Get this from a library! Precambrian geology of the southern Canadian Shield and the eastern Baltic Shield: U.S.A.-U.S.S.R.-Canada joint seminar, August 21 . Book Chapter Reg Precambrian Shield Author(s) R. N. Farvolden R. N. Farvolden Department of Earth Sciences, University of Waterloo, Waterloo, Ontario NL2 3G1, Canada. Search for other works by this author on: GSW. Google Scholar; O. Pfannkuch O. Pfannkuch. Principles of Precambrian Geologyis an update to the book, Precambrian Geology: The Dynamic Evolution of the Continental Crust, by the same author. The new edition covers the same topics in a more concise and accessible format and is replete with explanatory figures, tables, and illustrations. Card, K.D. and Poulsen, K.H. Geology and mineral deposits of the Superior Province of the Canadian Shield; Chapter 2 in Geology of the Precambrian Superior and Grenville Provinces and Precambrian Fossils in North America, (co-ord.) S. Lucas; Geological Survey of Canada, Geology of Canada, no. 7, p. 13– (also Geological Society of America, The Geology of North America, v.
Davidson, A. An overview of Grenville Province geology, Canadian Shield; Chapter 3 in Geology of the Precambrian Superior and Grenville Provinces and Precambrian Fossils in North America, (co-ord.) S.B. Lucas and M.R. St-Onge; Geological Survey of Canada, Geology of Canada, no. 7, p. – (also Geological Society of America, The Geology of North America, v. The Canadian Shield or Bouclier canadien (French), also called the Laurentian Plateau, is a large area of exposed Precambrian igneous and high-grade metamorphic rocks (geological shield) that forms the ancient geological core of the North American continent (the North American Craton or Laurentia). Glaciation has left the area only a thin layer of soil, through which the composition of igneous. The Precambrian rocks of the Canadian Shield cover 4,, km 2 (1,, sq mi) of Canada and the Lake Superior and Adirondack regions of the United States of America. Except on the northeastern side, facing the Greenland Shield, the Canadian Shield is surrounded by relatively undisturbed Phanerozoic rocks which were protected by the stable Precambrian basement. Indian Shield: Precambrian Evolution and Phanerozoic Reconstitution highlights unique evolutionary trends covering a period of over 3, million years, from the oldest crust to the most recent geological activity of the Indian Subcontinent. The book discusses regional terrain geology in terms of the evolutionary history of the crust, describing how the Precambrian Shield evolved from a stable.
This GIS dataset comprises the bedrock contacts (polygon outline features) of Map , Geology of the Precambrian Shield in northeastern Alberta, NTS 74M and NTS 74L, published by the Alberta Geological Survey. The data are created in ArcInfo and output for public distribution in shapefile format. Precambrian Shield • The Precambrian is present in the sub-surface directly beneath glacial sediments where the Trans-Canada Highway crosses the Brokenhead River. • However because of the thickness of the Sandiland – Milner Ridge Interlobate Moraine, the first appearance of Precambrian granitic rocks at surface, is not until you cross. Precambrian - Precambrian - Precambrian geology: By international agreement, Precambrian time is divided into the Archean Eon (occurring between roughly billion years ago and billion years ago) and Proterozoic Eon (occurring between billion and million years ago). After the Precambrian, geologic time intervals are commonly subdivided on the basis of the fossil record. Western Canada during the Precambrian Laurentia extends as far west as eastern B.C. (Figure ), but the ancient rocks of the craton are almost completely covered by younger rocks in B.C., Yukon, and all of Alberta except the far northeast corner.