Students reveal glacial secrets

摘要

In the summer of 2009, Dan Kelleher and Ken Borrell of the Midwest GeoSciences Group drove 20 hours from their home city of Waverly, Minn., to the University of Calgary in Calgary, Alta., to experience their first sonic borehole in Canada. Midwest Geowas offering one of its workshops on glacial successions for more than 50 geologists from Canada and the United States. The course teaches the principles of sedimentary depositions, the effects of sedimentary weathering and the methods to describe those elements on boring logs. The workshop also allows the university's geological, engineering and environmental sciences students to identify the same geological units in different boreholes in the region.