Fluvial environmental contexts for archaeological sites in the Upper Khabur basin (northeastern Syria) |
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| Authors: | Katleen Deckers Simone Riehl |
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| Institution: | aUniversity of Tübingen, Ältere Urgeschichte und Quartärökologie, Schloß Hohentübingen, 72070 Tübingen, Germany |
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| Abstract: | Today the eastern tributaries of the Upper Khabur run dry during the summer and the landscape is devoid of trees. This picture is misleading when we try to understand archaeological sites within their former environmental context. Interdisciplinary geomorphological, archaeobotanical and ostracod research on a sequence from the Wadi Jaghjagh indicates that relatively stable, perennial flow velocities occurred during the mid 4th to mid-3rd millennium BC. Evidence was found for a gallery forest and swamp belt along the Jaghjagh during the mid-4th millennium BC. Oak park woodland was present within the region in the 3rd millennium BC and probably up to at least the 3rd century AD. Shortly after 2500 BC, Jaghjagh stream velocities probably decreased or the stream bed had changed its location. Later deposits, possibly dating to the 5th century BC, indicate similar, rather stable flow of the Jaghjagh. More recently however, about ca. AD 900 or afterwards, a flashflood-like regime occurred, which may relate to deforestation. The Wadi Khanzir sediment archives reflect the flashy intermittent regime of this stream, like it still is today, with flashflood evidence dating to the first half of the Holocene and probably dating to approximately AD 400 or later. Along the Jarrah, topsoil was eroded and redeposited by the wadi sometime between 1300 and 600 BC. This may have been caused by the intensive resettlement program of this region around 800 BC. Between about 600 and 300 BC 1.5 m of clay was deposited on the plain. |
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| Keywords: | Fluvial geomorphology Syria Botanical remains Ostracods Geoarchaeology Upper Khabur Jaghjagh Khanzir Jarrah |
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