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(Article of periodic en Anglais - 2014)

Document title

A geochemical approach on reconstructing Upper Pleistocene environmental conditions from wadi deposits – an example from the Wadi Sabra (Jordan)

published at : Climatic signals in geomorphological systems

Authors(s) and Affiliation(s)

BERTRAMS M. (1) ; PROTZE J. (1) ; ECKMEIER E. (2) ; LEHMKUHL F. (1) ;
(1) Dept. of Geography, RWTH Univ., Aachen, ALLEMAGNE
(2) Inst. of Crop Science and Resource Conservation (INRES), Soil Science and Soil Ecology, Univ., Bonn, ALLEMAGNE

Abstract

Stratified Upper Pleistocene sediment sequences have been geochemically investigated in the arid environment of the Wadi Sabra (Southern Jordan). A combined approach of CNS analysis, carbonate fractionation, electrical conductivity, and colour spectrophotometry supported by selective XRF scanning and chemical iron extraction was used to elaborate the nature and characteristics of various fine grained calcrete horizons. Although a detailed palaeoenvironmental interpretation of these deposits was complicated by an inhomogeneous distribution of precipitated solutes, a diversity of source materials, and potential sedimentation gaps, the results indicate that most of the fine grained deposits represent fossil and relict palaeosol horizons. Consequently, the study area might have experienced repeated phases of landscape stability and initial soil development during the latest phase of the Upper Pleistocene before a change in hydrological conditions initiated a distinctive erosional period that prevailed during most of the Holocene until modern times

Source

Thematical fascicle

published at : Zeitschrift für Geomorphologie / ISSN 0372-8854 / CODEN ZGMPAG

Editor : Gebruder Borntraeger, Stuttgart - ALLEMAGNE (1925)

Millesime : 2014, vol. 58, no 1 [pp. 51-80]

Bibliographic references : 92 ref.

Collation : fig., tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 8829

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1127/0372-8854/2013/S-00156

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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