Speaker explores roots of Alberta Landscape
The Royal Tyrrell Museum Speaker Series explore the Alberta landscape this Friday, March 24.
Dr. Rob Young from the University of British Columbia will present “The Shape of the Land: Pleistocene Ice Age Processes That Caused Alberta to Look the Way it Does.”
In many parts of the world, glaciation was a repetitive process where ice advanced during glacial phases and retreated during significant interglacial phases, of which there have been about 20 during the last two million years.
Therefore, glacial geologists expected that Alberta would be an overlay of glacially modified landscapes, with each glaciation reworking the features and deposits of the previous. However, research by a number of geologists over the last couple of decades has contradicted expectations and a new vision has unfolded.
Dr. Young’s talk will explore how landscape features predicted by the bulldozing or ice decay models are proven incorrect merely by the absence, or relative position of, predicted features. New ideas on glacial landscapes rely on findings from laboratory experiments, use of first principles in sedimentology, and analogues found south of the ice sheets’ limits (such as an area of catastrophic ice age mega flooding to the south with an array of similar landforms).
The net result of these studies is the idea that high-pressure water, under the ice, was the dominant regional land-forming mechanism.
The Royal Tyrrell Museum’s Speaker Series talks are free and open to the public. They are held every Thursday until April 27 at 11:00 a.m. in the Museum auditorium. Past Speaker Series talks are also available on the Museum’s YouTube channel: youtube.com/user/RoyalTyrrellMuseum
Dr. Rob Young from the University of British Columbia will present “The Shape of the Land: Pleistocene Ice Age Processes That Caused Alberta to Look the Way it Does” this Friday March 24 at Speaker Series.