A dendrochronologist studies growth rings to determine dates ... They then use these tree-ring chronologies to date wooden objects, to determine a general area in which the wood grew, and to ...

Dendrochronologists showed that an ancient wooden road uncovered in southwestern ... lies in a tree's unique pattern of growth rings. The rings form a kind of fingerprint—actually, with its ...

One of the most read chronologies using tree rings occurs in Aldo Leopold’s book, “A Sand County Almanac,” published and ...

carbon isotopes in the growth rings of trees. Her team dissected tree rings from ancient wood samples, burned the cellulose — the main component of wood — to determine the radiocarbon content ...