Aeolian-fluvial interaction and climate change: source-bordering dune development over the past ~100 ka on Cooper Creek, central Australia

Maroulis, Jerry C. and Nanson, Gerald C. and Price, David M. and Pietsch, Tim (2007) Aeolian-fluvial interaction and climate change: source-bordering dune development over the past ~100 ka on Cooper Creek, central Australia. Quaternary Science Reviews, 26 (3-4). pp. 386-404. ISSN 0277-3791

Abstract

This study provides an interpretation of interrelated Quaternary fluvial and aeolian activity related to climate change on Cooper Creek in the Lake Eyre Basin in southwestern Queensland, central Australia. The extensive muddy floodplain is characterised by buried sandy palaeochannels now almost entirely invisible but stratigraphically connected to source-bordering dunes that emerge as distinctive sandy islands through the floodplain surface. Luminescence dating has identified pronounced periods of fluvial activity represented by abundant sandy alluvium from Marine Isotope Stages (MIS) 8–3. While all these sandy fluvial episodes on Cooper Creek were much more powerful than anything subsequent, they appear to be ranked in order of declining activity. MIS 8–6 saw reworking of almost the entire floodplain whereas subsequent phases of reworking were far less extensive. Source-bordering dunes were derived from active sandy channels in late MIS 5 (85–80 ka) and mid MIS 3 (50–40 ka). After


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Depositing User: Assoc Prof Jerry Maroulis
Faculty / Department / School: Historic - Faculty of Education
Date Deposited: 11 Oct 2007 01:13
Last Modified: 26 May 2014 01:24
Uncontrolled Keywords: Cooper Creek; climate change; quaternary chronology; floodplain; source-bordering dunes; stratigraphy
Fields of Research (FOR2008): 04 Earth Sciences > 0406 Physical Geography and Environmental Geoscience > 040605 Palaeoclimatology
04 Earth Sciences > 0406 Physical Geography and Environmental Geoscience > 040606 Quaternary Environments
04 Earth Sciences > 0406 Physical Geography and Environmental Geoscience > 040601 Geomorphology and Regolith and Landscape Evolution
Socio-Economic Objective (SEO2008): D Environment > 96 Environment > 9614 Soils > 961406 Sparseland, Permanent Grassland and Arid Zone Soils
Identification Number or DOI: doi: 10.1016/j.quascirev.2006.08.010
URI: http://eprints.usq.edu.au/id/eprint/2716

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