FN Archimer Export Format
PT J
TI Updated calibration of the clumped isotope thermometer in planktonic and benthic foraminifera
BT 
AF PERAL, Marion
   DAERON, Mathieu
   BLAMART, Dominique
   BASSINOT, Franck
   DEWILDE, Fabien
   SMIALKOWSKI, Nicolas
   ISGUDER, Gulay
   BONNIN, Jerome
   JORISSEN, Frans
   KISSEL, Catherine
   MICHEL, Elisabeth
   VAZQUEZ RIVEIROS, Natalia
   WAELBROECK, Claire
AS 1:1;2:1;3:1;4:1;5:1;6:1;7:1;8:2;9:3;10:1;11:1;12:1,4;13:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:PDG-REM-GM-LGS;13:;
C1 Univ Paris Saclay, CEA CNRS UVSQ, LSCE IPSL, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France.
   Univ Bordeaux, CNRS, EPOC, UMR 5805, Allee Geoffroy St Hilaire, F-33615 Pessac, France.
   Univ Angers, UMR CNRS LPG BIAF Bioindicateurs Actuels & Fossil, 2 Blvd Lavoisier, F-49045 Angers, France.
   IFREMER, Lab Geodynam & Enregistrement Sedimentaire, F-29280 Plouzane, France.
C2 UNIV PARIS SACLAY, FRANCE
   UNIV BORDEAUX, FRANCE
   UNIV ANGERS, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-REM-GM-LGS
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 4.258
TC 56
UR https://archimer.ifremer.fr/doc/00450/56134/57676.pdf
   https://archimer.ifremer.fr/doc/00450/56134/58342.csv
   https://archimer.ifremer.fr/doc/00450/56134/58343.csv
   https://archimer.ifremer.fr/doc/00450/56134/58344.csv
   https://archimer.ifremer.fr/doc/00450/56134/58345.csv
LA English
DT Article
DE ;Carbonate clumped isotopes;Foraminifera;Paleothermometry
AB Accurate reconstruction of past ocean temperatures is of critical importance to paleoclimatology. Carbonate clumped isotope thermometry (“Δ47”) is a relatively recent technique based on the strong relationship between calcification temperature and the statistical excess of 13C-18O bonds in carbonates. Its application to foraminifera holds great scientific potential, particularly because Δ47 paleotemperature reconstructions do not require assumptions regarding the 18O composition of seawater. However there are still relatively few published observations investigating the potential influence of parameters such as salinity or foraminiferal size and species. We present a new calibration data set based on 234 replicate analyses of 9 planktonic and 2 benthic species of foraminifera collected from recent core-top sediments, with calcification temperatures ranging from -2 to 25 °C. We observe a strong relationship between Δ47 values and independent, oxygen-18 estimates of calcification temperatures: Δ47 = 41.63 x 103 / T2 + 0.2056 The formal precision of this regression (±0.7-1.0 °C at 95 % confidence level) is much smaller than typical analytical errors. Our observations confirm the absence of significant species-specific biases or salinity effects. We also investigate potential foraminifer size effects between 200 and > 560 μm in 6 species, and conclude that all size fractions from a given core-top location and species display statistically undistinguishable Δ47 values. These findings provide a robust foundation for future inter-laboratories comparisons and paleoceanographic applications. 
PY 2018
PD OCT
SO Geochimica Et Cosmochimica Acta
SN 0016-7037
PU Pergamon-elsevier Science Ltd
VL 239
UT 000445036400001
BP 1
EP 16
DI 10.1016/j.gca.2018.07.016
ID 56134
ER

EF