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Australian desert dune fields initiated with Pliocene–Pleistocene global climatic shift

2009; Geological Society of America; Volume: 37; Issue: 1 Linguagem: Inglês

10.1130/g25042a.1

1943-2682

Toshiyuki Fujioka, John Chappell, L.K. Fifield, Edward J. Rhodes,

Geological formations and processes

Research Article| January 01, 2009 Australian desert dune fields initiated with Pliocene–Pleistocene global climatic shift Toshiyuki Fujioka; Toshiyuki Fujioka 1Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia *Current address: Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia; E-mail: toshiyuki.fujioka@anu.edu.au. Search for other works by this author on: GSW Google Scholar John Chappell; John Chappell 1Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia Search for other works by this author on: GSW Google Scholar L. Keith Fifield; L. Keith Fifield 2Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia Search for other works by this author on: GSW Google Scholar Edward J. Rhodes Edward J. Rhodes 3Department of Environmental and Geographical Sciences, Manchester Metropolitan University, Manchester M1 5GD, UK Search for other works by this author on: GSW Google Scholar Author and Article Information Toshiyuki Fujioka *Current address: Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia; E-mail: toshiyuki.fujioka@anu.edu.au. 1Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia John Chappell 1Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia L. Keith Fifield 2Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia Edward J. Rhodes 3Department of Environmental and Geographical Sciences, Manchester Metropolitan University, Manchester M1 5GD, UK Publisher: Geological Society of America Received: 28 Apr 2008 Revision Received: 03 Sep 2008 Accepted: 15 Sep 2008 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2009 Geological Society of America Geology (2009) 37 (1): 51–54. https://doi.org/10.1130/G25042A.1 Article history Received: 28 Apr 2008 Revision Received: 03 Sep 2008 Accepted: 15 Sep 2008 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Toshiyuki Fujioka, John Chappell, L. Keith Fifield, Edward J. Rhodes; Australian desert dune fields initiated with Pliocene–Pleistocene global climatic shift. Geology 2009;; 37 (1): 51–54. doi: https://doi.org/10.1130/G25042A.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Development of continental aridity has been linked to late Cenozoic global cooling, but the evidence is indirect, based on terrestrial loess deposits and eolian silt in marine sediments, whereas direct dating of the inception of arid landforms has been frustrated by a lack of suitable methods. Here we report the first age determination of a major arid-zone dune field, based on cosmogenic 10Be and 26Al measurements of drill cores from dunes in the Simpson Desert, central Australia. Results show that the dune field began to form ca. 1 Ma, whereas dating using quartz optically stimulated luminescence indicates episodic dune building during late Quaternary ice ages. Less intense desertification began earlier; the previous cosmogenic exposure dating showed that neighboring stony deserts began to form at the onset of Quaternary ice ages 2–4 Ma. Aridity deepened and the dune field formed when ice age cycles increased their amplitude and switched their periods from 40 k.y. to 100 k.y. ca. 1 Ma. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.