Start Other uses of radiocarbon dating

Other uses of radiocarbon dating

Question: But don't trees sometimes produce more than one growth ring per year? Answer: If anything, the tree-ring sequence suffers far more from missing rings than from double rings.

In the growth-ring analyses of approximately one thousand trees in the White Mountains, we have, in fact, found no more than three or four occurrences of even incipient multiple growth layers. 840) In years of severe drought, a bristlecone pine may fail to grow a complete ring all the way around its perimeter; we may find the ring if we bore into the tree from one angle, but not from another.

Hence at least some of the missing rings can be found.

Most of the tree-ring sequence is based on the bristlecone pine.

Other species of trees corroborate the work that Ferguson did with bristlecone pines.

Living organisms are constantly incorporating this C-14 into their bodies along with other carbon isotopes.

When the organisms die, they stop incorporating new C-14, and the old C-14 starts to decay back into N-14 by emitting beta particles.

It is easy to correlate the inner rings of a younger living tree with the outer rings of an older dead tree.