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enyata [817]
2 years ago
13

What evidence is preserved to indicate that a large meteorite impact occurred at the end of the Mesozoic?

Geography
1 answer:
rodikova [14]2 years ago
6 0
<span>High concentrations of iridium, of extraterrestrial origin, shocked quartz, evidence of fire, tsunami deposits, a fern spore spike, indicating colonization of disturbed landscapes by ferns, and the large Chicxulub impact structure in the Yucatan, dated to c 65 mya--about the same time as the end of the Mesozoic.</span>
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