Number of the records: 1
Loess and floods: High-resolution multi-proxy data of Last Glacial Maximum (LGM) slackwater deposition in the Flinders Ranges, semi-arid South Australia
- 1.0348543 - GLÚ 2011 RIV GB eng J - Journal Article
Haberlah, D. - Williams, M. A. J. - Halverson, G. - McTainsh, G. H. - Hill, S. M. - Hrstka, Tomáš - Jaime, P. - Butcher, A. R. - Glasby, P.
Loess and floods: High-resolution multi-proxy data of Last Glacial Maximum (LGM) slackwater deposition in the Flinders Ranges, semi-arid South Australia.
Quaternary Science Reviews. Roč. 29, 19/20 (2010), s. 2673-2693. ISSN 0277-3791. E-ISSN 1873-457X
Institutional research plan: CEZ:AV0Z30130516
Keywords : Namib desert * paleoclimatic implications * C-4 photosynthesis * climatic controls * atmospheric CO2 * Yellow-River * Kuiseb River * Lake Frome * sediments
Subject RIV: DB - Geology ; Mineralogy
Impact factor: 4.657, year: 2010
We report a centimetre-scale study of a section of Silts in the semi-arid Flinders Ranges of South Australia, which span the lead-up to and peak of the Last Glacial Maximum (LGM). A range of geological and mineralogical methods, carbon stable isotope geochemistry, and chronostratigraphy yielded data which are consistent with a fluctuating aeolian-fluvial interplay dominating the extended LGM environment with a greater impact on the landscape than all combined geomorphic processes since then. Aggradation and degradation of valley-fills appear to be largely controlled by fine-sediment supply from the valley slopes, replenished by wind-blown dust from upwind playa lakes and source-bordering dunefields. This study demonstrates how dust storms and flooding rains can account for 'pluvial' features previously explained by the opposing effects of reduced precipitation and evaporation in the colder more arid glacial landscape of southern Australia.
Permanent Link: http://hdl.handle.net/11104/0189060
Number of the records: 1