Bomb spike dating

FileRadiocarbon bomb - pedia

C dating has been used to determine a detailed age-depth model for a 1-m sediment section collected from a salt marsh in Poole Harbour, southern England. Pine Pollen in intertidal sediments from Poole Harbour, UK; implications for late-Holocene sediment accretion rates and sea-level rise.

Radiocarbon bomb spike reveals biological effects of.

These data were compared with the chronology obtained from C), and both the rising and falling limbs of the atmospheric ‘bomb spike’ are identified. Quaternary International, 55, 3–16.), and conclude that ‘bomb spike’ Pb chronologies for dating sediment deposition in salt-marsh environments.

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Five pre-bomb samples were analysed using multi-target hh-precision 2‰ AMS analysis, and after the replicates were combined the one-sma uncertainty was as low as ± 9 C samples, were calibrated using CALIB 5.0 and the chronology constrained using the ‘prior knowledge’ of independent age markers obtained from the analysis of pollen and spheroidal carbonaceous particle (SCPs). In addition, we demonstrate how the use of hh-precision AMS analysis has the potential for reducing some of the uncertainties involved in the hh-resolution dating of recent salt-marsh sediments.

International Journal of Speleology - USF Scholar Commons

We use our new chronology to confirm the existence of an acceleration in sedimentation rates in Poole Harbour during the last 100 yr previously reported for this site by Long et al.


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