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Geologic Units: Khuchaynik
Map showing publication footprint
  • Usage in publication:
    • Khuchaynik Dolostone*
  • Modifications:
    • Named
  • Dominant lithology:
    • Dolostone
  • AAPG geologic province:
    • Alaska West-Central region
Publication:

Babcock, L.E., Blodgett, R.B., and St. John, James, 1994, New late (?) Proterozoic-age formations in the vicinity of Lone Mountain, McGrath quadrangle, west-central Alaska, IN Till, A.B., and Moore, T.E., eds., Geologic studies in Alaska by the U.S. Geological Survey, 1993: U.S. Geological Survey Bulletin, 2107, p. 143-155.


Summary:

Unit is named the Khuchaynik Dolostone for the Khuchaynik Creek, a tributary of the Middle Fork of the Kuskokwim River, east of Lone Mountain, Alaska. Consists of dolostone containing numerous packstone or grainstone beds composed of coated grains with a maximum diameter of about 1 mm, and locally vugs where grains have been dissolved. Locally strongly recrystallized sugary texture and discontinuous gossan. Weathers to light to medium gray; fresh color is medium gray. Thickness is as least 228 m at type; upper contact is faulted. Lower contact with the Lone Formation (new) is sharp and conformable; upper contact is faulted. Age is Late(?) Proterozoic.

Source: GNU records (USGS DDS-6; Menlo 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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