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

  • Radiocarbon, Volume 39, Number 1 (1997)

    Department of Geosciences, The University of Arizona, 1997-01-01
  • From the Editor

    Long, Austin (Department of Geosciences, The University of Arizona, 1997-01-01)
  • Erratum

    Department of Geosciences, The University of Arizona, 1997-01-01
  • Associate Editors

    Department of Geosciences, The University of Arizona, 1997-01-01
  • 1997 Price List

    Department of Geosciences, The University of Arizona, 1997-01-01
  • Radiocarbon AMS Dating of Pollen Concentrated from Eolian Sediments: Implications for Monsoon

    Zhou, Weijian; Donahue, Douglas; Jull, A. J. T. (Department of Geosciences, The University of Arizona, 1997-01-01)
    Dating pollen concentrated from eolian sediments provides a new way to establish a chronological framework on the Loess Plateau of China. We show that pollen deposited simultaneously with sediment in a stable environment can provide reliable ages. We suggest that the reliability of pollen dating can be evaluated by comparison with wood cellulose or charcoal ages from the same stratigraphic level. Dating pollen concentrates from the various profiles indicates paleomonsoon precipitation variability at the loess/desert transitional belt from the late Pleistocene to the early Holocene.
  • Radiocarbon Ages of Mammoths in Northern Eurasia: Implications for Population Development and Late

    Department of Geosciences, The University of Arizona, 1997-01-01
    Many mammoth remains have been radiocarbon-dated. We present here more than 360 14C dates on bones, tusks, molars and soft tissues of mammoths and discuss some issues connected with the evolution of mammoths and their environment: the problem of the last mammoth; mammoth taphonomy; the plant remains and stable isotope records accompanying mammoth fossils; paleoclimate during the time of the mammoths and dating of host sediments. The temporal distribution of the 14C dates of fossils from the northern Eurasian territory is even for the entire period from 40 to 10 ka BP.
  • Penguin, a Macintosh Application for Entry and Presentation of Radiocarbon-Dated Samples

    Petri, Antonio; Baroni, Carlo (Department of Geosciences, The University of Arizona, 1997-01-01)
    Penguin is a Macintosh computer application that facilitates the use of CALIB 3.03, the 14C age calibration program by Stuiver and Reimer (1993). Penguin offers an easy user interface based on the well-known Macintosh standard multiwindow environment to create and edit the CALIB 3.03 calibration files and to export data in text format. Penguin and CALIB interact at the file level, i.e., Penguin is capable of reading and writing files in CALIB formats. Files containing the data are created in the Penguin environment and then saved on disk in the Penguin format. Penguin allows multiple editing of the calibration parameters and recalibration of the list of samples without the need to insert any modifications manually throughout the list. Penguin can also be used to read already calibrated files in order to extract the "cal" ages and display them in a spreadsheet-like window.
  • Characterization of Groundwater in the Cariri (Ceará, Brazil) by Environmental Isotopes and Electric Conductivity

    Santiago, Marlucia F.; Silva, C. M. S. V.; Mendes Filho, J.; Frischkorn, H. (Department of Geosciences, The University of Arizona, 1997-01-01)
    The Cariri region is the largest sedimentary basin in the state of Ceara, Brazil. Located in the southern portion of the state, it comprises the Araripe Plateau and the Cariri Valley on its northern foot. The region's groundwaters are being heavily exploited. Using electric conductivity (EC) and 18O, 14C and 3H data, we differentiate groundwaters from various origins. We identified three horizons of springs on the slope of the Plateau through their geologic environment and the EC of their waters. Groundwaters from wells in the Cariri Valley are classified according to the aquifers exploited as indicated by the drilling profiles. However, strong tectonic features and intense fracturing in the Valley produce a great many horizontal discontinuities, which result in mixing of groundwaters from different aquifers. Mixing systems are described in terms of d18O-14C and EC-14C.
  • Calibration of Radiocarbon Dates for the Late Pleistocene Using U/Th Dates on Stalagmites

    Vogel, John C.; Kronfeld, Joel (Department of Geosciences, The University of Arizona, 1997-01-01)
    Twenty paired 14C U/Th dates covering most of the past 50,000 yr have been obtained on a stalagmite from the Cango Caves in South Africa as well as some additional age-pairs on two stalagmites from Tasmania that partially fill a gap between 7 ka and 17 ka ago. After allowance is made for the initial apparent 14C ages, the age-pairs between 7 ka and 20 ka show satisfactory agreement with the coral data of Bard et al. (1990, 1993). The results for the Cango stalagmite between 25 ka and 50 ka show the 14C dates to be substantially younger than the U/Th dates except at 49 ka and 29 ka, where near correspondence occurs. The discrepancies may be explained by variations in 14C production caused by changes in the magnetic dipole field of the Earth. A tentative calibration curve for this period is offered.
  • Bomb 14C Recorded in Laminated Speleothems: Calculation of Dead Carboi Proportion

    Genty, Dominique; Massault, Marc (Department of Geosciences, The University of Arizona, 1997-01-01)
    We performed radiocarbon measurements using accelerator mass spectrometry (AMS) on 6 stalagmites, 3 stalactites and 7 seepage waters from four different caves in Southwest France and Belgium in order to calculate the dead carbon proportion (dcp). All the speleothems studied are modern and annually laminated, which offers the advantage of an accurate chronology, with better than one-year resolution. Coupled with the fact that very little calcite is necessary for an AMS measurement (between 1.5 and 7 yr of calcite deposit), we obtained dead carbon values within an uncertainty limit of +/1.5%. Results show that the dead carbon proportion varies from 9.2% to 21.9% for calcite deposits and from 3.6% to 21.9% for water. In each sampling site, the dcp is homogeneous. Although the inter-site dcp varies by >11%, its average value of 15.5% +/4.4 still lies within the uncertainty range of the accepted value of 15% +/5 (dilution factor of 0.85 +/0.5). We compare the average dcp of each site with the local geology, vegetation and climate. Given similar geology and temperature, the highest dcp values are found under forest cover; dcp difference is up to 9%. However, the Belgian site, which is also under a forest, shows a dcp very close to the dcp found under grassland sites of Southwest France, which proves that other unknown factors may play an important role in dissolution processes. Secondary calcite deposition and redissolution in the soil zone or more likely in the fracture system before reaching the cave itself could also explain the inter-site differences. The IAEA isotopic model (Pearson model adapted for open systems) is in good agreement with the measured activities.