Unit Name: Kimerot Group
Unit Type: Lithostratigraphic
Rank: Group
Status: Formal
Usage: Currently in use
Age Interval: Early Proterozoic (2500 - 1600 ma)
Province/Territory: Nunavut
Originator: Grotzinger et al., 1987.
Type Locality:
The type areas for the Kenyon and Peg formations are in the vicinity of Peg Lake and Kenyon Lake, where both are well exposed (Grotzinger et al., 1987).
Distribution:
Contained within the Kilohigok Basin (Grotzinger et al., 1987).
Lithology:
The Kimerot Group contains two formations, the lower Kenyon Formation and the overlying Peg Formation. These formations correspond to the lower "siliclastic part" and the upper "carbonate part" of the old Kimerot Platform (c.f. Grotzinger and Gall, 1986) (Grotzinger et al., 1987).
Relationship:
The Kimerot Group is part of the Goulburn Supergroup. It unconformably overlies Archean basement and is overlain by the Hackett Formation of the Bear Creek Group (Grotzinger et al., 1987).
History:
The name Kimerot Group was proposed by Grotzinger et al. (1987) for the units previously designated as belonging to the "Kimerot Platform" (c.f. Campbell and Cecile, 1981; Tirrul, 1985; Grotzinger and Gall, 1986) of the lower Western River Formation. The name Western River Formation was discarded, and does not occur in the new nomenclature (Grotzinger et al., 1987).
References:
Campbell, F.H.A. and Cecile, M.P., 1981. Evolution of the Early Proterozoic Kilohigok Basin, Bathust Inlet-Victoria Island, Northwest Territories; in, F.H.A. Campbell, ed., Proterozoic Basins of Canada; Geological Survey of Canada Paper 81-10, p. 103-131.
Grotzinger, J.P. and Gall, Q., 1986. Preliminary investigations of Early Proterozoic Western River and Burnside River Formations: evidence for foredeep origin of Kilohigok Basin, N.W.T., Canada; in, Current Research, Part A; Geological Survey of Canada, Paper 86-A, p. 95-106.
Grotzinger, J.P., McCormick, D.S., and Pelechat, S.M., 1987. Progress report on the stratigraphy, sedimentology and significance of the Kimerot and Bear Creek groups, Kilohigok Basin, District of Mackenzie; in, Current Research, Part A; Geoloical Survey of Canada, Paper 87-1A, p. 219-238.
Tirrul, R., 1985. Nappes in the Kilohigok Basin and their relationship to the Thelon Tectonic Zone, District of Mackenzie; in, Current Research, Part A; Geological Survey of Canada, Paper 85-1A, p. 407-420.
Source: GSC file of geological names; T.E. Bolton and J. Dougherty (compiler)
Contributor: Michael Pashulka
Entry Reviewed: No
Name Set: Lithostratigraphic Lexicon
LastChange: 23 Mar 2011