Figure 15-14: R I V U X G
The Barringer Crater This 1.2 km (3/4 mi) wide crater was formed by an asteroid impact about 50,000 years ago. Although not as well preserved as the young Barringer crater, almost 200 other impact craters—typically tens of kilometers across—have been identified on Earth. Few of these are more than 500 million years old, because the reshaping of Earth’s surface by erosion and by tectonic processes tends to erase craters over time.
The Barringer Crater This 1.2 km (3/4 mi) wide crater was formed by an asteroid impact about 50,000 years ago. Although not as well preserved as the young Barringer crater, almost 200 other impact craters—typically tens of kilometers across—have been identified on Earth. Few of these are more than 500 million years old, because the reshaping of Earth’s surface by erosion and by tectonic processes tends to erase craters over time.
(Meteor Crater Enterprises)