What Formed This Crater?
Volcanoes surround the area around Flagstaff, Arizona. A large crater lies about 25 miles away. In the past, some scientists thought the crater was an extinct volcano. Others thought it was created by a meteorite impact.
What Created Barringer Crater?
- The crater is on the Colorado Plateau in the same flat-lying sedimentary rock layers that the Grand Canyon is carved into.
- Around the rim, the rock layers are overturned.
- Coesite and stichovite are minerals that have the same composition as quartz. They have very different structures. These minerals are found at Meteor Crater.
- Far away from the crater geologists found limestone and sandstone debris.
With the links below, learn more about Barringer Crater, Arizona. Then answer the following questions.
- Meteor Crater Experience the Impact! (video) http://www.meteorcrater.com/; Fun Science (text): http://www.meteorcrater.com/Fun-Science
- Marvin Carter, Meteor Crater: https://www.youtube.com/watch?v=Dcu-A1hotds Meteor Crater
- What would you look for to see that the rock layers outside the crater are overturned?
- What evidence did the scientists find to indicate that the crater was formed by a meteorite impact?
- What is the composition of the meteorite that created the crater? Which of Earth’s layers has a similar composition?
- What was the history of the meteor before it hit Arizona?
- Why did Barringer conclude that the meteor came in at an angle from the northeast?