End-Cretaceous Meteorite Hypothesis Flashcards
1
Q
Q: What is the evidence for a meteorite impact 65 million years ago?
A
A:
A global clay layer rich in iridium, a rare element abundant in meteorites.
Tektites, which are melted rock globules, found in the layer.
Shocked quartz, caused by powerful shockwaves, found in the layer.
The Chicxulub crater in the Yucatan Peninsula, dated to 65 million years ago.
