Unit Name: Ajax Formation
Unit Type: Lithostratigraphic
Usage: Currently in use
Age Interval: Precambrian (4600 - 541 ma)
Province/Territory: British Columbia
Originator: Fyles and Eastwood, 1962
The Ajax formation is a massive, grey quartzite locally interbedded with dark grey to black argillite. The quartzite is commonly cut by irregular branching white quartz veins.
= Cromwell dike or Index Formation
Fyles and Eastwood, 1962, p. 14, 23
Fyles, James T. and Eastwood, G.E.P., 1962. Geology of the Ferguson area, Lardeau District, British Columbia; British Columbia Department of Mines and Petroleum Resources, Bulletin No. 45, 92 p. + XIV plates.
Source: GSC file of geological names; T.E. Bolton and J. Dougherty (compiler)
Entry Reviewed: No
Name Set: Lithostratigraphic Lexicon
LastChange: 05 Oct 2017