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The late Holocene record of Lake Mareotis, Nile Delta, Egypt

Abstract : Lake Maryut (northwestern Nile Delta, Egypt) was a key feature of Alexandria's hinterland and economy during Greco-Roman times. Its shores accommodated major economic centers, and the lake acted as a gateway between the Nile valley and the Mediterranean. It is suggested that lake-level changes, connections with the Nile and the sea, and possible high-energy events considerably shaped the human occupation history of the Maryut. To reconstruct Lake Maryut hydrology in historical times, we used faunal remains, geochemistry (Sr isotopic signature of ostracods) and geoarcheological indicators of relative lake-level changes. The data show both a rise in Nile inputs to the basin during the first millennia BCE and CE and a lake-level rise of ca. 1.5 m during the Roman period. A high-energy deposit, inferred from reworked radiocarbon dates, may explain an enigmatic sedimentary hiatus previously attested to in Maryut's chronostratigraphy.
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Submitted on : Tuesday, April 27, 2021 - 1:31:12 PM
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Clément Flaux, Matthieu Giaime, Valérie Pichot, Nick Marriner, Mena El-Assal, et al.. The late Holocene record of Lake Mareotis, Nile Delta, Egypt. E&G Quaternary Science Journal, German Quaternary Association (DEUQUA), 2021, 70 (1), pp.93-104. ⟨10.5194/egqsj-70-93-2021⟩. ⟨hal-03209499⟩



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