FN Archimer Export Format
PT J
TI Catastrophic ice shelf breakup as the source of Heinrich event icebergs
BT 
AF HULBE, CL
   MACAYEAL, DR
   DENTON, GH
   KLEMAN, J
   LOWELL, TV
AS 1:1;2:2;3:3,4;4:5;5:6;
FF 1:;2:;3:;4:;5:;
C1 Portland State Univ, Dept Geol, Portland, OR 97207 USA.
   Univ Chicago, Dept Geophys Sci, Chicago, IL 60637 USA.
   Univ Maine, Inst Quaternary & Climate Studies, Orono, ME 04469 USA.
   Univ Maine, Dept Geol Sci, Orono, ME 04469 USA.
   Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden.
   Univ Cincinnati, Dept Geol, Cincinnati, OH 45221 USA.
C2 UNIV PORTLAND STATE, USA
   UNIV CHICAGO, USA
   UNIV MAINE US, USA
   UNIV MAINE US, USA
   UNIV STOCKHOLM, SWEDEN
   UNIV CINCINNATI, USA
IF 3.018
TC 128
UR https://archimer.ifremer.fr/doc/00228/33921/32219.pdf
LA English
DT Article
CR IMAGES 1-MD101
BO Marion Dufresne
DE ;Heinrich events;ice shelf disintegration
AB Heinrich layers of the glacial North Atlantic record abrupt widespread iceberg rafting of detrital carbonate and other lithic material at the extreme-cold culminations of Bond climate cycles. Both internal (glaciologic) and external ( climate) forcings have been proposed. Here we suggest an explanation for the iceberg release that encompasses external climate forcing on the basis of a new glaciological process recently witnessed along the Antarctic Peninsula: rapid disintegrations of fringing ice shelves induced by climate-controlled meltwater infilling of surface crevasses. We postulate that peripheral ice shelves, formed along the eastern Canadian seaboard during extreme cold conditions, would be vulnerable to sudden climate-driven disintegration during any climate amelioration. Ice shelf disintegration then would be the source of Heinrich event icebergs.
PY 2004
PD JAN
SO Paleoceanography
SN 0883-8305
PU Amer Geophysical Union
VL 19
IS PA1004
UT 000188673700002
BP 1
EP 15
DI 10.1029/2003PA000890
ID 33921
ER

EF