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Meteors, Asteroids and Comets
Meteorite impact ejecta v. volcanic deposits
10/18/11

 

Meteorite impact ejecta (left) compared with volcanic deposits (right) showing closely similar structures made of dust particles. The top two photos show accretionary lapilli in density current deposits, whereas bottom two photos show pellets that formed when dust in the atmosphere clumped together and simply fell onto the land surface. Credit: From Branney and Brown 2011 (Journal of Geology 199, 275-292

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