FN Archimer Export Format
PT J
TI Meltwater pulse recorded in Last Interglacial mollusk shells from Bermuda
BT 
AF WINKELSTERN, Ian Z.
   ROWE, Mark P.
   LOHMANN, Kyger C.
   DEFLIESE, William F.
   PETERSEN, Sierra V.
   BREWER, Aaron W.
AS 1:1;2:2;3:1;4:3;5:1;6:4;
FF 1:;2:;3:;4:;5:;6:;
C1 Univ Michigan, Dept Earth & Environm Sci, Ann Arbor, MI 48109 USA.
   Birkbeck Univ London, Dept Earth & Planetary Sci, London, England.
   Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA.
   Univ Washington, Dept Earth & Space Sci, Seattle, WA 98195 USA.
C2 UNIV MICHIGAN, USA
   UNIV BIRKBECK LONDON, ENGLAND
   UNIV CALIF LOS ANGELES, USA
   UNIV WASHINGTON, USA
IF 2.718
TC 9
UR https://archimer.ifremer.fr/doc/00420/53186/55022.pdf
   https://archimer.ifremer.fr/doc/00420/53186/55023.pdf
   https://archimer.ifremer.fr/doc/00420/53186/55024.xlsx
LA English
DT Article
CR IMAGES 1-MD101
BO Marion Dufresne
AB The warm climate of Bermuda today is modulated by the nearby presence of the Gulf Stream current. However, iceberg scours in the Florida Strait and the presence of ice-rafted debris in Bermuda Rise sediments indicate that, during the last deglaciation, icebergs discharged from the Laurentide Ice Sheet traveled as far south as subtropical latitudes. We present evidence that an event of similar magnitude affected the subtropics during the Last Interglacial, potentially due to melting of the Greenland Ice Sheet. Using the clumped isotope paleothermometer, we found temperatures similar to 10 degrees C colder and seawater delta O-18 values similar to 2% lower than modern in Last Interglacial Cittarium pica shells from Grape Bay, Bermuda. In contrast, Last Interglacial shells from Rocky Bay, Bermuda, record temperatures only slightly colder and seawater delta O-18 values similar to modern, likely representing more typical Last Interglacial conditions in Bermuda outside of a meltwater event. The significantly colder ocean temperatures observed in Grape Bay samples illustrate the extreme sensitivity of Bermudian climate to broad-scale ocean circulation changes. They indicate routine meltwater transport in the North Atlantic to near-equatorial latitudes, which would likely have resulted in disruption of the Atlantic Meridional Overturning Circulation. These data demonstrate that future melting of the Greenland Ice Sheet, a potential source of the Last Interglacial meltwater event, could have dramatic climate effects outside of the high latitudes. 
PY 2017
PD FEB
SO Paleoceanography
SN 0883-8305
PU Amer Geophysical Union
VL 32
IS 2
UT 000396832600004
BP 132
EP 145
DI 10.1002/2016PA003014
ID 53186
ER

EF