Effects of sample mass and macrofossil type on radiocarbon dating of arctic and boreal lake sediments

• Main Authors: Oswald, W. W., Anderson, P. M., Brown, T. A., Brubaker, L. B., Hu, F. S., Lozhkin, A. V., Tinner, W., Kaltenrieder, P.
• Other Authors: United States. Department of Energy.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Lawrence Livermore National Laboratory 2006
• Subjects: Charcoal; Copper; Sediments; Alaska; Carbon 14; Lakes; 58 Geosciences; Age Estimation; Wood; Rivers; 54 Environmental Sciences; Organic Matter; Mass Spectroscopy; Accelerators; Isotope Dating; Plant Tissues; Arctic; Boreal Lake; north slope
• Online Access: http://digital.library.unt.edu/ark:/67531/metadc889381/

Dating lake sediments by accelerator mass spectrometry (AMS) {sup 14}C analysis of plant macrofossils overcomes one of the main problems associated with dating bulk sediment samples, the presence of old organic matter. Even so, many AMS dates from arctic and boreal sites appear to misrepresent the a...