Tree ring dating worksheet
Ivana Zelníčková was born in the Moravian town of Zlín (formerly known as Gottwaldov), Czechoslovakia, the daughter of Miloš Zelníček, who was Czech, and Marie Francová.
Connections between seasonal conditions and types of wood will be reinforced and applied by students in this activity.
Each ring marks a complete cycle of seasons, or one year, in the tree's life.
In his Trattato della Pittura (Treatise on Painting), Leonardo da Vinci was the first person to mention that trees form rings annually and that their thickness is determined by the conditions under which they grew. S., Alexander Catlin Twining (1801–1884) suggested in 1833 that patterns among tree rings could be used to synchronize the dendrochronologies of various trees and thereby to reconstruct past climates across entire regions.
Dendrochronologists demand the assignment of a single calendar year to a single ring.
Various techniques are used to CROSSDATE wood samples to assure accurate dating.