Dendrochronology and radiocarbon dating

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For the entire period of a tree's life, a year-by-year record or ring pattern is formed that reflects the climatic conditions in which the tree grew.

Most of the C in the atmosphere originates in the action of cosmic rays on Nitrogen in the upper atmosphere.In reality, there are difficulties associated with the processing and measurement of certain materials, which reduces the applicability of this technique.For example, bone samples without enough remaining collagen had to be disregarded in a radiocarbon dating exercise targeting the Cotswold-Severn Long Barrows (Smith & Brickley 2006).Trees from the same region will tend to develop the same patterns of ring widths for a given period., -logia), or tree-ring dating, is the scientific method of dating based on the analysis of patterns of tree rings, also known as growth rings.

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