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dc.contributor.authorGrimm, Eric C.
dc.date.accessioned2021-02-11T20:59:15Z
dc.date.available2021-02-11T20:59:15Z
dc.date.issued2011-01-01
dc.identifier.citationGrimm, E. C. (2011). High-resolution age model based on AMS radiocarbon ages for Kettle Lake, North Dakota, USA. Radiocarbon, 53(1), 39-53.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S0033822200034342
dc.identifier.urihttp://hdl.handle.net/10150/653899
dc.description.abstractA high-resolution age model was developed for Kettle Lake, North Dakota, USA, from a series of 53 accelerator mass spectrometry (AMS) radiocarbon ages calibrated with Bayesian statistical methods, which provide a monotonically increasing series of calibrated ages with depth. Evident in the sediment are several slumps, debris flows, or landslides, which are confirmed by 14C dating. Removal of these facies produces a continuous sedimentary sequence for the past 13,000 yr with exception of one ~260-yr hiatus associated with a 1.5-m-thick slump deposit. All ages except one are on terrestrial macrofossils and charcoal. A test age on aquatic organic detritus shows a hardwater effect of 600 yr at ~2000 cal BP. Two ages from the same level on herbaceous charcoal and Chenopodium seeds are statistically the same, which further demonstrates the suitability of charcoal from grassland environments for AMS 14C age control. However, 2 specimens of wood charcoal are too old relative to bracketing ages and glacial geologic history. These ages confirm the sedimentary interpretation of redeposition and provide a caution about the longevity of wood charcoal in the environment and its suitability for age control in lacustrine sediments.
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.titleHigh-Resolution Age Model Based on AMS Radiocarbon Ages for Kettle Lake, North Dakota, USA
dc.typeArticle
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.volume53
dc.source.issue1
dc.source.beginpage39
dc.source.endpage53
refterms.dateFOA2021-02-11T20:59:15Z


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