Shock metamorphism or impact metamorphism describes the effects of shock-wave related deformation and heating during impact events. The formation of similar features during explosive volcanism is generally discounted due to the lack of metamorphic effects unequivocally associated with explosions and the difficulty in reaching sufficient pressures during such an event.
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Famous quotes containing the word shock:
“Nothing can shock a brave man but dullness.”
—Henry David Thoreau (1817–1862)