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Rochechouart impact structure or Rochechouart astrobleme is an impact structure in France. Erosion has over the millions of years mostly destroyed its impact crater , the initial surface expression of the asteroid impact leaving highly deformed bedrock and fragments of the crater's floor as evidence of it.
The following tables list geological features on Earth that are known impact events as well as possible, but for which there is currently no confirming scientific evidence in the peer-reviewed literature, impact events.
Rochechouart is situated at the confluence of the rivers Grêne and Vayres on the Plateau of Limousin, about 180 m (590 ft) above sea level. It is about 9 km (5.6 mi) south of Saint-Junien , the second largest town in the department of Haute-Vienne , and 45 km (28.0 mi) west of Limoges, the largest town and capital of the department.
Impact structure is synonymous with the less commonly used term astrobleme meaning "star wound". [ 3 ] In an impact structure, the typical visible and topographic expressions of an impact crater are no longer obvious.
Less than ten thousand years old, and with a diameter of 100 m (330 ft) or more. The EID lists fewer than ten such craters, and the largest in the last 100,000 years (100 ka) is the 4.5 km (2.8 mi) Rio Cuarto crater in Argentina. [2]
Astroblème de Rochechouart-Chassenon (Rochechouart-Chassenon Astrobleme) Nouvelle-Aquitaine: Haute-Vienne, Charente: Chassenon, Chéronnac, Pressignac, Rochechouart, Videix: 2008 0,5 RNN169 Baie de l'Aiguillon (L'Aiguillon Bay) Pays de la Loire, Nouvelle-Aquitaine: Charente-Maritime, Vendée
Robert Sinclair Dietz (September 14, 1914 – May 19, 1995) was a scientist with the United States Coast and Geodetic Survey.Dietz, born in Westfield, New Jersey, [1] was a marine geologist, geophysicist and oceanographer who conducted pioneering research along with Harry Hammond Hess concerning seafloor spreading, published as early as 1960–1961.
Astrobleme, Rochechouart (France) Kamptal Geopark (Austria) Lochaber Geopark (Scotland, UK) Mecklenburg Ice-age Landscape Geopark (Germany) Meetings and activities.