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High-precision U-series measurements of more than 500,000 year old fossil corals near the upper U-series dating limit

Andersen, Morten; Stirling, Claudine H; Potter, Emma-Kate; Halliday, Alexander; Blake, Steve G; McCulloch, Malcolm; Ayling, Bridget; O'Leary, Michael

Description

Robust, independent age constraints on the absolute timing of climate events based on the U-series dating of fossil coral are sparse before the last glacial cycle. Using multiple-collector inductively coupled plasma mass spectrometry with multiple-Faraday protocols, we are able to date ∼ 600 ka samples with an uncertainty of better than ± 15 ka (2σ), representing a three-fold improvement in precision compared with previous techniques. Using these methods, we report U-series measurements for a...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
URI: http://hdl.handle.net/1885/28992
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2007.10.010

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