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27 March 2015
Friday fold: Isla Escarpada, Chile
I’m very nearly delinquent on posting the Friday fold… Here you go – a Google Earth view of a differentially-weathered fold partly above and partly below sea level in Chilean Patagonia, south of Puerto Natales: They call it Isla Escarpada. Awesome. Here’s a Google Maps link if you want to explore it yourself. Happy Friday!
5 December 2014
Friday folds from the Shenandoah River
My student Josh B. found this beautiful map view of a plunging fold in the bed of the Shenandoah River, as viewed in Google Earth: Josh posted his results on Facebook, and then the other Josh (Joshua Villalobos of El Paso Community College) poked around the area and found some others downstream (north): Here’s a Google Maps link to the site. Check it out!
9 October 2014
In search of Santorini’s blueschist, part 1: into the Valley of the Shadow of Ash
While in Santorini, Greece, your humble geoblogger braves a warm afternoon to search the hillsides for evidence of subduction.
3 October 2014
Friday fold: En route to Santorini over the Cyclades
A glimpse out an airplane window reveals some Cycladean geology in the Aegean Sea. Somewhere down there among the metamorphic rocks is our Friday fold… but nary a volcano in sight.
23 September 2014
Santorini: where the Hellenic arc meets the Cyclades
The geologic story of Santorini begins, with some tectonic perspective on the two major aspects of subduction recorded in the island’s rocks.
8 February 2013
Friday fold: LIDAR view of the Weverton Formation along the Blue Ridge front
Dan Doctor of the US Geological Survey contributed this week’s Friday fold. It’s a lovely view of the asymmetric folds in the Cambrian-aged Weverton Formation (part of the Chilhowee Group, a Sauk-Sea passive margin transgressive sequence), exposed on the western flank of the western limb of the Blue Ridge Anticlinorium. It’s a LIDAR image, and it’s best viewed when draped over the scenery in a Google Earth view. Here’s a …
7 December 2012
Friday fold: Pakistani Perplexity
In last week’s Friday fold, I featured this image… …which prompted commenter Lynn David to ask, What’s going on to the west side of that red/green rock cored syncline in #2? It looks like some sort of disconformity but then I looked closer (and man, does that rock redden up) and it appears that the synclinal axis suddenly gets smashed up against “something” – possibly a fault of a different …
30 November 2012
Friday folds: Google Earth screenshots
Found these lovely places over the past few weeks while searching (unsuccessfully) for Where On (Google) Earth? scenes… Click on any of them to make them bigger.
10 October 2012
Wo(G)E #357
Callan hosts the 357th installment of the popular satellite imagery / geologic search game “Where on (Google) Earth?”
9 July 2012
101 Geo-Sites You’ve Gotta See in Google Earth
Mountain Beltway reader “Earth Mama” responded to the recent geo-meme (which started here, folks!) by compiling all these visit-worthy locations in a single Google Earth KMZ file. If reading the lists from the various geobloggers didn’t whet your appetite, now you’ve got the ‘virtual globe’ option…. Hi Callan, I wanted to thank you for the geosites post–it’s obviously generated a lot of activity in the geoblogosphere, and it inspired me …
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.