Problems encountered with the 14c dating of peat
However, it is removed from all samples prior to dating in order to remove any carbonates which could contaminate samples.
The variations in the ages obtained for the humic acid and corresponding humin fractions range from the humin fraction being 630 years older than the humic acid (SRR-4029) to the humic acid being 1210 years older than the humin fraction (SRR-4007), even when a two sigma confidence is allowed.
A tree's growth rate changes in a predictable pattern throughout the year in response to seasonal climate changes, resulting in visible growth rings.
location NN420240 ( 5) Large flat catchment area – Stob Lúib and Creag Loisgte (Figure 1).
In 1859, the German-American Jacob Kuechler (1823–1893) used crossdating to examine oaks (Quercus stellata) in order to study the record of climate in western Texas.
During the first half of the 20th century, the astronomer A. Douglass founded the Laboratory of Tree-Ring Research at the University of Arizona.
WMD is most successful during periods with major excursions in the 14C calibration curve (e.g., in one case WMD could narrow down confidence intervals from 230 to 36 yr).
A highly organic soil that results when waterlogged anaerobic conditions suppress the degradation of vegetation. Measurement of the radiocarbon content in samples of either bulk peat or carbon-bearing fractions isolated from bulk peat by physical and/or chemical treatments.