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(Article of periodic en Anglais - 2012)

Document title

Arid geomorphology : Changing perspectives on timescales of change

Authors(s) and Affiliation(s)

TOOTH S. (1) ;
(1) Univ., Aberystwyth, ROYAUME-UNI

Abstract

This paper particularly highlights how applications of geochronology (e.g. cosmogenic isotope analysis, luminescence dating, and radiocarbon dating) are challenging or revolutionizing understanding of the timing and rates of arid geomorphological change. Four case studies from "iconic" arid landscapes illustrate changes over different timescales : (1) canyons of the Colorado Plateau region, southwest USA); (2) aeolian dunefields in central Australia; (3) palaeolakes in the Kalahari, central southern Africa; and (4) alluvial and bedrock-controlled rivers in the southwest USA. Other developments across the suite of geochronological techniques are also contributing to improved understanding of arid landscape dynamics and the links with late Cenozoic environmental changes, biological (including hominin) evolution and cultural developments, but many outstanding issues remain

Source

Article of periodic

published at : Progress in physical geography / ISSN 0309-1333 / CODEN PPGEEC

Editor : Sage Publications, London - ROYAUME-UNI (1977)

Millesime : 2012, vol. 36, no2 [pp. 262-284]

Bibliographic references : 6 p.

Collation : 1 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 14648 A

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1177/0309133311417943

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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