Portraits of Wildflowers

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Archive for September 10th, 2016

Volcanoes in Austin

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When most people think of Austin they don’t think of volcanoes. Nevertheless, this region was once volcanically active. Whether the sinuous brown strata in a cliff along Onion Creek in far southeast Austin in this picture from July 19 are igneous, I’m not sure, but an expanse of rock a few minutes’ walk away from this spot clearly suggests an origin as congealed flows of lava.

© 2016 Steven Schwartzman

Written by Steve Schwartzman

September 10, 2016 at 4:57 AM

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