Friday, March 25, 2016

How rocks shaped Civil War outcomes

A century and a half ago, the Civil War rocked America. But as it turns out, the war itself — in particular, the pivotal battle of Gettysburg in July 1863 — was influenced by rocks. A just-published article in Geosphere, the journal of the Geological Society of America, details how rock formations helped to determine the outcome at Gettysburg. • Article

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