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Terrestrial Origins and Evolution
Cottonmouth Creek waterfall over the event deposit with reworked Chicxulub impact spherules. The original Chicxulub ejecta layer was discovered in a yellow clay layer 45 cm below the base of the event deposit. The yellow clay represents a cheto smectite clay consisting of altered Chicxulub impact glass spherules. Credit: GSA
01/14/09

 



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