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National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Turkey Creek Canyon Formation
  • Modifications:
    • Named
  • Dominant lithology:
    • Gneiss
    • Schist
  • AAPG geologic province:
    • Southern Rocky Mountain region
Publication:

Lickus, R.J., and LeRoy, L.W., 1968, Precambrian structure and stratigraphy along the mountain front west of Golden, Jefferson County, Colorado; a reconnaissance study: Colorado School of Mines Quarterly, v. 63, no. 1, p. 129-165.


Summary:

Named for typical exposures in Turkey Creek Canyon in NE1/4 sec 15, T5S, R70W, Morrison quad, Jefferson Co, CO in the Southern Rocky Mountain region. No type locality designated. Forms subdued topography. Has two distinct facies; uppermost and perhaps youngest facies is a garnet-rich, banded granite gneiss. Garnets are dark red and vary in size from l m to 3 cm in diameter. Second facies is a distinct, white or light-gray weathering, sillimanitic, mica schist or gneiss, medium grained and medium-gray on a fresh surface; biotite is abundant. Contact of underlying Idledale Formation (new) Turkey Creek Canyon Formation, can be established within about 50 ft stratigraphically. Geologic map. Cross sections. Precambrian age.

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


Map showing publication footprint
  • Usage in publication:
    • Turkey Creek Canyon Formation
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Southern Rocky Mountain region
Publication:

Tweto, Ogden, 1977, Nomenclature of Precambrian rocks in Colorado, IN Contributions to stratigraphy: U.S. Geological Survey Bulletin, 1422-D, p. D1-D22.


Summary:

Is one of several units defined in a narrow belt along east-central Front Range, near Golden, Jefferson Co, CO in the Southern Rocky Mountain region. Of doubtful use elsewhere. Assumed direction of stratigraphic sequence is debatable. Belongs with pre-1,700 m.y. metamorphic complex, or of Precambrian X 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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