Varves of the Dead Sea sedimentary record
- The sedimentary record of the Dead Sea provides an exceptional high-resolution archive of past climate changes in the drought-sensitive eastern Mediterranean-Levant, a key region for the development of humankind at the boundary of global climate belts. Moreover, it is the only deep hypersaline lake known to have deposited long sequences of finely laminated, annually deposited sediments (i.e. varves) of varied compositions, including aragonite, gypsum, halite and clastic sediments. Vast efforts have been made over the years to decipher the environmental information stored in these evaporitic-clastic sequences spanning from the Pleistocene Lake Amora to the Holocene Dead Sea. A general characterisation of sediment facies has been derived from exposed sediment sections, as well as from shallow- and deep-water sediment cores. During high lake stands and episodes of positive water budget, mostly during glacial times, alternating aragonite and detritus laminae (‘aad’ facies) were accumulated, whereas during low lake stands and droughts,The sedimentary record of the Dead Sea provides an exceptional high-resolution archive of past climate changes in the drought-sensitive eastern Mediterranean-Levant, a key region for the development of humankind at the boundary of global climate belts. Moreover, it is the only deep hypersaline lake known to have deposited long sequences of finely laminated, annually deposited sediments (i.e. varves) of varied compositions, including aragonite, gypsum, halite and clastic sediments. Vast efforts have been made over the years to decipher the environmental information stored in these evaporitic-clastic sequences spanning from the Pleistocene Lake Amora to the Holocene Dead Sea. A general characterisation of sediment facies has been derived from exposed sediment sections, as well as from shallow- and deep-water sediment cores. During high lake stands and episodes of positive water budget, mostly during glacial times, alternating aragonite and detritus laminae (‘aad’ facies) were accumulated, whereas during low lake stands and droughts, prevailing during interglacials, laminated detritus (‘ld’ facies) and laminated halite (‘lh’ facies) dominate the sequence. In this paper, we (i) review the three types of laminated sediments of the Dead Sea sedimentary record (‘aad’, ‘ld’ and ‘lh’ facies), (ii) discuss their modes of formation, deposition and accumulation, and their interpretation as varves, and (iii) illustrate how Dead Sea varves are utilized for palaeoclimate reconstructions and for establishing floating chronologies.…
Verfasserangaben: | Yoav Ben DorORCiD, Ina NeugebauerORCiD, Yehouda Enzel, Markus Julius SchwabGND, Rik TjallingiiORCiDGND, Yigal Erel, Achim BrauerORCiDGND |
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DOI: | https://doi.org/10.1016/j.quascirev.2019.04.011 |
ISSN: | 0277-3791 |
Titel des übergeordneten Werks (Englisch): | Quaternary science reviews : the international multidisciplinary research and review journal |
Verlag: | Elsevier |
Verlagsort: | Oxford |
Publikationstyp: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2019 |
Erscheinungsjahr: | 2019 |
Datum der Freischaltung: | 15.01.2021 |
Freies Schlagwort / Tag: | Evaporitic varves; Hypersaline lake; ICDP Dead Sea deep drilling; Lacustrine sediments; Palaeoclimate reconstruction; Varve chronologies |
Band: | 215 |
Seitenanzahl: | 12 |
Erste Seite: | 173 |
Letzte Seite: | 184 |
Fördernde Institution: | DFGGerman Research Foundation (DFG) [BR2208/13-1, BR2208/13-2]; Israel Science Foundation (ISF)Israel Science Foundation [1436/14]; Advanced School of Environmental Studies, the Hebrew University of Jerusalem; Rieger Foundation Jewish National Fund program for environmental studies; European UnionEuropean Union (EU) [706244]; German Academic Exchange Service (DAAD)Deutscher Akademischer Austausch Dienst (DAAD) |
Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Geowissenschaften |
DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften |
Peer Review: | Referiert |