The third part of the debate about time classification and correlation of Precambrian rocks and events in Canada continues with discussion of the fundamental philosophies of geological time scales, assessment of previous proposals and the description of a chart with three scales. This chart, intended for use in the Geological Atlas of Canada, includes a chronometric scale for international correlation and reference to isotopic ages, the chronometric/chronolithic hybrid scale proposed for the Decade of North American Geology publications, and a modified (primarily chronolithic) version of Stockwell's chrono-orogenic scale which appeared in the first part of this debate.

The Council is a forum of representatives of major Canadian earth science societies, universities, and government agencies, working co-operatively to encourage the development of the geosciences for national and geoscience profession interests. Contains annual reports from the President, Executive Director, Treasurer, Foreign Secretary, all member societies, associate members, standing committees, report committees and advisory and steering committees. Reviews functions, general activities for the year and administrative caseloads. Includes data on students enrolled or graduating in associated disciplines.