Stable isotopic evidence for Middle Pleistocene environmental change from a loess-paleosol sequence: Kärlich, Germany

Gallant, Claire E., Candy, Ian, van den Bogaard, Paul, Silva, Barbara N. and Turner, Elaine (2014) Stable isotopic evidence for Middle Pleistocene environmental change from a loess-paleosol sequence: Kärlich, Germany Boreas, 43 (4). pp. 818-833. DOI 10.1111/bor.12065.

[img] Text
Gallant et al 2014.pdf - Published Version
Restricted to Registered users only

Download (1789Kb) | Contact

Supplementary data:

Abstract

Loess-paleosol sequences are important terrestrial archives of palaeoenvironmental change. Such sequences are rich in pedogenic carbonate, the oxygen and carbon isotopic values of which can provide important palaeoenvironmental information. Although some studies have pioneered the use of O and C isotopes in loess-paleosol sequences, they are not routinely used as palaeoclimate proxies. In this study we analysed the sedimentology, micromorphology, geochronology and isotopic geochemistry of a Middle Pleistocene loess-paleosol section, located at Kärlich, Germany. The section studied correlates with the Elsterian glacial (MIS 12) and Holsteinian interglacial (MIS 11). Embedded tephra layers yielded 40Ar/39Ar ages of 466±3 ka, 447±1 ka and 361±3 ka. The sedimentology and micromorphology of the sequence record a shift from accretionary loess accumulation (MIS 12) to prolonged pedogenesis at a stable land surface (MIS 11). Soil carbonate δ18O values record an enrichment of ∼3‰ during the accumulation of the loess, reaching peak values comparable with those found in the MIS 11 soil. The δ18O signal is interpreted as reflecting temperature, highlighting the potential of δ18O analysis of European loess soil carbonates as a means of reconstructing palaeotemperature history.

Document Type: Article
Additional Information: WOS:000342220000005
Keywords: Kärlich, Stable Isotopes, 40Ar/39Ar dating, Geoochronology
Research affiliation: OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-MUHS Magmatic and Hydrothermal Systems
Refereed: Yes
DOI etc.: 10.1111/bor.12065
ISSN: 0300-9483
Date Deposited: 01 Oct 2014 13:30
Last Modified: 06 Sep 2016 13:14
URI: http://eprints.uni-kiel.de/id/eprint/25687

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...