FN Archimer Export Format
PT J
TI Synchronous deglacial thermocline and deep-water ventilation in the eastern equatorial Pacific
BT 
AF UMLING, Natalie E.
   THUNELL, Robert C.
AS 1:1;2:1;
FF 1:;2:;
C1 Univ South Carolina, Sch Earth Ocean & Environm, Columbia, SC 29208 USA.
C2 UNIV SOUTH CAROLINA, USA
IN DOAJ
IF 12.353
TC 30
UR https://archimer.ifremer.fr/doc/00496/60794/64934.pdf
   https://archimer.ifremer.fr/doc/00496/60794/64935.pdf
LA English
DT Article
CR IMAGES V LEG 1-MD114
   IMAGES V LEG 4-MD114
   MD 122 / WEPAMA
   VT 90 / SOUC
BO Marion Dufresne
AB The deep ocean is most likely the primary source of the radiocarbon-depleted CO2 released to the atmosphere during the last deglaciation. While there are well-documented millennial scale Delta C-14 changes during the most recent deglaciation, most marine records lack the resolution needed to identify more rapid ventilation events. Furthermore, potential age model problems with marine Delta C-14 records may obscure our understanding of the phase relationship between inter-ocean ventilation changes. Here we reconstruct changes in deep water and thermocline radiocarbon content over the last deglaciation in the eastern equatorial Pacific (EEP) using benthic and planktonic foraminiferal C-14. Our records demonstrate that ventilation of EEP thermocline and deep waters occurred synchronously during the last deglaciation. In addition, both gradual and rapid deglacial radiocarbon changes in these Pacific records are coeval with changes in the Atlantic records. This in-phase behaviour suggests that the Southern Ocean overturning was the dominant driver of changes in the Atlantic and Pacific ventilation during deglaciation. 
PY 2017
PD JAN
SO Nature Communications
SN 2041-1723
PU Nature Publishing Group
VL 8
IS 14203
UT 000392406100001
DI 10.1038/ncomms14203
ID 60794
ER

EF