FN Archimer Export Format
PT J
TI Meltwater flux from northern ice-sheets to the mediterranean during MIS 12
BT 
AF Azibeiro, Lucía A.
   Sierro, Francisco J.
   Capotondi, Lucilla
   Lirer, Fabrizio
   Andersen, Nils
   González-Lanchas, Alba
   Alonso-Garcia, Montserrat
   Flores, José-Abel
   Cortina, Aleix
   Grimalt, Joan O.
   Martrat, Belen
   Cacho, Isabel
AS 1:1;2:1;3:2;4:3;5:4;6:1;7:1;8:1;9:5;10:5;11:5;12:6;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;
C1 Department of Geology, University of Salamanca, 37008, Salamanca, Spain
   CNR, Istituto di Scienze Marine (ISMAR), Via Gobeti 101, 40129, Bologna, Italy
   CNR, Istituto di Scienze Marine (ISMAR), 80133, Napoli, Italy
   Leibniz-Laboratory for Radiometric Dating and Isotope Research, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
   Department of Environmental Chemistry, IDAEA-CSIC, 08034, Barcelona, Spain
   GRC Geociències Marines, Departament de Dinàmica de la Terra i de l’Oceà, Facultat de Ciències de la Terra, Universitat de Barcelona, 08028, Barcelona, Spain
C2 UNIV SALAMANCA, SPAIN
   CNR ISMAR, ITALY
   CNR ISMAR, ITALY
   UNIV KIEL CAU, GERMANY
   IDAEA CSIC, SPAIN
   UNIV BARCELONA, SPAIN
IF 4.456
TC 6
UR https://archimer.ifremer.fr/doc/00718/82989/87862.pdf
LA English
DT Article
CR MD 69 / MARFLUX / MAST 2
BO Marion Dufresne
DE ;Mediterranean;Millennial climate variability;Freshwater;Meltwater;Palaeoceanography;Marine isotope stage 12;Foraminifera;Glacial
AB Planktonic foraminifer oxygen isotopes through MIS 12 were analysed from Ocean Drilling Program Site 977 in the Alboran Sea. After the correction of the sea surface temperature (SST) effect on the δ18O composition of foraminiferal calcite, the resulting seawater δ18O (δ18Ow) was used to reconstruct variations in the δ18Ow of the Atlantic inflow into the Mediterranean. A synchronous record from the KC01B core, in the Ionian Sea, was used to evaluate changes in the oxygen isotope gradient within the Mediterranean due to hydrological variations during MIS 12. Instead of the glacial δ18Ow enrichment expected for the Mediterranean, lower values than today have been observed both in the Alboran and the Ionian seas, especially between 455 ka and the end of MIS 12 (424 ka). These negative oxygen isotope anomalies must have been caused by a flux of freshwater to the Mediterranean during MIS 12. Although the largest fraction of the freshwater anomalies entered the Mediterranean through the Atlantic inflow, especially during Heinrich stadials, the Mediterranean δ18Ow gradient allowed us to identify other sources of freshwater to the eastern basin. One of these sources was probably the meltwater generated at the southern margin of the Fennoscandian ice-sheet that entered via the Caspian and Black seas. However, the proximity of core KC01B to the Adriatic Sea points to meltwater delivered from the Alpine ice-sheet and transported through the Po river into the Mediterranean as the main cause of the Ionian Sea 18O depletions. 
PY 2021
PD SEP
SO Quaternary Science Reviews
SN 0277-3791
PU Elsevier BV
VL 268
UT 000692518500006
DI 10.1016/j.quascirev.2021.107108
ID 82989
ER

EF