Category: geology
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Martian Geology
This image from India’s MOM mission highlights a region with stress fractures – cracks – in Mars’ crust that can run as much as 3 miles deep. They’re called fossa, sometimes grabens, and they exist on Earth too. Yes, you are riding on a cracked surface. Have a good day. http://www.isro.gov.in/pslv-c25-mars-orbiter-mission/breathtaking-pictures-mars-colour-camera-mcc-of-india%E2%80%99s-mars-orbiter Elsewhere on Mars, there’s… Read more
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Fossil Bike Tour in the District
If you’re looking for a unique local bike tour in Washington, DC, here’s an idea. Christopher Barr developed a terrific list of locations with accessible fossils embedded in Washington’s architecture at http://dcfossils.org/index.php/ So I put together this map, which presents the locations in an order that can be followed for an educational afternoon ride around… Read more