Dendrochronology is the science of determining the age and origin of wood samples. Dendrochronologists are able to determine the age of a piece of wood by measuring tree ring spacing.
In the laboratory, tree ring widths are measured to an accuracy of 1/100 mm on cross-sections of wood samples. Reference values are collected in large databases. In this way, dendrochronologists can determine both the age and the approximate geographical origin of wood samples.
⬈ Of woods and forests