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dc.contributor.authorKlein, Jeffrey
dc.contributor.authorGiegengack, Robert
dc.contributor.authorMiddleton, Roy
dc.contributor.authorSharma, Pankaj
dc.contributor.authorUnderwood, J.
dc.contributor.authorWeeks, R. A.
dc.date.accessioned2021-02-11T19:52:49Z
dc.date.available2021-02-11T19:52:49Z
dc.date.issued1986-01-01
dc.identifier.citationKlein, J., Giegengack, R., Middleton, R., Sharma, P., Underwood, J. R., & Weeks, R. A. (1986). Revealing histories of exposure using in situ produced 26Al and 10Be in Libyan desert glass. Radiocarbon, 28(2A), 547-555.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S0033822200007700
dc.identifier.urihttp://hdl.handle.net/10150/652795
dc.descriptionFrom the 12th International Radiocarbon Conference held in Trondheim, June 24-28, 1985.
dc.description.abstractWe present the results of measurements of 26Al and 10Be produced in situ in 12 samples of Libyan Desert Glass by cosmic rays during the last ten million years. Based on the variability of the concentrations of 10Be and of the 26Al/10Be ratios we measured, we conclude that individual fragments of glass have experienced different exposure histories, implying several major redistributions of the glass within the past 106 years. The 26Al and 10Be concentrations are inconsistent with the theoretical estimates of the rates of in situ production. We estimate minimum production rates of 70 atoms g-1 yr-1 and 10 atoms g-1 yr-1 for 26Al and10Be, respectively, produced in quartz at sea level between 60-90 degree latitude. Despite the present uncertainty in the rates of production, we feel that these results show clearly the effectiveness of in situ produced 26Al and10Be in studying earth-surface processes.
dc.language.isoen
dc.publisherAmerican Journal of Science
dc.relation.urlhttp://radiocarbon.webhost.uits.arizona.edu/
dc.rightsCopyright © The American Journal of Science
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectLibyan Desert
dc.subjectLibyan Desert glass
dc.subjectLibya
dc.subjecthistory
dc.subjectcosmic rays
dc.subjectin situ
dc.subjectAfrica
dc.subjectNorth Africa
dc.subjectBe 10
dc.subjectAl 26
dc.subjectalkaline earth metals
dc.subjectberyllium
dc.subjectmetals
dc.subjectaluminum
dc.subjectexposure age
dc.subjectmethods
dc.subjectgeochronology
dc.subjectisotopes
dc.subjectradioactive isotopes
dc.subjectabsolute age
dc.titleRevealing Histories of Exposure Using In Situ Produced 26Al and 10Be in Libyan Desert Glass
dc.typeProceedings
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.volume28
dc.source.issue2A
dc.source.beginpage547
dc.source.endpage555
refterms.dateFOA2021-02-11T19:52:49Z


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