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dc.contributor.authorBeramendi-Orosco, Laura E.
dc.contributor.authorGonzalez-Hernandez, Galia
dc.contributor.authorVillanueva-Diaz, Jose
dc.contributor.authorSantos-Arevalo, Francisco J.
dc.contributor.authorGómez-Martinez, Isabel
dc.contributor.authorCienfuegos-Alvarado, Edith
dc.contributor.authorMorales-Puente, Pedro
dc.contributor.authorUrrutia-Fucugauchi, Jamie
dc.date.accessioned2021-02-11T21:23:00Z
dc.date.available2021-02-11T21:23:00Z
dc.date.issued2010-01-01
dc.identifier.citationBeramendi-Orosco, L. E., Gonzalez-Hernandez, G., Villanueva-Diaz, J., Santos-Arevalo, F. J., Gómez-Martinez, I., Cienfuegos-Alvarado, E., ... & Urrutia-Fucugauchi, J. (2010). Modern radiocarbon levels for Northwestern Mexico derived from tree rings: A comparison with Northern Hemisphere zones 2 and 3 curves. Radiocarbon, 52(3), 907-914.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S0033822200046002
dc.identifier.urihttp://hdl.handle.net/10150/654265
dc.descriptionFrom the 20th International Radiocarbon Conference held in Kona, Hawaii, USA, May 31-June 3, 2009.
dc.description.abstractThe radiocarbon variation for northwestern Mexico during the period 1950-2004 was studied by accelerator mass spectrometry (AMS) and liquid scintillation counting (LSC) analyses of tree rings. Two tree-ring sequences of Pseudotsuga menziesii, sampled in a site isolated from urban centers and active volcanoes (26.18 degrees N, 106.3 degrees W, 3000 m asl), were dendrochronologically dated and separated in annual rings prior to 14C analysis. Results obtained show a similar profile to the values reported for the Northern Hemisphere (NH), having significant correlation coefficients with the compilation curves for NH zone 2 (r = 0.987, p < 0.001) and NH zone 3 (r = 0.993, p < 0.001). The maximum peak is centered at 1964.5 with a ∆14C value of 713.15 +/- 9.3‰. The values obtained for the period 1958-1965 are lower than zone 2 values and higher than zone 3 values. For the period 1975-2004, the values obtained are higher than the NH compilation curve and other NH records. We attribute the first divergence to the North American monsoon that may have carried 14C-depleted air from the south during the summer months; the second divergence may be attributable to 14C-enriched biospheric CO2.
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.titleModern Radiocarbon Levels for Northwestern Mexico Derived from Tree Rings: A Comparison with Northern Hemisphere Zones 2 and 3 Curves
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.beginpage907
dc.source.endpage914
refterms.dateFOA2021-02-11T21:23:00Z


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