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26 August 2013
Guest Post: Glaciation in Glacier National Park
This is the first of several guest posts that will appear here this week, all written by students who participated in this past summer’s Regional Field Geology of the Northern Rocky Mountains course. by Madeleine Rushing Northern Virginia Community College Sedimentary deposition typically is seen as horizontal strata, layered one on top of the other with oldest deposits on the bottom, getting progressively younger with each layer. Which makes sense, …
14 July 2013
Rockies 5 concludes
My Rockies field course has wrapped up for another year – the fifth year in a row I’ve run this intermediate-level ‘regional field geology’ course in collaboration with Pete Berquist of Thomas Nelson Community College. We were fortunate to be joined by two other professional geologists this year: Chris Khourey of NOVA and Tom Biggs of the University of Virginia. It was a great group of students; no jerks among …
22 March 2013
Introducing SmartFigures
Previously, I’ve hinted that I was working on a top secret special project for Pearson Education. Now that the books have been published, I wanted to take a moment to discuss the details of the project. In the newest editions of both Earth: An introduction to Physical Geology (Tarbuck, Lutgens, & Tasa, 2014) and Foundations of Earth Science (Lutgens, Tarbuck, & Tasa, 2014), you’ll find a series of videos that I’ve …
7 February 2013
Extra credit
A quick poll: What do you think of extra credit as an option in teaching? I’m in the beginning stages of designing an online course, and because of inter-campus politics at NOVA, I’ll be co-designing it with a team of four other people, three of whom I know pretty well and totally respect. Still: one big philosophical distinction that we’re going to have to discuss is the question of whether …
18 January 2013
Callan describes what he does in #upgoerfive language
Okay, I’ll bite. I work at making people understand more about the big rock that we live on. I use pictures and drawing on the pictures to show how the rocks have changed because of pushing on the rocks. This pushing happens because of blocks of rock that move together and sometimes push into other blocks. Other times, a rock block will move away from another rock block. Then the …
28 November 2012
AW 52: Dream geology courses
Shawn at the blog Vi-carius is hosting this month’s Accretionary Wedge. He asks for a geoblogosphere-wide brainstorm on “dream geology courses” – an inspirational topic! I have a few ideas: A travel course dedicated to exploring the roots of geological thinking and the geological timescale. It would clearly need to be based in the U.K. and Scotland in particular, with forays into Ireland, France, and the foothills of the Alps. …
14 November 2012
Milestones
Callan reflects on major moments this week in his personal and professional lives.
9 October 2012
AW50: The tweaked pinkie
My AGU Blogosphere neighbor Evelyn of Georneys fame is hosting this month’s Accretionary Wedge. Her topic? “Field camp memories”… I never attended a bona fide field camp myself, but I attended a lovely “regional field geology” course that my undergraduate alma mater, the College of William & Mary, put on each summer in the Colorado Plateau. Most of my field course experience has actually been in the past four summers, …
17 August 2012
Guest post: Turtle Mountain and the infamous Frank Slide
A guest post by Nicholas Rossi, a student in Callan’s Canadian Rockies field course. Turtle Mountain is located in the Blairmore Range in Alberta Canada about 160km south of Calgary. It is the site of the Frank Slide, a landslide of over 90 million tons of rock that gave way on Turtle Mountain’s East side and covered part of the small coal mining town of Frank in about 100 seconds! …
13 August 2012
Class portrait at the Walcott Quarry
Here’s my crew from July’s Regional Field Geology of the Canadian Rockies course, checking out the Burgess Shale at the Walcott Quarry in Yoho National Park. A couple of the locals joined us for this portrait. Original photo courtesy of Stephen Smith, modified by CB
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.