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dc.contributor.authorDamon, Paul E.
dc.contributor.authorBurr, George
dc.contributor.authorCain, W. J.
dc.contributor.authorDonahue, D. J.
dc.date.accessioned2021-02-11T20:32:46Z
dc.date.available2021-02-11T20:32:46Z
dc.date.issued1992-01-01
dc.identifier.citationDamon, P. E., Burr, G., Cain, W. J., & Donahue, D. J. (1992). Anomalous 11-year Delta-14C cycle at high latitudes?. Radiocarbon, 34(2), 235-238.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S0033822200013679
dc.identifier.urihttp://hdl.handle.net/10150/653244
dc.description.abstractWe find no evidence for an anomalously intense 11-yr cycle in Delta-14C at high latitudes during the period, AD 1870–1885, as reported by Fan et al. (1983, 1986). However, there does appear to be a regional effect within the MacKenzie River region (67 degrees N, 130 degrees W), with atmospheric 14C depressed by 2.6 +/0.9 (mean of sigma) % relative to the Olympic Peninsula. Such an effect would require only 5% of CO2 in the air mass to have been derived from 5% 14C-depleted soil gas CO2. This small but apparently significant regional effect could be caused by accumulation of CO2 within the frozen earth followed by outgassing during the spring thaw. The short growing season would enhance the effect by allowing insufficient time for global atmospheric equilibration.
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.subjectOlympic Peninsula
dc.subjectsolar cycles
dc.subjectcosmochronology
dc.subjectWashington
dc.subjectMackenzie Delta
dc.subjectMackenzie District Northwest Territories
dc.subjectCanada
dc.subjectNorthwest Territories
dc.subjectWestern Canada
dc.subjectatmosphere
dc.subjecttree rings
dc.subjectUnited States
dc.subjectC 14
dc.subjectcarbon
dc.subjectisotopes
dc.subjectradioactive isotopes
dc.subjectcarbon dioxide
dc.titleAnomalous 11-Year Delta-14C Cycle at High Latitudes?
dc.typeArticle
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.issue2
dc.source.beginpage235
dc.source.endpage238
refterms.dateFOA2021-02-11T20:32:46Z


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