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10 January 2011
Call for posts: AW#30, the Bake Sale
Recent discussion of the geologically incorrect cake t-shirt at Threadless (earlier take-down here) and the actual baked equivalent have inspired me to issue a call for Accretionary Wedge #30: Let’s have a Bake Sale! I hereby challenge my fellow geobloggers (and any newbies who want to participate) to explore the interconnections between geology and food. This can take any form you want, but I’m really hoping for some edible, geologically …
Mystery rock with radiating crystals
A mystery rock is presented. Can you puzzle out what this beautiful thing is, and how it formed?

Callan Bentley is an assistant professor of geology at Northern Virginia Community College in Annandale, Virginia. He is particularly interested in structural geology and the evolution of the Appalachian mountain belt. Callan draws cartoons and writes for EARTH magazine. He lives in Washington, D.C.








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