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April 27, 2015

Monday Geology Picture: South African Wind Farm

South Africa is currently facing a significant shortage of electricity. Recently, there have been regular periods of “load shedding” or planned power outages. Basically, there is often not enough power to go around, so the power is purposely turned off on a rotating schedule. In the neighborhood where I live and work in Cape Town, the power is regularly turned off for two hours a day or sometimes for four or more …


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March 12, 2012

Monday Geology Picture: Listwanite Hills in the Sultanate of Oman

Today I am going to share some pictures of listwanite (also sometimes spelled listvenite, listvanite, or listwaenite), an unusual  rock type that I bet even some of the well-educated geologists who read this blog have never seen or even read about. I don’t even think there’s a wikipedia entry about listwanite. Perhaps I’ll write one after my thesis defense next month. Listwanite forms when ultramafic rocks (most commonly mantle peridotites) …


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May 28, 2011

Blast from the Past: Carbon Cycle Story

Atom Unit Report Booklet. I’m finishing up my packing this weekend, so that means it’s time for another “Blast from the Past” post. This is a story narrated by a carbon atom going through the carbon cycle. This story comes from my “Atom Unit” report booklet. Last week I shared a story called “Element Talk Show” with you from this same booklet. Just this evening I noticed that I wrote …


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