[1] Woods Hole Oceanog Inst, Dept Marine Chem & Geochem, Woods Hole, MA 02543 USA
[2] Queens Univ Belfast, Sch Archaeol & Palaeoecol, Belfast BT7 1NN, Antrim, North Ireland
[3] CEREGE, UMR 6635, F-13545 Aix En Provence, France
[4] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
[5] Univ Sheffield, Dept Probabil & Stat, Sheffield S3 7RH, S Yorkshire, England
[6] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA
[7] US Dept State, Off Senior Coordinator Nucl Safety, Washington, DC 20520 USA
[8] Univ Minnesota, Dept Geol & Geophys, Minneapolis, MN USA
[9] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA
[10] Univ Hohenheim, Inst Bot, D-70593 Stuttgart, Germany
[11] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA
[12] Heidelberger Akad Wissensch, D-69120 Heidelberg, Germany
[13] Univ Toronto, Dept Fine Art, Toronto, ON M5S 3G3, Canada
[14] Univ Reading, Dept Archaeol, Reading RG6 6AB, Berks, England
[15] Oxford Radiocarbon Accelerator Unit, Oxford OX2 6BJ, England
[16] Univ Calif Santa Cruz, Dept Ocean Sci, Santa Cruz, CA 92697 USA
[17] Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA
[18] Univ Washington, Quaternary Isotope Lab, Seattle, WA 98195 USA
[19] Univ Texas, Inst Geophys, Austin, TX 78712 USA
[20] Univ Groningen, Ctr Isotope Res, NL-9747 AG Groningen, Netherlands
[21] Leiden Univ, Fac Archaeol, NL-2300 RA Leiden, Netherlands