The University of Southampton
University of Southampton Institutional Repository

Increased input of circumpolar deep water-borne detritus to the glacial SE Atlantic Ocean

Record type: Article

Analysis of radiogenic isotopes in marine sediments can provide useful information on the provenance and transport of detrital material, directly relevant to paleoceanographic investigations. Here we show that the detrital Nd isotopic composition of recent SE Atlantic marine sediments matches the complex modern-day hydrography. In these same cores, glacial-interglacial isotopic variations are consistent with previous investigations (using different paleoceanographic proxies), which have shown that the relative influence of North Atlantic Deep Water (NADW) into the South Atlantic was reduced during glacial periods. In a novel departure, however, we also calculate the mass accumulation rates of terrigenous material delivered by each of Circumpolar Deep Water (CDW) and NADW to demonstrate that the accumulation of detritus delivered by CDW was enhanced significantly in the glacial South Atlantic. This enhanced transport flux could be explained by an increased flow of CDW into the glacial South Atlantic and/or an increased concentration of suspended terrigenous material transported by glacial CDW.

Full text not available from this repository.

Citation

Bayon, G., German, C.R., Nesbitt, R.W., Bertrand, P. and Schneider, R.R. (2003) Increased input of circumpolar deep water-borne detritus to the glacial SE Atlantic Ocean Geochemistry, Geophysics, Geosystems, 4, (3), art. 01025. (doi:10.1029/2002GC000371).

More information

Published date: 2003
Keywords: Neodymium isotopes, detrital fractions, South Atlantic, deep water circulation, IMAGES.

Identifiers

Local EPrints ID: 1304
URI: http://eprints.soton.ac.uk/id/eprint/1304
ISSN: 1525-2027
PURE UUID: 45c136c0-79fd-4834-95de-56e13a3ed593

Catalogue record

Date deposited: 23 Apr 2004
Last modified: 17 Jul 2017 17:17

Export record

Altmetrics

Contributors

Author: G. Bayon
Author: C.R. German
Author: R.W. Nesbitt
Author: P. Bertrand
Author: R.R. Schneider

University divisions


Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×