Saturday, June 6, 2009

Amygdules!

Amygdules (mineral deposits filling extrusive vesicles) in the Neoproterozoic-aged Catoctin Formation meta-basalt, Shenandoah National Park, Virginia.

Labels: basalt, blue ridge, igneous, primary structures, proterozoic

posted by Callan Bentley at 2:14 PM

Earth science observations, news, photos, teaching, & commentary by Callan Bentley

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