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|Title:||Late Permian U-Pb CA-IDTIMS isotope geochronology of the Bowen Basin, Eastern Australia||Contributor(s):||Metcalfe, Ian (author); Nicoll, RS (author); Mundil, R (author); Denyszyn, S (author); Crowley, J (author); Mantle, D (author); Willink, R (author); Foster, CB (author)||Publication Date:||2011||Handle Link:||https://hdl.handle.net/1959.11/8410||Abstract:||High-resolution geochronology with an age resolution at the permil or sub-permil levels has the potential to internationally calibrate Late Permian peri-Gondwanan sequences in the Bowen Basin. Previous attempts at such calibration have relied on carbon-isotope records and very tenuous biostratigraphic and lithostratigraphic correlations here deemed unsuitable for a high-resolution chronostratigraphic framework for the basin. Existing SHRIMP U-Pb ages for some tuffs in the basin have been compromised by inaccuracy and low precision when compared to the CA-IDTIMS method. High-precision CA-IDTIMS ages also allow us to correlate individual tuff beds across the basin, to estimate rates of climatic and biotic change between the late Guadalupian and late Changhsingian major Permian mass extinctions. We here report seven new U-Pb CA-IDTIMS ages for ash-tuffs in the Late Permian of the Bowen Basin.||Publication Type:||Conference Publication||Conference Name:||ICCP 2011: XVII International Congress on the Carboniferous and Permian, Perth, Australia, 3rd - 8th July, 2011||Conference Details:||ICCP 2011: XVII International Congress on the Carboniferous and Permian, Perth, Australia, 3rd - 8th July, 2011||Source of Publication:||Programme & Abstracts: The XVII International Congress on the Carboniferous and Permian, p. 92-92||Publisher:||Geological Survey of Western Australia||Place of Publication:||Perth, Australia||Field of Research (FOR):||040303 Geochronology||HERDC Category Description:||E3 Extract of Scholarly Conference Publication||Other Links:||http://geodocs.doir.wa.gov.au/search.jsp?cabinetId=1101&Combined=N11X
|Series Name:||Geological Survey of Western Australia Record||Series Number :||2011/20||Statistics to Oct 2018:||Visitors: 519
|Appears in Collections:||Conference Publication|
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