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Lesson 2 4 tree ring dating

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The circles look similar to the rings that appear when you throw a rock in a pond.These rings can tell us a lot about the tree they're found in and the tree's environment.If a tree is pushed over to one side by strong winds or other fallen trees, it will grow an uneven tree ring.The ring will be thicker on one side because the tree grows extra wood to help it remain upright.Thus, studying this variation leads to improved understanding of past environmental conditions and is the basis for many research applications of dendrochronology.A key distinction of dendrochronology is that all trees rings being analyzed are dated to their correct year of formation.It's pretty cool that a tree can tell us so much information without being able to talk!Not all trees have tree rings--only those that experience a growing season.

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Dendrochronology is an interdisciplinary science, and its theory and techniques can be applied to many applications. These research interests have in common the following objectives: Ring-counting does not ensure the accurate dating of each individual ring.

Various techniques are used to CROSSDATE wood samples to assure accurate dating.

The SKELETON PLOT is one method of crossdating tree rings. To summarize: Understanding these concepts will help you succeed at this website's skeleton plotting and crossdating exercises.

So how do dendrochronologists learn more than just age from tree rings?

Well, there are various types of rings, and each kind tells a different story. When you see a wide and even tree ring, the tree experienced a healthy growing season.