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Evolution de la région littorale du Makran pakistanais à l'Holocène

1991; Volume: 17; Issue: 1 Linguagem: Inglês

10.3406/paleo.1991.4536

1957-701X

Paul Sanlaville, R. Besenval, Jacques Évin, Abel Prieur,

Maritime and Coastal Archaeology

Coastal Makran is a subduction zone where the Indian Ocean plate moves northward under the continental crust. The thick sediments deposited in a big fore-arc sedimentary prism are strongly folded and uplifted. According to 14C malacofauna datings, the coast has prograded more than 10 km near Gwadar and Ormara and 20 to 25 km in the Kalmat plain and the Holocene ancient shorelines have been uplifted up to 10 to 15 m since the postglacial maximum. In the Pasni area, where numerous traces of occupation have been found, we can demonstrate the complex Holocene evolution of the area and its progressive extension to the south, marked by series of beaches or lagoon-floors.