Other
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998e%26psl.164..317h&link_type=abstract
Earth and Planetary Science Letters, Volume 164, Issue 1-2, p. 317-333.
Other
40
Scientific paper
Several correlatable layers of sediment, rich in ice rafted grains, have been documented in the North Atlantic. The most notable within the last glacial cycle are the Heinrich layers, layers extremely rich in ice rafted detritus and generally barren of foraminifera within the North Atlantic ice rafted detritus (IRD) belt. The view of these layers is that they represent events where great armadas of icebergs were launched into the North Atlantic. The importance of the Heinrich layers lies in their connection with abrupt climate change in the North Atlantic, and perhaps globally. There is a growing number of published provenance studies of the Heinrich layers in the North Atlantic, based on a variety of methods. However, there is little overlap of methods applied to the same samples. In this contribution, we present a multi-component provenance study of Heinrich layers H1, H2, H4 and H5 from core V28-82 in the eastern North Atlantic. Our results indicate that virtually the entire inventory of terrigenous clastic detritus in Heinrich layers H2, H4 and H5 came from ancient continental sources surrounding the Labrador Sea. Although Heinrich layer H1 is similar in many respects, it appears to have some significant differences relative to the other three.
Bond Gerard C.
Broecker Wallace S.
Gwiazda R. H.
Hajdas Irena
Hemming Sidney R.
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