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dc.contributor.authorSato, Taiichi
dc.contributor.authorSakurai, Hirohisa
dc.contributor.authorSuzuki, Kayo
dc.contributor.authorTakahashi, Yui
dc.date.accessioned2021-02-11T21:22:16Z
dc.date.available2021-02-11T21:22:16Z
dc.date.issued2010-01-01
dc.identifier.citationSato, T., Sakurai, H., Suzuki, K., & Takahashi, Y. (2010). 14C age easurements of single-year tree rings of old wood samples 22,000 14C years BP. Radiocarbon, 52(3), 901-906.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S0033822200045999
dc.identifier.urihttp://hdl.handle.net/10150/654089
dc.descriptionFrom the 20th International Radiocarbon Conference held in Kona, Hawaii, USA, May 31-June 3, 2009.
dc.description.abstractRadiocarbon ages of single-year tree rings were measured for Kaminoyama wood samples using accelerator mass spectrometry (AMS) in 2 Japanese facilities, MALT and JAEA, in order to investigate the periodic variation of 14C concentrations relating to the 11-yr solar cycle near 26,000 yr BP. Eight sequential measurements of 14C ages were carried out for a set of 13 alternate single-year tree rings covering 26 yr. Averages of the 5 data sets in MALT and 3 data sets in JAEA were 22,146 +/- 50 and 22,407 +/- 58 14C yr BP, respectively, indicating an offset of 260 +/- 77 14C yr. Multiple sequential measurements are advantageous for evaluating offsets. The standard deviation of the residuals of 14C ages from the averages in each data set was 118 14C yr, in contrast to that of 234 14C yr for the combined data sets due to an elimination effect in the offsets. The profiles of weighted mean values for the residuals of 14C ages showed similar enhancements with a width of ~12 yr for measurements in the 2 facilities. This indicates the reproducibility of the multiple sequential measurements. In the profile for the combined 8 data sets, the 14C enhancement was 73 +/- 36 14C yr from the average.
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.title14C Age Measurements of Single-Year Tree Rings of Old Wood Samples 22,000 14C Years BP
dc.typeProceedings
dc.typetext
dc.identifier.journalRadiocarbon
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.volume52
dc.source.issue3
dc.source.beginpage901
dc.source.endpage906
refterms.dateFOA2021-02-11T21:22:18Z


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