The University of Southampton
University of Southampton Institutional Repository

Palaeoclimate records from OIS 8.0-5.4 recorded in loess-palaeosol sequences on the Matmata Plateau, southern Tunisia, based on mineral magnetism and new luminescence dating

Dearing, J.A., Livingstone, I.P., Bateman, M.D. and White, K. (2001) Palaeoclimate records from OIS 8.0-5.4 recorded in loess-palaeosol sequences on the Matmata Plateau, southern Tunisia, based on mineral magnetism and new luminescence dating Quaternary International, 76-77, pp. 43-56. (doi:10.1016/S1040-6182(00)00088-4).

Record type: Article

Abstract

Mineral magnetic studies of loess–palaeosol sequences on the Matmata Plateau, southern Tunisia, coupled with a new chronology based on luminescence dating, confirm the presence of at least four phases of pedogenesis during the period 100–250 ka. Inter-site correlations between the reddened fersiallitic palaeosols confirms that, despite modern gullying processes, the records are regional and repeatable. The palaeosol magnetic signal is controlled by the formation of secondary ferrimagnetic minerals, which may be easily detected by magnetic susceptibility and frequency-dependent susceptibility measurements. Comparison of the magnetic record with global proxy climate records shows a correlation with loess–palaeosol sequences in China and the marine oxygen isotope (OI) record during stages 8.0–5.4. Preliminary attempts to infer palaeoprecipitation levels from modern analogues of soil magnetism-climate associations suggests that during the periods 100–120 ka and ~ 200 ka precipitation was >400 mm a?1, compared with modern precipitation <150 mm a?1.

Full text not available from this repository.

More information

Published date: February 2001
Additional Information: The first attempt to extract magnetic-based palaeoclimate signals from N. African loess (study funded by Royal Society and led by Dearing), and believed to be the only terrestrial palaeoclimate sequence from this period in the Mediterranean region. It overcame the previous difficulties of using radiocarbon dating through use of luminescence.

Identifiers

Local EPrints ID: 46755
URI: http://eprints.soton.ac.uk/id/eprint/46755
ISSN: 1040-6182
PURE UUID: ca7cbc62-28c0-448d-9b37-faff108607d3
ORCID for J.A. Dearing: ORCID iD orcid.org/0000-0002-1466-9640

Catalogue record

Date deposited: 17 Jul 2007
Last modified: 17 Jul 2017 15:06

Export record

Altmetrics

Contributors

Author: J.A. Dearing ORCID iD
Author: I.P. Livingstone
Author: M.D. Bateman
Author: K. White

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.

×