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dc.contributor.authorXian, Feng
dc.contributor.authorZhou, Weijian
dc.contributor.authorKong, Xianghui
dc.contributor.authorJiang, Jun
dc.contributor.authorWu, Zhenkun
dc.contributor.authorChen, Ning
dc.contributor.authorZhao, Guoqing
dc.date.accessioned2021-02-11T21:45:47Z
dc.date.available2021-02-11T21:45:47Z
dc.date.issued2012-05-04
dc.identifier.citationXian, F., Zhou, W., Kong, X., Jiang, J., Wu, Z., Chen, N., & Zhao, G. (2012). Measurement of 10Be concentration of modern falling dust in Northern China. Radiocarbon, 54(1), 37-43.
dc.identifier.issn0033-8222
dc.identifier.doi10.2458/azu_js_rc.v54i1.16010
dc.identifier.urihttp://hdl.handle.net/10150/654844
dc.description.abstractPaleoenvironmental and paleogeomagnetic tracing studies from Chinese loess 10Be have progressed in recent years (Zhou et al. 2007a,b, 2010). In this approach, 10Be flux determined from sediment concentration and accumulation rate may be used to recover information about paleomonsoon rainfall rates as well as past variations in the geomagnetic field strength. However, these methods require that a correction be made for residual undecayed 10Be in remobilized dust. To better understand the feature of the 10Be signals related to the remobilized dust, we report the first observational study on 10Be concentration of modern falling dust using the 3MV multi-element accelerator mass spectrometer (AMS) in the Xi’an AMS Center. Ten samples collected at Ansai observation station (109°19'E, 36°51'N) in northern China from May 2008 to June 2009 are measured along with 3 chemical blanks. The results clearly show that the 10Be content of modern falling dust is relatively uniform, with a mean value of 1.21 × 10sup8/sup atoms/g, a measurement similar to that of Chinese loess (Zhou et al. 2007a) and to the value found in the study by Shen et al. (2009) on dust 10Be falling near Dingbian, China (1.25 ± 0.06 × 10sup8/sup atoms/g). Despite the fact that modern dust flux is much higher in spring relative to summer in northern China, 10Be concentration in falling dust remains fairly constant. In addition, we find that dust 10Be concentration is roughly independent of the local precipitation changes. This feature might be considered as an analogue to improve our understanding on the fundamental information of the source component contained in loess 10Be records and its spatial/temporal distribution features.
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.titleMeasurement of 10Be Concentration of Modern Falling Dust in Northern China
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.volume54
dc.source.issue1
dc.source.beginpage37
dc.source.endpage43
refterms.dateFOA2021-02-11T21:45:47Z


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