Abstract
Ten climate periods found in stable isotope ratios of oxygen and hydrogen, measured in 1,800 yr of Japanese cedar rings, agree with climate periods found in 800 yr of Greenland ice and with periods computed from the tidal stresses of the Sun–Moon–Earth system, and with periods found in the 14C record of the bristlecone pine sequence of southern California. The Greenland oxygen ratios have previously been found to have opposite phase to the 14C ratios of the bristlecones, and we have found also an opposite phase between oxygen and hydrogen ratios in the Japanese cedar on the one hand and 14C in bristlecones on the other hand.
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Libby, L., Pandolfi, L. Climate periods in tree, ice and tides. Nature 266, 415–417 (1977). https://doi.org/10.1038/266415a0
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DOI: https://doi.org/10.1038/266415a0
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