scientific method of dating tree rings

Archaeology: Theories, Methods and Practice 7th ed. This enormous and comprehensive data set is fundamental to both European and North American studies of the palaeoclimate and prehistory 8. Although the exact dates Douglass published have long since been refined, his general dating has not changed: the vast majority of cliff dwellings were built and occupied in the mids. Shvedov, F. The J. Bibcode : NatCo Using tree rings, scientists have estimated many local climates for hundreds to thousands of years previous.

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