FN Archimer Export Format
PT J
TI Mg/Ca-paleothermometry in the western Mediterranean Sea on planktonic foraminifer species Globigerina bulloides: Constraints and implications
BT 
AF BOUSSETTA, Soumaya
   KALLEL, Nejib
   BASSINOT, Franck
   LABEYRIE, Laurent
   DUPLESSY, Jean-Claude
   CAILLON, Nicolas
   DEWILDE, Fabien
   REBAUBIER, Helene
AS 1:1;2:1;3:2;4:2;5:2;6:2;7:2;8:2;
FF 1:;2:;3:;4:;5:;6:;7:;8:;
C1 Univ Sfax, FSS, Lab GEOGLOB, Sfax 3028, Tunisia.
   CNRS, LSCE, CEA, UVSQ, F-91198 Gif Sur Yvette, France.
C2 UNIV SFAX, TUNISIA
   CNRS, FRANCE
IF 1.4
TC 11
UR https://archimer.ifremer.fr/doc/00139/25047/23181.pdf
LA English
DT Article
CR IMAGES V LEG 1-MD114
   IMAGES V LEG 4-MD114
BO Marion Dufresne
DE ;Mediterranean;Mg/Ca;Planktonic foraminifera;Sea surface Temperature;Salinity;Diagenesis;Vital effect
AB We generated a high-resolution SSTMg/Ca record for the surface-dwelling planktonic foraminifera Globigerina bulloides from the core MD99-2346 collected in the Gulf of Lion, and compared it to that obtained using modern analogue techniques applied to fossil foraminiferal assemblages (SSTMAT). The two temperature records display similar patterns during the last 28,000 years but the SSTMg/Ca estimates are several degrees warmer (similar to+4 degrees C) than SSTMAT. The temperature shift between SSTMg/Ca and SSTMAT remained relatively constant over time. This seems to exclude a bias on the Mg/Ca record associated with salinity or secondary Mg-rich calcite encrustation on the foraminiferal tests during early diagenesis. Therefore, anomalously high Mg/Ca suggests either: (1) the empirical equation for G. bulloides of Elderfield and Ganssen (2000) is incorrect; or (2) there is a specific Mediterranean genotypes of G. bulloides for which a specific Mg/Ca-temperature calibration is needed. (c) 2012 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
PY 2012
PD MAY
SO Comptes Rendus Geoscience
SN 1631-0713
PU Elsevier France-editions Scientifiques Medicales Elsevier
VL 344
IS 5
UT 000305930200001
BP 267
EP 276
DI 10.1016/j.crte.2012.02.001
ID 25047
ER

EF