FN Archimer Export Format
PT J
TI Interglacial variability (MIS 5 and MIS 7) and dinoflagellate cyst assemblages in the Bay of Biscay (North Atlantic)
BT 
AF PENAUD, A
   EYNAUD, F
   TURON, J
   ZARAGOSI, S
   MARRET, F
   BOURILLET, Jean-françois
AS 1:1;2:1;3:1;4:1;5:2;6:3;
FF 1:;2:;3:;4:;5:;6:PDG-DOP-DCB-GM-LES;
C1 Univ Bordeaux 1, CNRS, UMR 5805, EPOC, F-33405 Talence, France.
   Univ Liverpool, Dept Geog, Liverpool L69 7ZT, Merseyside, England.
   IFREMER, Dept Marine Geosci, Lab Environm Sedimentaires, F-29280 Plouzane, France.
C2 UNIV BORDEAUX, FRANCE
   UNIV LIVERPOOL, UK
   IFREMER, FRANCE
SI BREST
SE PDG-DOP-DCB-GM-LES
IN WOS Ifremer jusqu'en 2018
   copubli-europe
   copubli-univ-france
IF 1.954
TC 34
TU Centre national de la recherche scientifique
   Université de Bordeaux
   École pratique des hautes études
UR https://archimer.ifremer.fr/doc/2008/publication-5020.pdf
LA English
DT Article
CR IMAGES 1-MD101
   MD 133 / SEDICAR
BO Marion Dufresne
DE ;Climatic optima;Interglacial Complexes;Marine Isotope Stages MIS 5 and 7;Celtic Armorican margin;Foraminifera;Dinoflagellate cysts
AB The interglacial periods of the late Quaternary are frequently investigated as they constitute potential analogues for our modem climate and may shed light on the key questions of natural climate variability and future developments. The aim of this work is to reconstruct the paleoenvironmental history of Marine Isotope Stages (MIS) 5 and 7 in deep-sea sediments of the northern Bay of Biscay (North East Atlantic Ocean). On the basis of a multiproxy compilation, including analysis of dinoflagellate cyst assemblages, we discuss the nature of the paleoenvironmental and paleoclimate changes that took place in this region. Recurrent successions Of Species marking the beginning and the Termination of the Interglacial Complexes (MIS 5 and MIS 7) revealed a coherent scheme of water mass migration during these key transitional periods. Moreover, our data extend knowledge about the ecology of several dinoflagellate taxa. In particular, we discuss the ecology of Spiniferites septentrionalis and note that this species can be used as a biostratigraphical tracer in North Atlantic Quaternary sediments, until a major event of iceberg calving occurred during MIS 6. dated to around 150 ka BP. The dinocyst Spinferites mirabilis appears to be an important proxy for recognizing warm intervals within Interglacial Complexes. During MIS 5e, the Last Interglacial, this species is represented by the highest percentages ever recorded in sediments from the North Atlantic region. Peak occurrence of this species during MIS 7 indicates that substage MIS 7c, the second warm interval of the Penultimate Interglacial, represents the climatic optimum during the MIS 7 Interglacial Complex.
PY 2008
PD JUN
SO Marine Micropaleontology
SN 0377-8398
PU Elsevier
VL 68
IS 1-2
UT 000259053700008
BP 136
EP 155
DI 10.1016/j.marmicro.2008.01.007
ID 5020
ER

EF