FN Archimer Export Format
PT J
TI Heinrich events: Massive late pleistocene detritus layers of the North Atlantic and their global climate imprint
BT 
AF HEMMING, Sidney R.
AS 1:1,2;
FF 1:;
C1 Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA.
   Columbia Univ, Dept Earth & Environm Sci, Palisades, NY 10964 USA.
C2 UNIV COLUMBIA, USA
   UNIV COLUMBIA, USA
IF 8.667
TC 1086
UR https://archimer.ifremer.fr/doc/00224/33549/32033.pdf
LA English
DT Article
CR IMAGES 1-MD101
BO Marion Dufresne
DE ;climate;Heinrich layers;Heinrich events;ice-rafted detritus
AB Millennial climate oscillations of the glacial interval are interrupted by extreme events, the so-called Heinrich events of the North Atlantic. Their near-global footprint is a testament to coherent interactions among Earth's atmosphere, oceans, and cryosphere on millennial timescales. Heinrich detritus appears to have been derived from the region around Hudson Strait. It was deposited over approximately 500 +/- 250 years. Several mechanisms have been proposed for the origin of the layers: binge-purge cycle of the Laurentide ice sheet, jokulhlaup activity from a Hudson Bay lake, and an ice shelf buildup/collapse fed by Hudson Strait. To determine the origin of the Heinrich events, I recommend (1) further studies of the timing and duration of the events, (2) further sedimentology study near the Hudson Strait, and (3) greater spatial and temporal resolution studies of the layers as well as their precursory intervals. Studies of previous glacial intervals may also provide important constraints.
PY 2004
PD MAR
SO Reviews Of Geophysics
SN 8755-1209
PU Amer Geophysical Union
VL 42
IS 1
UT 000220441200003
BP 1
EP 43
DI 10.1029/2003RG000128
ID 33549
ER

EF