Core Sample (IMAGE)

University of Texas at Austin

Core Sample

Caption

A portion of the drilled cores from the rocks that filled the crater left by the asteroid impact that wiped out the dinosaurs. Scientists found melted and broken rocks such as sandstone, limestone and granite -- but no sulfur-bearing minerals, despite the area's high concentration of sulfur containing rocks. This finding suggests that the impact vaporized these rocks forming sulfate aerosols in the atmosphere, causing cooling on the global scale

Credit

International Ocean Discovery Program

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