Geology and wine 10: use of geographic information system technology to assess viticulture performance in the Okanagan and Similkameen valleys, British Columbia P.A. Bowen SUMMARY The complex geological history of the Okanagan and Similkameen valleys in British Columbia has created a wine growing region by way of diverse bedrock, soils, terrain and climate. Although wine […]
Category: Geoscience Canada
A threat to geoscience education: creationist anti-evolution activity in Canada Jason R. Wiles SUMMARY The rejection of biological and geological evolution is a pervasive problem in science education. Recent events in the United States have brought anti-evolution activity to the forefront in media coverage of science education, but Canadians are often unaware that such creationist, […]
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Geology of Canadian Wetlands
Geology of Canadian Wetlands Barry G. Warner SUMMARY Wetlands have not gained as much attention as they ought to by geologists despite being so prevalent in the Canadian landscape. Some of this stems from a poor understanding of wetland geology and what wetland landforms are. Wetlands constitute unusual landforms in that they are formed of […]
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Collapse Ward Chesworth Collapse By Jared Diamond 2005, Viking A Short History of Progress By Ronald Wright 2004, Anansi Press “You think that a wall as solid as the earth separates civilization from barbarism. I tell you the division is a thread, a pane of glass. A touch here, a push there, and you bring […]
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The Surface of Mars
The Surface of Mars Gordon Osinski The Surface of Mars M. H. Carr Cambridge University Press Cambridge Planetary Science Series No. 6 (2007) ISBN-10: 0521872014 ISBN-13: 978-0521872010 Price $150.00 (Hardback) The Geology of Mars: Evidence from Earth-Based Analogs Edited by M. G. Chapman Cambridge University Press Cambridge Planetary Science Series No. 5 (2006) ISBN-10: 0521832926 […]
Igneous rock associations in Canada 3. Large Igneous Provinces in Canada and adjacent regions: 3 Ga to Present R.E. Ernst SUMMARY Earth history is punctuated by numerous periods during which large volumes of mafic magma were emplaced. Such magmas not generated by a ‘normal’ spreading ridge or by subduction are termed Large Igneous Provinces (LIPs), […]
Igneous Rock Associations 9. Ophiolites 1: from the beginning to modern times Rejean Hebert SUMMARY This paper on ophiolites is the first of four that will appear in Geoscience Canada; it reviews a fascinating history dating back to the very first, glorious days of field mapping in the western Alps in the 1800s. Originally used […]
Emerald and aquamarine mineralization in Canada Lee A. Groat SUMMARY This paper reviews the geology, mineralogy, and origin of the gem varieties of beryl, including emerald (green) and aquamarine (blue); it focuses on western Canada, especially the Yukon Territory, because this is where most of the recent discoveries have been made. However, emerald occurrences in […]
Proud Heritage: People and Progress in Early Canadian Geoscience Christy Vodden Edited by R.W. Macqueen Geological Association of Canada, Geoscience Canada Reprint Series 8, 2004, hardcover, 252 pages, $65 ($52 for GAC members). Everyone interested in the history of geoscience in Canada (and that would be everyone reading this magazine, I hope) owes a huge […]
Igneous rock associations 5. oceanic island volcanism II: mantle processes John D. Greenough SUMMARY Oceanic island basalts (OIBs) have been central to understanding evolution of the Earth and mantle because their isolated positions in ocean basins limit the potential for magma contamination by continental crust. Melting processes (e.g., percentage melting) affect OIB chemistry but isotopic […]