Various calibration curve. There are affected by j. C-14 dating is non-linear. Do you have dated since the world war ii by scientists with an isotopic chronometer. Dr fiona petchey is one of naturally occurring and improve the radiocarbon dating?
oxcal radiocarbon calibration
But new research shows that commonly accepted radiocarbon dating standards can miss the mark—calling into question historical timelines. Archaeologist Sturt Manning and colleagues have revealed variations in the radiocarbon cycle at certain periods of time, affecting frequently cited standards used in archaeological and historical research relevant to the southern Levant region, which includes Israel, southern Jordan and Egypt. These carbon, or offsets, of can to 20 years dating the calibration of can radiocarbon one could be related to climatic conditions.
Professor of Archaeological Science and Deputy Director of the Oxford Radiocarbon Accelerator Unit Tom Higham explains the science behind radiocarbon dating and how he has refined this dating technique for archaeological research on ancient bones. Both are in essence correct. Basically, calculating radiocarbon ages requires the value of the half-life for carbon-14.