Reanalysis of the Atmospheric Radiocarbon Calibration Record from Lake Suigetsu, Japan

Journal article


Bronk Ramsey, C., Heaton, T.J., Schlolaut, G., Staff, R.A., Bryant, C.L., Brauer, A., Lamb, H.F., Marshall, M. and Nakagawa, T. 2020. Reanalysis of the Atmospheric Radiocarbon Calibration Record from Lake Suigetsu, Japan. Radiocarbon. Vol 62 (Issue 4), pp. 989 - 999. https://doi.org/10.1017/rdc.2020.18
AuthorsBronk Ramsey, C., Heaton, T.J., Schlolaut, G., Staff, R.A., Bryant, C.L., Brauer, A., Lamb, H.F., Marshall, M. and Nakagawa, T.
Abstract

Terrestrial plant macrofossils from the sedimentary record of Lake Suigetsu, Japan, provide the only quasi-continuous direct atmospheric record of radiocarbon (14C) covering the last 50 ka cal BP (Bronk Ramsey et al. 2012). Since then, new high precision data have become available on U-Th dated speleothems from Hulu Cave China, covering the same time range (Cheng et al. 2018). In addition, an updated varve-based chronology has also been published for the 2006 core from Lake Suigetsu (SG06) based on extended microscopic analysis of the sediments and improved algorithms for interpolation (Schlolaut et al. 2018). Here we reanalyze the radiocarbon dataset from Suigetsu based on the new varve counting information and the constraints imposed by the speleothem data. This enables the new information on the calendar age scale of the Suigetsu dataset to be used in the construction of the consensus IntCal calibration curve. Comparison of the speleothem and plant macrofossil records provides insight into the mechanisms underlying the incorporation of carbon into different types of record and the relative strengths of different types of archive for calibration purposes.

Keywordscalibration; lake sediments; radiocarbon
Year2020
JournalRadiocarbon
Journal citationVol 62 (Issue 4), pp. 989 - 999
PublisherCambridge University Press
ISSN0033-8222
1945-5755
Digital Object Identifier (DOI)https://doi.org/10.1017/rdc.2020.18
Web address (URL)http://www.scopus.com/inward/record.url?eid=2-s2.0-85086734590&partnerID=MN8TOARS
Output statusPublished
Publication dates
Online25 Mar 2020
Aug 2020
Publication process dates
Deposited15 Jun 2023
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