Simulate radio carbon dating
In this study, we collected palaeosoil samples from pits dug at archaeological sites in China.
A new, improved method was developed to extract phytoliths from soils.
This article gives an overview of the main model components used in chronological analysis, their mathematical formulation, and examples of how such analyses can be performed using the latest version of the Ox Cal software (v4).
Many such models can be put together, in a modular fashion, from simple elements, with defined constraints and groupings.
Given the non-monotonic form of the radiocarbon calibration curve, the precision of single (super 14) C dates on the calendar timescale will always be limited.In other cases, the commonly used "uniform phase" models might not be appropriate, and ramped, exponential, or normal distributions of events might be more useful.When considering analyses of these kinds, it is useful to be able run simulations on synthetic data.Phytolith-occluded carbon (Phyt OC) has been demonstrated to be an important form of carbon sequestration.They investigated the potential of Phyt OC for radiocarbon analysis, and found that the measurements obtained using phytoliths were older than those expected sediments developed from the soil.
We compared the dating of phytoliths and other materials (e.g., charcoal and plant seeds) recovered at the same depth from seven pits at six archaeological sites in China.