Palaeokarst and rauhwacke development, mountain uplift andsubaerial sliding of tectonic sheets (northern Sierrade los Filabres, Betic Cordilleras, Spain)

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• 作者：Miguel Orozco ; José Miguel Molina ; Ana Crespo-Blanc and Francisco Manuel Alonso-Chaves
• 关键词：Betic Cordilleras ; continental deposits ; gravitational sliding ; mountain uplift ; palaeokarst structures ; rauhwackes
• 刊名：Geologie en Mijnbouw
• 出版年：1999
• 出版时间：1999
• 年：1999
• 卷：78
• 期：1
• 页码：103-117
• 全文大小：534 KB
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Structural Geology
  
• 出版者：Springer Netherlands
• ISSN：1573-9708

文摘

The rauhwackes near Serón in the northern Sierra de los Filabres (S Spain), previously considered as true tectonic breccias, are reinterpreted on the basis of sedimentological, geomorphological and geometrical evidence as subaerial or nearly subaerial sedimentary deposits. Channel fills, parallel lamination, cross-lamination, graded bedding, sedimentary clastic dykes and other sedimentary structures and features occur in the rauhwacke body. These sedimentary rocks correspond to continental deposits of alluvial and karstic origin deposited over a karstified erosional surface of Nevado–Filabride marbles. Although no fossils have been found in the rauhwackes, a Tortonian age for these rocks is suggested on the basis of structural arguments and lithostratigraphic data from the nearby Almanzora basin. The rauhwackes were buried by slabs of Alpujarride rocks that gravitationally slid over them during the uplifting of the Sierra de los Filabres.