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1 March 2019
Friday fold: Gold Harbour, South Georgia
Near Antarctica, South Georgia Island is a good place to find glaciers and penguins. And, as it turns out: massive recumbent folds! Let’s take a look.
11 April 2017
The Sixth Extinction: A Sigma Force Novel, by James Rollins
I did a double-take in the library last week. I was scanning the shelves of audio books, looking for something interesting, when I saw one called The Sixth Extinction. Ahh, such a good book – Elizabeth Kolbert did such a great job with – WAIT – This one has “James Rollins” listed as the author. It wasn’t Kolbert’s book. It was a different The Sixth Extinction. The full title is The …
9 May 2016
Three GigaPans from Heard Island
The 2016 Heard Island expedition has returned. They took a GigaPan rig with them. Explore new imagery from this remote and hostile land!
14 January 2016
Everland, by Rebecca Hunt
There’s something about Arctic and Antarctic adventure that stirs my interest. The merciless but fascinating environment, the odd fauna, the endurance, The Endurance, the way human frailties pop out against the stark backdrop. Evidently novelist Rebecca Hunt is subject to the same entrancement. She was one of 18 artists and writers who participated in the Arctic Circle residency in 2011, and I think it follows that the novel Everland resulted …
12 January 2015
Bedding / intrusion relationships, Ferrar dikes, Antarctica
Another pair of shots of the Ferrar mafic intrusives from Antarctica, courtesy of Lauren Michel… Zooming in more… There are some major disruptions to the strata – I wonder if the story is more complicated than my simple annotation suggests…
7 January 2015
A mafic sill in Antarctica
My friend and colleague Lauren Michel, the King Family Fellow at the Perot Museum of Nature and Science in Dallas, Texas, sent me this image from her recent trip to Antarctica: (click to enlarge) This is a beautiful example of a mafic igneous sill, probably of the rock known as “dolerite” (or diabase, to us Yanks). Lauren and I think it must be part of the Ferrar Large Igneous Province. …
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.