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Mass Spectrometric 14C and U-Th Measurements in Coral

dc.contributor.authorBurr, G. S.
dc.contributor.authorEdwards, R. L.
dc.contributor.authorDonahue, D. J.
dc.contributor.authorDruffel, E. R. M.
dc.contributor.authorTaylor, F. W.
dc.date.accessioned2021-02-11T20:33:18Z
dc.date.available2021-02-11T20:33:18Z
dc.date.issued1992-01-01
dc.identifier.citationBurr, G. S., Edwards, R. L., Donahue, D. J., Druffel, E. R. M., & Taylor, F. W. (1992). Mass spectrometric 14C and U-Th measurements in coral. Radiocarbon, 34(3), 611-618.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S003382220006389X
dc.identifier.urihttp://hdl.handle.net/10150/653345
dc.descriptionFrom the 14th International Radiocarbon Conference held in Tucson, AZ, May 20-24, 1991.
dc.description.abstractWe discuss U-Th and 14C measurements in coral. Samples with U-Th dates in excess of 50 ka BP were chosen for study. Some bulk samples from this group have measurable 14C dates, which range from 30 ka to 43 ka BP. These can be explained by 0.5-2.5% contamination by modern carbon. This small amount of contamination can produce significant offsets in 14C dates of coral samples older than -10 ka. It may be undetectable in X-ray powder diffraction patterns. We describe a sample pretreatment that removes the modern carbon by selective dissolution and produces accurate 14C dates.
dc.language.isoen
dc.publisherDepartment of Geosciences, The University of Arizona
dc.relation.urlhttp://radiocarbon.webhost.uits.arizona.edu/
dc.rightsCopyright © by the Arizona Board of Regents on behalf of the University of Arizona. All rights reserved.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleMass Spectrometric 14C and U-Th Measurements in Coral
dc.typeProceedings
dc.typetext
dc.identifier.journalRadiocarbon
dc.description.noteThis material was digitized as part of a cooperative project between Radiocarbon and the University of Arizona Libraries.
dc.description.collectioninformationThe Radiocarbon archives are made available by Radiocarbon and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume34
dc.source.issue3
dc.source.beginpage611
dc.source.endpage618
refterms.dateFOA2021-02-11T20:33:18Z


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