A note on reporting of reservoir 14C disequilibria and age offsets
Skinner, Luke C.
Beaupre, Steven R.
MetadataShow full item record
KeywordReservoir age; Reservoir effect; Freshwater effect; Hardwater effect; Ventilation age; Radiocarbon
Reservoir age offsets are widely used to correct marine and speleothem radiocarbon age measurements for various calibration purposes. They also serve as a powerful tracer for carbon cycle dynamics. However, a clear terminology regarding reservoir age offsets is lacking, sometimes leading to miscalculations. This note seeks to provide consistent conventions for reporting reservoir 14C disequilibria useful to a broad range of environmental sciences. This contribution introduces the F14R and δ14R metrics to express the relative 14C disequilibrium between two contemporaneous reservoirs and the R metric as the associated reservoir age offset.
Author Posting. © The Author(s), 2016. This is the author's version of the work. It is posted here for personal use, not for redistribution. The definitive version was published in Radiocarbon 58 (2016): 205-211, doi:10.1017/RDC.2015.22.
Showing items related by title, author, creator and subject.
On the effective capacity of the dense-water reservoir for the Nordic Seas overflow : some effects of topography and wind stress Yang, Jiayan; Pratt, Lawrence J. (American Meteorological Society, 2013-02)The overflow of the dense water mass across the Greenland–Scotland Ridge (GSR) from the Nordic Seas drives the Atlantic meridional overturning circulation (AMOC). The Nordic Seas is a large basin with an enormous reservoir ...
Radiocarbon profiles of the NW Pacific from the LGM and deglaciation : evaluating ventilation metrics and the effect of uncertain surface reservoir ages Cook, Mea S.; Keigwin, Lloyd D. (John Wiley & Sons, 2015-03-12)During the last deglaciation, the ventilation of the subarctic Pacific is hypothesized to have changed dramatically, including the rejuvenation of a poorly ventilated abyssal water mass that filled the deep ocean, and ...
Druffel, Ellen R. M.; Robinson, Laura F.; Griffin, Sheila; Halley, Robert B.; Southon, John R.; Adkins, Jess F. (American Geophysical Union, 2008-05-13)The 14C reservoir age of the surface ocean was determined for two Holocene periods (4908–4955 and 3008–3066 calendar (cal) B.P.) using U/Th-dated corals from Biscayne National Park, Florida, United States. We found that ...