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2 April 2018

Monday Geology Picture: Newcastle Coal

During my recent trip to Australia, I was able to pick a piece of coal off of the ground — something that I’ve never done before. I was in Newcastle, a coal mining region, for a conference. One evening I went for a walk along the beach, where coal seams are visible in outcrop. The picture above shows a piece of coal that I picked up off of the beach …


27 April 2017

Identifying logical fallacies and scientific misdirection in a CO2 video

A quick exercise in deconstructing the argument of a “elevated CO2 is good” video on YouTube by identifying its logical fallacies. Pull up a chair, grab a bowl of popcorn, and join us in the critique!


21 April 2017

Friday (coal)d

Often I feature a fold photo here on Friday, but today I give you a folded coal, so therefore a “coald” – this is from the Pennsylvanian Conemaugh Formation on the Alleghany Plateau in West Virginia, near Bismarck. Photo by Sebastian Andres Kaempfe Droguett.


7 November 2016

Coastal colluvium + coal contest in context

Here’s the answer to the contest: This is an outcrop on the beach at Funzie Bay, Fetlar, Shetland, U.K. The modern beach sediment is the lightest-colored, rounded cobbles at both the top and bottom of the photo. Poking out in between is a layer of light-gray colluvium (angular fragments) overlain by dark peat, now perhaps approaching lignite. Because peat in Shetland cloaks the hillsides but is unlikely to grow a …


10 September 2016

Peat slide!

Not only does it turn out that peat grows on hill tops, not just valley bottoms, but it can slough off and create “peat slides” too!


2 May 2016

3D models to spin and twist

More 3D models: digital facsimiles of real rock samples. Check them out and explore! Clinker from the Powder River Basin, Wyoming: [sketchfab id=”afb351be49f04c8eab1acc29a8a2bcfb” start=”0″ spin=”” controls=”0″] Ripple marks from the Rose Hill Formation, West Virginia: [sketchfab id=”6b56924ee2f84dd2821c4cb30e4869f9″ start=”0″ spin=”” controls=”0″] Meta-komatiite from the Red Lake Greenstone Belt, northern Ontario, Canada: [sketchfab id=”53dc4d161c974d7b86f70639062551e0″ start=”0″ spin=”” controls=”0″]