Meteor Crater,Arizona
Numéro d’image : 12022567
| Arizona meteor crater. Sometimes called the Barringer Crater,after the mining engineer who (in 1903) became convinced that the crater was created by meteor impact,it is believed to be about 50,000 years old. Several attempts to mine the iron-rich material of the meteor were made before a visitor center was built in the 1960's. Two new minerals - coesite and stishovite - were identified here,both are high-pressure forms of silica. In recent years the crater has been used for astronaut training & studies in planet comparison. The crater is in northeastern Arizona,near Winslow,and is about 200 meters (600 feet) deep and 800 meters (1/2 mile) across | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Koch, Paolo |
| Taille de l’image : | 3378 px × 2235 px |
| Model Release : | Non requis |
| Restrictions : |
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