Late-Holocene climatic variability indicated by three natural archives in arid southern Australia

Gliganic, Luke A., Cohen, Timothy J., May, Jan-Hendrik, Jansen, John D., Nanson, Gerald C., Dosseto, Anthony, Larsen, Josh R. and Aubert, Maxime (2014) Late-Holocene climatic variability indicated by three natural archives in arid southern Australia. Holocene, 24 1: 104-117. doi:10.1177/0959683613515732


Author Gliganic, Luke A.
Cohen, Timothy J.
May, Jan-Hendrik
Jansen, John D.
Nanson, Gerald C.
Dosseto, Anthony
Larsen, Josh R.
Aubert, Maxime
Title Late-Holocene climatic variability indicated by three natural archives in arid southern Australia
Journal name Holocene   Check publisher's open access policy
ISSN 0959-6836
1477-0911
Publication date 2014-01-01
Year available 2014
Sub-type Article (original research)
DOI 10.1177/0959683613515732
Open Access Status Not Open Access
Volume 24
Issue 1
Start page 104
End page 117
Total pages 14
Place of publication London, United Kingdom
Publisher Sage Publications Ltd
Language eng
Subject 1904 Performing Arts and Creative Writing
2306 Global and Planetary Change
2303 Ecology
1911 Palaeontology
1204 Engineering Design
Abstract Three terrestrial climate proxies are used to investigate the evolution of Holocene palaeoenvironments in southern central Australia, all of which present a coherent record of palaeohydrology. Single-grain optically stimulated luminescence from sediments supplemented by 14C from charcoal and lacustrine shells was obtained to date shoreline deposits (Lake Callabonna) and the adjacent Mt Chambers Creek alluvial fan. Our findings are complemented by a U/Th-based record of speleothem growth in the Mt Chambers Creek catchment, which we interpret to reflect increased precipitation. Together, these archives shed light on the timing of, and possible sources of water for, Holocene pluvial intervals. We identified several phases of elevated lake levels dated at ~5.8-5.2, 4.5, 3.5-2.7 and 1 kyr, most of which correspond to fluvial activity resulting from increased precipitation in the adjacent ranges. The enhanced hydrology during phases of the late Holocene likely increased the reliability of resources for regional human populations during a time of reduced winter rainfall. When considered within the framework of the current understanding of Holocene palaeoclimate in central Australia, our data suggest that the pattern of landscape response was broadly synchronous with larger scale climatic variability and punctuated by pluvial periods greater than today.
Keyword Archaeology
Arid Australia
Environmental variability
Flinders Ranges
Lake Callabonna
late Holocene
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Geography, Planning and Environmental Management Publications
Official 2015 Collection
 
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