AMS C14 dating using pollen concentrate for sediments with low organic content in the tropics of Australia

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dc.contributor.authorMoss, PTen_AU
dc.contributor.authorMcTainsh, GHen_AU
dc.contributor.authorDunbar, GBen_AU
dc.contributor.authorDickens, Gen_AU
dc.contributor.authorJacobsen, GEen_AU
dc.date.accessioned2009-11-24T04:39:17Zen_AU
dc.date.accessioned2010-04-30T04:57:34Zen_AU
dc.date.available2009-11-24T04:39:17Zen_AU
dc.date.available2010-04-30T04:57:34Zen_AU
dc.date.issued2007-07en_AU
dc.date.statistics2007-07en_AU
dc.description.abstractThis study discusses the results of using pollen concentrate for AMS C14 dating of sediments with low organic content for two sites in the tropical north of Australia. The first site from the Mitchell Plateau in the Kimberly region of Western Australia is a swamp deposit within a small enclosed drainage basin, with a high content of inorganic sediments. Seven AMS C-14 dates have been obtained for the first 70 cm of this record, which provides a relatively consistent age chronology that stretches back 1670 BP and can be directly compared with pollen data from the same depths. The second site, ODP 820, from the humid tropics region of northeastern Queensland consists of marine sediments with high values of Calcium Carbonate. Several AMS C-14 on foraminifera have been obtained for this record, which provide a consistent age chronology for the first 8 m of the core and which is thought to cover the last 44,000 BP. More recently, seven AMS C-14 dates based on pollen concentrate have been obtained and have been directly compared with the forminiferal derived ages, as well as the core’s pollen record. The dates and concurrent pollen data provide a better understanding of the sedimentological processes, both marine and terrestrial, that have been operating in the region, as well as providing insight into the nature of the reworking of pollen grains in marine sediments.en_AU
dc.description.sponsorshipInternational Union for Quaternary Researchen_AU
dc.description.urihttps://doi.org/10.1016/j.quaint.2007.04.001en_AU
dc.identifier.citationMoss, P. T., McTainsh, G. H., Dunbar, G., Dickens, G., & Jacobsen, G. (2007). AMS C14 dating using pollen concentrate for sediments with low organic content in the tropics of Australia. International Union for Quaternary Research XVII Congress (INQUA) – “The Tropics: Heat Engine of the Quaternary”, 28th July – 3rd August 2007. Cairns, Australia: Cairns Convention Centre. In Quaternary International, 167-168, 290. doi:10.1016/j.quaint.2007.04.001en_AU
dc.identifier.conferenceenddate3 August 2007en_AU
dc.identifier.conferencenameInternational Union for Quaternary Research XVII Congress (INQUA) – “The Tropics: Heat Engine of the Quaternaryen_AU
dc.identifier.conferenceplaceCairns, Australiaen_AU
dc.identifier.conferencestartdate28 July 2007en_AU
dc.identifier.govdoc1064en_AU
dc.identifier.issn1040-6182en_AU
dc.identifier.pagination290en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/2476en_AU
dc.identifier.volume167-168en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectCarbon 14en_AU
dc.subjectPollenen_AU
dc.subjectTropical regionsen_AU
dc.subjectAustraliaen_AU
dc.subjectMass spectroscopyen_AU
dc.subjectIsotope datingen_AU
dc.titleAMS C14 dating using pollen concentrate for sediments with low organic content in the tropics of Australiaen_AU
dc.typeConference Abstracten_AU
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