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I strongly suggest you follow all the steps at this site and then practice using the tutorial at step 12.

At this point, all of the increment cores have been crossdated and verified and you should have a ring width measurement for every ring in every core that you collected.

This is probably the most fundamental and important aspect of tree ring research.

Creationists routinely point to the approximate age of bristle-cone pines coinciding with an approximate biblical chronology for the flood. Hoehn thinks the bristle-cones are capable of exactly refuting an exact date of 4,000 years (YBP) for the flood.Cross-dating is the vital part of dendrochronology, but it is fraught with errors and guessing.You can make your research worse than useless if you mess up the cross-dating, and it is so easy to do.In this particular exercise, we wish to examine whether there is a relationship between local climate (precipitation) and tree rings using white oak (Quercus alba) in southeastern Ohio.Each field team should obtain the appropriate field supplies from their instructor and obtain 3 increment cores from white oak trees at the chosen field site.

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These data should be entered in to an Excel (or equivalent) spreadsheet for subsequent analysis.