My current research interests focus on: Enquiries: If you are interested in studying for a Ph D in one of these research areas, please make informal enquiries via [email protected] out more information about Geography Ph Ds including more research areas, how to apply, funding and entry requirements.Slope changes and “wiggles” in the calibration curve can result in either very precise estimates of the calendar date or only very broad date estimates.Careful selection of datable material and the chronological constraints imposed, for example, by stratigraphic relationships can result in much better chronological control than archaeologists would have imagined only a decade ago.
Stratigraphy is based on the law of superposition--like a layer cake, the lowest layers must have been formed first.
After 5,730 years, half (or 50 carbon-14 atoms) would remain.
After another 5,730 years only half of those 50 (or 25 carbon-14 atoms would remain.) Think of the red ink molecules slowly disappearing at the same rate.
Archaeologists use many different techniques to determine the age of a particular artifact, site, or part of a site.
Two broad categories of dating or chronometric techniques that archaeologists use are called relative and absolute dating.