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Dendrochronology (en.wikipedia.org)

submitted 2 weeks ago by [email protected] to c/[email protected]

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[–] [email protected] 2 points 2 weeks ago

Within a particular core, the lines can be calibrated (set to a known base point) by radiocarbon dating, comparing to known marker events such as a fire, and also integrating records across trees to create stitched meta-records. Doing so they can also start to estimate the "instrumental" error of the tree itself, since trees can just stop growth entirely sometimes.