Towards radiocarbon calibration beyond 28ka using speleothems from the Bahamas

• Published in: Earth and Planetary Science Letters
• Main Authors: Hoffmann, Dirk L., Beck, J. Warren, Richards, David A., Smart, Peter L., Singarayer, Joy S., Ketchmark, Tricia, Hawkesworth, Chris J.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Elsevier 2010
• Subjects: Greenland; Greenland ice core; ice core
• Online Access: https://centaur.reading.ac.uk/34558/; https://doi.org/10.1016/j.epsl.2009.10.004

We present a new speleothem record of atmospheric Δ14C between 28 and 44 ka that offers considerable promise for resolving some of the uncertainty associated with existing radiocarbon calibration curves for this time period. The record is based on a comprehensive suite of AMS 14C ages, using new low...