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Late Quaternary cyclic aridity in tropical Australia

De Deckker, Patrick

Description

During the numerous Quaternary sea level fluctuations, the vast Gulf of Carpentaria, in northern Australia, was more often a large lacustrine basin than a shallow sea. Recovery of aeolian quartz particles in a core spanning the last 40,000 calibrated years of sedimentation identifies a ∼2,600 year cyclic pattern of aridity. The most pronounced period peaks around 21,500 calibrated years BP, corresponding to the onstart of the period of lowest global sea level and glacial advance in New Zealand....[Show more]

dc.contributor.authorDe Deckker, Patrick
dc.date.accessioned2015-12-13T23:20:35Z
dc.identifier.issn0031-0182
dc.identifier.urihttp://hdl.handle.net/1885/90770
dc.description.abstractDuring the numerous Quaternary sea level fluctuations, the vast Gulf of Carpentaria, in northern Australia, was more often a large lacustrine basin than a shallow sea. Recovery of aeolian quartz particles in a core spanning the last 40,000 calibrated years of sedimentation identifies a ∼2,600 year cyclic pattern of aridity. The most pronounced period peaks around 21,500 calibrated years BP, corresponding to the onstart of the period of lowest global sea level and glacial advance in New Zealand. The following peak of aeolian dust activity in Carpentaria just precedes the termination of the low sea level stand at 19,300 calibrated years BP. The timing of aeolian activity in northern Australia does not coincide with Heinrich events HE 1 to 3 recognised in the Atlantic Ocean, nor with the cyclicity of Chilean glacial activity, thus suggesting that separate 'forces' engender those different phenomena.
dc.publisherElsevier
dc.sourcePalaeogeography, Palaeoclimatology, Palaeoecology
dc.subjectKeywords: aridity; cyclicity; eolian process; Quaternary; sea level change; Australia Aeolian; Cyclicity; Dust; Gulf of Carpentaria; Late Quaternary; Northern Australia; Tropics
dc.titleLate Quaternary cyclic aridity in tropical Australia
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume170
dc.date.issued2001
local.identifier.absfor040605 - Palaeoclimatology
local.identifier.ariespublicationMigratedxPub21216
local.type.statusPublished Version
local.contributor.affiliationDe Deckker, Patrick, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage1
local.bibliographicCitation.lastpage9
local.identifier.doi10.1016/S0031-0182(01)00233-4
dc.date.updated2015-12-12T09:03:42Z
local.identifier.scopusID2-s2.0-0035362611
CollectionsANU Research Publications

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