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2 June 2016
Flood deposits of Glacial Lake Missoula outburst floods
Two weeks ago, I went on an awesome, informal field trip to eastern Washington State to visit the Channeled Scablands for the first time. My collegue Bill Richards of North Idaho College picked me up in Spokane and drove me halfway across Washington and back to Moscow, Idaho, over the course of a day. This is a region of the country where a glacier-dammed valley filled up with water (Glacial …
22 September 2014
Sea arch in pyroclastic deposits, Santorini, Greece
A series of blog posts on the geology of Santorini and Athens, Greece begins with a look at a sea arch on the south shore of Thera.
6 March 2012
Some views from the airplane, over southern Wyoming (first two photos) and north-central Nevada (last four), last Saturday morning… A canyon: …and zooming in to the middle area of the previous photo: Strata upwarped into a structural dome (that has been “planed off” to be topographically horizontal, revealing a bull’s-eye-shaped outcrop pattern, then differentially weathered and highlighted by snow: Salt flat (playa lake + playa) in the Basin & Range …
17 January 2012
The ventifacts of Rooiels
Site of the mystery photo I posted over the weekend, the beach at Rooiels (“red grass” in Afrikaans), South Africa, is a lovely place… Located on the western side of False Bay a tad north of Cape Hangklip, Rooiels is somewhat famous in my mind because the Guru of Gigapan, Illah Nourbakhsh, spoke glowingly of it at the November 2010 Gigapixel Imaging for Science conference in Pittsburgh. When I finally …
4 August 2011
Rills for thrills
Regularly-spaced erosional rills on tailings/road fill at a uranium mining operation in central Wyoming.