Start Dendrochronology carbon dating

Dendrochronology carbon dating

Generally, it is not possible to construct a complete sequence of tree rings back through the historical periods using only living trees.

One can use the amount of radiocarbon in the individual tree rings.

But for the specimen to be useful in extending the tree-ring chronology, the absolute calendar age of its rings must be determined.

The annual growth rings vary in thickness each year depending on environmental factors such as rainfall.

By matching ring-width patterns in a specimen of known age (starting with living specimens) to ring-width patterns in an older specimen, the proper placement of the older specimen is determined.