An example CO2 spectrum produced during a Ramped Pyroxidation Run
14CHRONO is also investigating other applications of ramped pyroxidation/combustion, such as a possible solution to dating contaminated samples.
The RP/RC method has been successfully applied to the dating of lime mortar samples where results suggest that CO2 fractions only associated with the setting of the lime binder were isolated. This has potentially provided a refined and improved chronology of the sites in question. Further work is ongoing to investigate the benefits of this method relative to other methods, such as sequential dissolution.
The RP/RC method was also applied to dating a wooden bowl from a museum collection that had been treated with preservatives, developing a new technique for radiocarbon dating of organic artefacts that are contaminated by museum conservation processes. This technique could provide a new avenue for the investigation of museum or archaeological collections previously considered too difficult to date.
For queries or details regarding ramped pyroxidation / combustion at 14CHRONO (currently research only)
Please contact Dr Gerard Barrett
PHONE +44 (0)28 9097 5105
Keaveney, EM, Barrett, GT, Allen, K, Reimer, PJ (2021). A new ramped pyroxidation/combustion facility at 14CHRONO, Belfast: setup description and initial results. Radiocarbon 63(4): 1273–1286.
Barrett, GT, Keaveney, E, Lindroos, A, Donnelly, C, Daugbjerg, T.S., Ringbom, Å, Olsen, J, Reimer, PJ (2021). Ramped pyroxidation: A new approach for radiocarbon dating of lime mortars. Journal of Archaeological Science 129: 105366.
Barrett, GT, Keaveney, E, Reimer, PJ, O’Neill-Munro, N, Barrett, MT, Mullarkey, P, Seaver, M (2021). Ramped pyroxidation radiocarbon dating of a preservative contaminated early medieval wooden bowl. Journal of Cultural Heritage 50:150-162.
Rosenheim, BE, Galy, V (2012) Direct measurement of riverine particulate organic carbon age structure. Geophysical Research Letters 39(19).