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Título: barringer crater
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Traducción automática:
Aerial view of Meteor Crater, Arizona. It is also called the Barringer Crater, after the mining engineer who first suggested that it was formed by a meteor impact. It is about 50, 000 years old and is about 200 meters deep and 800 meters across. 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 forms of silica created at high temperatures and pressures. In recent years the crater has been used for astronaut training & studies in planet comparison.
Crédito: Album / Science Source / Francois Gohier
Tamaño imagen: 3328 × 2235 px | 21.3 MB
Tamaño impresión: 28.2 × 18.9 cm | 1310.2 × 879.9 in (300 dpi)