasedimentary rocks in the Medicine Bow Mountains, Wyoming: Wyoming Geological Survey Report of Investigations, no. 13, 45 p.


Summary:

Pg. 15-16, 43. Campbell Lake Formation of Deep Lake Group. Widespread deposits of glacial(?) and marine origin. Is 200+ feet (65 m) thick at type section. Divided into (ascending): (1) diamictite, a poorly sorted, matrix-supported conglomerate, 39 feet thick; (2) a black to dark-gray, fine-grained, chloritic phyllite and quartz-rich phyllite, 59 feet thick; and (3) a gray phyllitic, fine-grained, locally cross-bedded quartzite, 115 feet thick. Overlies Lindsey Quartzite and underlies Cascade Quartzite (both new; of Deep Lake Group). Age is Early Proterozoic.
Type section: 1.8 km (approx. 1 mi) southwest of Campbell Lake, in SW/4 NE/4 sec. 4, T. 16 N., R. 80 W., Medicine Bow Mountains, [Turpin Reservoir 7.5-min quadrangle], Carbon Co., southeastern WY. Named from exposures east of Campbell Lake [in Sand Lake 7.5-min quadrangle, Carbon Co., southeastern WY].
[Misprint (US geologic names lexicon, USGS Bull. 1564, p. 26): type section is in T. 16 N., not T. 15 N.]

Source: GNU records (USGS DDS-6; Denver GNULEX); US geologic names lexicon (USGS Bull. 1564, p. 26).


Map showing publication footprint
  • Usage in publication:
    • Campbell Lake Formation*
  • Modifications:
    • Revised
    • Areal extent
  • AAPG geologic province:
    • Northern Rocky Mountain region
Publication:

Houston, R.S., Karlstrom, K.E., Graff, P.J., and Flurkey, A.J., 1992, New stratigraphic subdivisions and redefinition of subdivisions of Late Archean and Early Proterozoic metasedimentary and metavolcanic rocks of the Sierra Madre and Medicine Bow Mountains, southern Wyoming: U.S. Geological Survey Professional Paper, 1520, 50 p., (incl. geologic map, scale 1:125,000)


Summary:

Campbell Lake Formation. Is 3rd formation (of 5) of Deep Lake Group of Snowy Pass Supergroup (new) in the Medicine Bow Mountains, Carbon County, Wyoming (Northern Rocky Mountain region). Thickness 0 to 75 m. Campbell Lake restricted from the Sierra Madre; rocks reallocated to Singer Peak Formation (new) of the Snowy Pass Group. Unconformably overlies Lindsey Quartzite of Deep Lake Group; unconformably underlies Cascade Quartzite of Deep Lake Group. Correlates with the upper part of the Singer Peak in the Sierra Madre. Age is Early Proterozoic. Report includes correlation chart, geologic map.

Source: Modified from 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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