Rapid radiocarbon (14C) analysis of coral and carbonate samples using a continuous-flow accelerator mass spectrometry (CFAMS) system


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dc.contributor.author McIntyre, Cameron P.
dc.contributor.author Roberts, Mark L.
dc.contributor.author Burton, Joshua R.
dc.contributor.author McNichol, Ann P.
dc.contributor.author Burke, Andrea
dc.contributor.author Robinson, Laura F.
dc.contributor.author von Reden, Karl F.
dc.contributor.author Jenkins, William J.
dc.date.accessioned 2011-11-28T15:53:10Z
dc.date.available 2012-05-05T08:33:37Z
dc.date.issued 2011-11-05
dc.identifier.citation Paleoceanography 26 (2011): PA4212 en_US
dc.identifier.uri http://hdl.handle.net/1912/4897
dc.description Author Posting. © American Geophysical Union, 2011. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography 26 (2011): PA4212, doi:10.1029/2011PA002174. en_US
dc.description.abstract Radiocarbon analyses of carbonate materials provide critical information for understanding the last glacial cycle, recent climate history and paleoceanography. Methods that reduce the time and cost of radiocarbon (14C) analysis are highly desirable for large sample sets and reconnaissance type studies. We have developed a method for rapid radiocarbon analysis of carbonates using a novel continuous-flow accelerator mass spectrometry (CFAMS) system. We analyzed a suite of deep-sea coral samples and compared the results with those obtained using a conventional AMS system. Measurement uncertainty is <0.02 Fm or 160 Ryr for a modern sample and the mean background was 37,800 Ryr. Radiocarbon values were repeatable and in good agreement with those from the conventional AMS system. Sample handling and preparation is relatively simple and the method offered a significant increase in speed and cost effectiveness. We applied the method to coral samples from the Eastern Pacific Ocean to obtain an age distribution and identify samples for further analysis. This paper is intended to update the paleoceanographic community on the status of this new method and demonstrate its feasibility as a choice for rapid and affordable radiocarbon analysis. en_US
dc.description.sponsorship This work was performed under NSF Cooperative Agreement OCE‐0753487, and also NSF‐OPP awards 0636787 and 0944474. en_US
dc.format.mimetype text/plain
dc.format.mimetype application/pdf
dc.language.iso en_US en_US
dc.publisher American Geophysical Union en_US
dc.relation.uri http://dx.doi.org/10.1029/2011PA002174
dc.subject 14C en_US
dc.subject CFAMS en_US
dc.subject Carbonate en_US
dc.subject Coral en_US
dc.subject Paleoceanography en_US
dc.subject Radiocarbon en_US
dc.title Rapid radiocarbon (14C) analysis of coral and carbonate samples using a continuous-flow accelerator mass spectrometry (CFAMS) system en_US
dc.type Article en_US
dc.identifier.doi 10.1029/2011PA002174

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