AMS radiocarbon dating in the study of arid environments: Examples from Lake Eyre, South Australia

Gillespie, Richard; Magee, John; Luly, Jon; Sparks, R. J.; Wallace, G.

doi:10.1016/0031-0182(91)90052-s

Cited by 39 publications

(23 citation statements)

References 6 publications

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“…The climatic variations were associated with an inferred change to vegetation with greater canopy coverage. The intensity of the Australian summer monsoon was enhanced through the early to midHolocene Wyrwoll and Miller, 2001) and reduced during the late Holocene (Nanson et al, 1991;Nott and Price, 1994;van der Kaars and De Deckker, 2002), consistent with the persistence of permanent lakes between 11 ka and 4 ka (Gillespie et al, 1991), and probably as a result of higher sea-surface temperatures (van der Kaars and De Deckker, 2002). Warmer conditions during the mid-Holocene were also inferred from a change in the nature of rainforest in tropical latitudes (Pickett et al, 2004).…”

Section: The Holocenementioning

confidence: 78%

Time‐slice analysis of the Australian summer monsoon during the late Quaternary using the Fast Ocean Atmosphere Model

Marshall

Lynch

2006

J Quaternary Science

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Time-slice analysis of the Australian summer monsoon during the late Quaternary using the Fast Ocean Atmosphere Model.ABSTRACT: We use the Fast Ocean Atmosphere Model (FOAM) to investigate the variation in the Australian summer monsoon over the last 55 000 years. A synthesis of palaeoenvironmental observations is used to constrain the model for six time slices: 55, 35, 21, 11, 6 and 0 ka. Both inter-hemispheric forcing and the seasonal timing of local insolation changes play key, and interacting, roles on the evolution and intensity of the monsoon.During the onset to the monsoon, a heat low develops to the west of Australia over the Indian Ocean in all time slices, but with varying strengths. Divergent outflow from Asia converges with the cyclonic flow to bring increased rainfall to northern Australia and the maritime continent. The relative importance of a low pressure 'pull' and the high pressure 'push' varies according to the strength of the pressure anomalies. Only in the middle Holocene is the low pressure 'pull' the dominant forcing mechanism. At 21 ka, the climate shift to colder mean temperatures determines the large-scale dynamics of the monsoon.The general picture that emerges from these results is consistent with available palaeodata but highlights the importance of a broad regional perspective to ascribe the driving mechanisms at different times.

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Section: The Holocenementioning

confidence: 78%

Time‐slice analysis of the Australian summer monsoon during the late Quaternary using the Fast Ocean Atmosphere Model

Marshall

Lynch

2006

J Quaternary Science

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“…And the only shorelines discovered around Lakes Gregory, Blanche, Callabonna and Frome, other than the deposit at +18 m AHD, are close to playa level at 2^5 m AHD and are believed to be Holocene (Nanson et al, 1998). These low-level ¢llings probably resulted from either minor enhancement of the monsoon in the early Holocene or from extreme £ood events of the modern ephemeral system, as demonstrated at Lake Eyre (Dulhunty, 1975;Gillespie et al, 1991;Magee and Miller, 1998). En-hanced runo¡ in the local Flinders Ranges catchments may also have contributed to these minor Holocene £oodings.…”

Section: Paleo-lake ¢Llingsmentioning

confidence: 95%

A GIS-based reconstruction of late Quaternary paleohydrology: Lake Eyre, arid central Australia

DeVogel

Magee

Manley

et al. 2004

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…The potential problems of dating pollen samples need to be assessed, and the data presented here points to one of them, contamination by modern or younger fine organic material. Another, contamination by derived older charcoal or uncharred organics, is more likely to be significant in lacustrine sites dominated by minerogenic sedimentation, especially during periods of instability (Gillespie et al 1991).…”

Section: Reliability Of Macrofossil Versus Pollen Preparationsmentioning

confidence: 99%

“…However, there has been a trend towards dating lake, swamp and playa sequences using pollen preparations or bulk sediment dates on relatively inorganic materials (e.g. Gillespie et al 1991;Magee 1995;Chester and Prior 2004;Vandergoes et al 2005;Cupper 2006;). In the latter case, the carbon being dated in organic poor sediments is likely to be effectively similar to a pollen preparation concentrate.…”

Section: Introductionmentioning

confidence: 99%

Altered Ecologies: Fire, climate and human influence on terrestrial landscapes: Terra Australis 32

Haberle¹,

Stevenson²,

Prebble³

2010

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terra australis 32Terra Australis reports the results of archaeological and related research within the south and east of Asia, though mainly Australia, New Guinea and island Melanesia -lands that remained terra australis incognita to generations of prehistorians. Its subject is the settlement of the diverse environments in this isolated quarter of the globe by peoples who have maintained their discrete and traditional ways of life into the recent recorded or remembered past and at times into the observable present.Since the beginning of the series, the basic colour on the spine and cover has distinguished the regional distribution of topics as follows: ochre for Australia, green for New Guinea, red for South-East Asia and blue for the Pacific Islands. From 2001, issues with a gold spine will include conference proceedings, edited papers and monographs which in topic or desired format do not fit easily within the original arrangements. All volumes are numbered within the same series. Copyright of the text remains with the contributors/authors, 2009. This book is copyright in all countries subscribing to the Berne convention. Apart from any fair dealing for the purpose of private study, research, criticism or review, as permitted under the Copyright Act, no part may be reproduced by any process without written permission. Inquiries should be made to the publisher. Among saltbush greyer than seaweed we boardwalk the yeasting waves of the old golden-perch pond. List of volumes in Terra AustralisRabbit dung dots a lake bottom dry since their coming -only once, last century, after seven inches of rain a farmer had to rescue his sheep by boat.The roo bounces down-slope, a brown branch crackling.The professor's eye, noting the local runoff and what the westerlies do, observes seas that rush in and out of a continent's middle, salt lakes spreading and emptying, hills pimpling up and down with cartoon-like speed, or gullying themselves into extinction, rainforests and deserts zipping back and forth like Tom and Jerry. A human mouse plague swiftly swarms, perhaps soon gone.Impermanent planet. Impermanent surface. All under air and water. The lunette is a wave, a dumper of sand, a collapsing tower in the mad rabbit years when its top blew off and old bones winked through, with a vault's worth of fine stone cores.Once so simply mislaid in sand, now so obligingly sluiced out to the un-subincised world that smiles at stone knives. terra australis 32Altered Ecologies: Fire, climate and human influence on terrestrial landscapes v You might as well offer your table knife to a carpenter.Cane grass and the Dreamtime's stone fight the eroding rivulets together. In today's rare downpour each lost core, or blunted scraper crowns some tiny eroding hillock, plops its anchor in the dissolving silts.The bettong whose skin took off the stone tool's edge has vanished -sacrifice to future fertility.Through the softening soil Homo sapiens's skeleton bumps up like a carp's back.Waits for the wind to shave it off in pieces.A D-section and a ti...

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AMS radiocarbon dating in the study of arid environments: Examples from Lake Eyre, South Australia

Cited by 39 publications

References 6 publications

Time‐slice analysis of the Australian summer monsoon during the late Quaternary using the Fast Ocean Atmosphere Model

Time‐slice analysis of the Australian summer monsoon during the late Quaternary using the Fast Ocean Atmosphere Model

A GIS-based reconstruction of late Quaternary paleohydrology: Lake Eyre, arid central Australia

Altered Ecologies: Fire, climate and human influence on terrestrial landscapes: Terra Australis 32

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