Crater in the sand.Researchers analyzing satellite images of th Sahara have discovered the region's largest impact crater “Meteor crater” redirects here. For the crater of that name, see Meteor Crater. In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with larger body. , a 31-kilometer-wide feature located in remote southwestern Egypt. The crater's heavily eroded rim (marked by the white dashes) rises about 230 meters above the surrounding terrain, says Eman Ghoneim Dr. Eman Ghoneim (Arabic: إيمان غنيم) is an experienced Egyptian geomorphologist with a primary focus on the application of Geographical Information Systems (GIS), Remote Sensing and the use of Hydrologic modeling in Flash flood , a physical geographer at Boston University Boston University, at Boston, Mass.; coeducational; founded 1839, chartered 1869, first baccalaureate granted 1871. It is composed of 16 schools and colleges. . The age of the crater is unknown, but the feature must be younger than 100 million years, the Years, The the seven decades of Eleanor Pargiter’s life. [Br. Lit.: Benét, 1109] See : Time age of the underlying sandstone, Ghoneim and her colleague Farouk EI-Baz announced last week. The ancient impact, probably caused by an asteroid about I km across, might be responsible for the formation of libyan desert glass, Those mysterious chunks of fused silica, first noted by explorers in the 1930s, are found scattered across a 50-by-130-km region near the crater. |
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