Integration of the old and new Lake Suigetsu (Japan) terrestrial radiocarbon calibration data sets

Staff, R. A. et al. (2013) Integration of the old and new Lake Suigetsu (Japan) terrestrial radiocarbon calibration data sets. Radiocarbon, 55(4), pp. 2049-2058. (doi: 10.2458/azu_js_rc.v55i2.16339)

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The varved sediment profile of Lake Suigetsu, central Japan, offers an ideal opportunity from which to derive a terrestrial record of atmospheric radiocarbon across the entire range of the 14C dating method. Previous work by Kitagawa and van der Plicht (1998a,b, 2000) provided such a data set; however, problems with the varve-based age scale of their SG93 sediment core precluded the use of this data set for 14C calibration purposes. Lake Suigetsu was re-cored in summer 2006, with the retrieval of overlapping sediment cores from 4 parallel boreholes enabling complete recovery of the sediment profile for the present “Suigetsu Varves 2006” project (Nakagawa et al. 2012). Over 550 14C determinations have been obtained from terrestrial plant macrofossils picked from the latter SG06 composite sediment core, which, coupled with the core’s independent varve chronology, provides the only non-reservoir-corrected 14C calibration data set across the 14C dating range. Here, physical matching of archive U-channel sediment from SG93 to the continuous SG06 sediment profile is presented. We show the excellent agreement between the respective projects’ 14C data sets, allowing the integration of 243 14C eterminations from the original SG93 project into a composite Lake Suigetsu 14C alibration data set comprising 808 individual 14C determinations, spanning the last 52,800 cal yr.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Bryant, Dr Charlotte and Staff, Dr Richard
Authors: Staff, R. A., Schlolaut, G., Bronk Ramsey, C., Brock, F., Bryant, C. L., Kitagawa, H., Van der Plicht, J., Marshall, M. H., Brauer, A., Lamb, H. F., Payne, R. L., Tarasov, P. E., Haraguchi, T., Gotanda, K., Yonenobu, H., Yokoyama, Y., and Nakagawa, T.
College/School:College of Science and Engineering > Scottish Universities Environmental Research Centre
Journal Name:Radiocarbon
Publisher:University of Arizona
ISSN (Online):1945-5755
Published Online:09 February 2016
Copyright Holders:Copyright © 2013 Arizona Board of Regents on behalf of the University of Arizona
First Published:First published in Radiocarbon 55(4):2049-2058
Publisher Policy:Reproduced under a Creative Commons License

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