RSS 1.0Radiocarbon, Volume 31, Number 2 (1989)
ABOUT THIS COLLECTION
Radiocarbon is the main international journal of record for research articles and date lists relevant to 14C and other radioisotopes and techniques used in archaeological, geophysical, oceanographic, and related dating.
This archive provides access to Radiocarbon Volumes 1-54 (1959-2012).
As of 2016, Radiocarbon is published by Cambridge University Press. The journal is published quarterly. Radiocarbon also publishes conference proceedings and monographs on topics related to fields of interest. Visit Cambridge Online for new Radiocarbon content and to submit manuscripts.
ISSN: 0033-8222
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Recent Submissions
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Radiocarbon, Volume 31, Number 2 (1989)Department of Geosciences, The University of Arizona, 1989-01-01
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Proceedings of the 13th International Radiocarbon ConferenceDepartment of Geosciences, The University of Arizona, 1989-01-01
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Price ListDepartment of Geosciences, The University of Arizona, 1989-01-01
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International Workshop on Intercomparison of Radiocarbon LaboratoriesDepartment of Geosciences, The University of Arizona, 1989-01-01
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Associate EditorsDepartment of Geosciences, The University of Arizona, 1989-01-01
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Announcing...The 14th International Radiocarbon ConferenceDepartment of Geosciences, The University of Arizona, 1989-01-01
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ArchaeometryDepartment of Geosciences, The University of Arizona, 1989-01-01
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Announcing...Radiocarbon Has Moved to the University of ArizonaDepartment of Geosciences, The University of Arizona, 1989-01-01
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AMS GeoscientistDepartment of Geosciences, The University of Arizona, 1989-01-01
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Temporal 10Be and 14C Variations: A Tool for Paleomagnetic ResearchTemporal variations of cosmogenic radionuclide atmospheric concentrations can be caused by such global phenomena as solar activity and geomagnetic field changes as well as atmospheric circulation processes. These causes can be distinguished by the comparison of several isotope records corresponding to the same time period. We discuss a possibility for reconstructing the geomagnetic moment during the last 30,000 years from the comparison of 10Be and 14C concentrations in terrestrial archives. The results agree with conventional paleomagnetic data and promise to enrich our knowledge of geomagnetic field variations and reversals.
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Problems Associated with the Use of Coal as a Source of 14C-Free Background MaterialMany 14C dating laboratories have established that coal samples exhibit a finite 14C age, apparently caused by contamination of the specimens before any laboratory preparation is undertaken. In this work, the possibility that the contamination is due to microbial and fungal activity in the coal substrate is considered and some suggestions are made for alternative sources of background test materials for 14C dating laboratories. Initial results indicate that geologically formed graphites contain little 14C and are likely to be good background test materials, especially in 14C AMS laboratories.
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LaboratoriesDepartment of Geosciences, The University of Arizona, 1989-01-01
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High-Resolution 14C Dating of Organic Deposits Using Natural Atmospheric 14C VariationsThe occurrence of atmospheric 14C variations complicates calibration, ie, the translation of 14C ages into real calendar ages. The procedure of wiggle matching, however, allows very precise calibration, by matching known 14C variations with wiggles in the floating chronology. In principle, wiggle matching can also be applied to a series of 14C dates from organic (peat) deposits. Where, in general, 14C ages are required at short distances and on small samples, dating by 14C accelerator mass spectrometry (AMS) is required.
