Day #45 Outcrop: Quaternary Ripplemarks

In the eastern portion of Badlands National Park, while watching out for rattlesnakes my eye was caught instead by this lovely little dry stream bed with some of the most beautiful asymmetric current ripplemarks I’ve ever seen (and even some mudcracks, to boot). I would’ve loved to have been able to lithify this sample and bring it back to the lab for teaching purposes, but alas, photos were all I was able to bring back…

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Dry Streambed

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Asymmetric Current Ripplemarks

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Asymmetric Ripplemarks (and Mudcracks) – Flow Direction Was Right to Left

Happy Valentines Day!

Explore this and all of my 2010 Deskcrops and Outcrops in Google Earth!

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