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29 August 2014
Friday fold: Pleistocene glacial folding of Cretaceous sedimentary rock?
The Friday fold is found in Cretaceous rocks of eastern Alberta – but far beyond the tectonic influence of the Canadian Rockies. So what’s responsible for the folding?
27 August 2014
Dinosaur bone
In July, I found a dinosaur bone in Dinosaur Provincial Park! It was lying in a wash coming off a small mesa, and sure enough, when the students and I walked up the little draw, we came to in situ bones poking out of the cliff above. After showing it to the students, I put it back down exactly where I had found it, of course.
23 August 2014
An examination of the Horseshoe Canyon Formation in eastern Alberta
An expert on the deltaic depositional setting of eastern Alberta’s Horseshoe Canyon Formation shares field evidence and expertise with Callan’s students.
12 August 2014
More Canadian Rockies student projects
In addition to the projects I linked to last week, here are a few more: Jessica H. made a Prezi about the Kananaskis Trail outcrops, with a bonus trip up to Peyto Lake. Sean D. made a PowerPoint tour of the sedimentary features we saw in the Great Plains. James focused on the Cougar Creek drainage’s damage during the 2013 floods and subsequent remediation. Finally, Josh D. explored the geological …
8 August 2014
Friday fold: Buckle vs. passive folding in the Chancellor Group slates
The Friday fold is an outcrop in Yoho National Park that showcases differences between buckle folding and passive folding.
7 August 2014
A selection of “Canadian Rockies” field course final projects
I’ve got some student work to share with you today. Like yesterday’s guest post on deltas growing into Canadian Rockies glacial lakes, my Rockies students are turning in their final projects – digital products that aim to serve the world at large by introducing key places in the Canadian Rockies to a wider audience. The idea is to go from outcrop-scale observations to the larger context, to tell the interpretive …
6 August 2014
Guest post: Glaciolacustrine deltas in the Canadian Rockies
One of Callan’s “Canadian Rockies” field course students supplies a guest post about deltas that build out into glacial lakes.
24 July 2014
Making tracks
I’ve had a great three weeks in the Canadian Rockies, but now I’m heading out. It’s been an honor and a privilege to teach in these fine mountains, among amazing rocks with talented colleagues and thoughtful students, and I’ve really enjoyed the past week of GigaPanning with my colleague Aaron Barth. Yesterday, Aaron and I saw these bear tracks in the mud next to a creek where we were GigaPanning. …
12 July 2014
Stromatolite from near Crypt Lake
Greetings from the field… here’s a scene I contemplated yesterday…
4 July 2014
Friday fold: Warspite Anticline
A final guest Friday fold from reader Howard Allen, who I’m pleased to be meeting up with in Banff late next week… Howard writes the following in describing this lovely scene: Warspite Anticline, Peter Lougheed Provincial Park, Alberta. Photo is a telephoto shot (hence the strong blue alpine haze–the colour cast is an accurate rendition of the original daylight Kodachrome slide), looking southwest at an angle to regional strike. The …
Callan Bentley is Associate Professor of Geology at Piedmont Virginia Community College in Charlottesville, Virginia. He is a Fellow of the Geological Society of America. For his work on this blog, the National Association of Geoscience Teachers recognized him with the James Shea Award. He has also won the Outstanding Faculty Award from the State Council on Higher Education in Virginia, and the Biggs Award for Excellence in Geoscience Teaching from the Geoscience Education Division of the Geological Society of America. In previous years, Callan served as a contributing editor at EARTH magazine, President of the Geological Society of Washington and President the Geo2YC division of NAGT.