caa a22 4500 477064221 CHVBK 20180405111408.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF02369010 doi (NATIONALLICENCE)springer-10.1007/BF02369010 Late Quaternary sediment dating and quantification of lateral sediment redistribution applying230Thex: a study from the eastern Atlantic sector of the Southern Ocean [Elektronische Daten] [M. Frank, A. Mangini, R. Gersonde, M. Rutgers van der Loeff, G. Kuhn] High-resolution records of the natural radionuclide230Th were measured in sediments from the eastern Atlantic sector of the Antarctic circumpolar current to obtain a detailed reconstruction of the sedimentation history of this key area for global climate change during the late Quaternary. High-resolution dating rests on the assumption that the230Thex flux to the sediments is constant. Short periods of drastically increased sediment accumulation rates (up to a factor of 8) were determined in the sediments of the Antarctic zone during the climate optima at the beginning of the Holocene and the isotope stage 5e. By comparing expected and measured accumulation rate of230Thex, lateral sediment redistribution was quantified and vertical particle rain rates originating from the surface water above were calculated. We show that lateral contributions locally were up to 6.5 times higher than the vertical particle rain rates. At other locations only 15% of the expected vertical particle rain rate were deposited. Springer-Verlag, 1996 High-resolution dating nationallicence 230Thex constant flux models nationallicence Sediment focusing nationallicence Sediment winnowing nationallicence Particle flux reconstruction nationallicence Frank M. Heidelberger Akademie der Wissenschaften, INF 366, D-69120, Heidelberg, Germany aut Mangini A. Heidelberger Akademie der Wissenschaften, INF 366, D-69120, Heidelberg, Germany aut Gersonde R. Alfred-Wegener-Institut für Polar- und Meeresforschung, Columbusstrasse, D-27568, Bremerhaven, Germany aut Rutgers van der Loeff M. Alfred-Wegener-Institut für Polar- und Meeresforschung, Columbusstrasse, D-27568, Bremerhaven, Germany aut Kuhn G. Alfred-Wegener-Institut für Polar- und Meeresforschung, Columbusstrasse, D-27568, Bremerhaven, Germany aut Geologische Rundschau Springer-Verlag 85/3(1996-09-01), 554-566 0016-7835 85:3<554 1996 85 531 https://doi.org/10.1007/BF02369010 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02369010 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Frank M. Heidelberger Akademie der Wissenschaften, INF 366, D-69120, Heidelberg, Germany aut NATIONALLICENCE 700 1- Mangini A. Heidelberger Akademie der Wissenschaften, INF 366, D-69120, Heidelberg, Germany aut NATIONALLICENCE 700 1- Gersonde R. Alfred-Wegener-Institut für Polar- und Meeresforschung, Columbusstrasse, D-27568, Bremerhaven, Germany aut NATIONALLICENCE 700 1- Rutgers van der Loeff M. Alfred-Wegener-Institut für Polar- und Meeresforschung, Columbusstrasse, D-27568, Bremerhaven, Germany aut NATIONALLICENCE 700 1- Kuhn G. Alfred-Wegener-Institut für Polar- und Meeresforschung, Columbusstrasse, D-27568, Bremerhaven, Germany aut NATIONALLICENCE 773 0- Geologische Rundschau Springer-Verlag 85/3(1996-09-01), 554-566 0016-7835 85:3<554 1996 85 531 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer