Ordovician Impact Craters - Pilot Crater, Rock ELM Disturbance, Ames Crater, Lockne Crater, Neugrund Crater, Kardla Crater, Tvaren, Granby Crater (Paperback)

Chapters: Pilot Crater, Rock Elm Disturbance, Ames Crater, Lockne Crater, Neugrund Crater, Kardla Crater, Tvaren, Granby Crater. Source: Wikipedia. Pages: 23. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: Ames crater is a meteorite crater in Major County, Oklahoma, United States. Ames Crater is 10 miles (16 km) in diameter and the age is estimated to be 470 30 million years (Ordovician). The crater is not exposed at the surface. ...More: http: //booksllc.net/?id=780414