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Paleo Slide Set: Climate and the Classic Maya Civilization
Oxygen Isotope record of Punta Laguna and Chichancanab, from Curtis et al. 1997
This slide compares the oxygen isotope record on the same species of gastropod between the two lake cores: Punta Laguna (left) and Chichancanab (right). Note that the Punta Laguna record is much higher resolution owing to higher sedimentation rates than Chichancanab. Within the error of the radiocarbon age models, the period of higher mean 18O values in Punta Laguna correlates with the interval of increasing sulfur and oxygen isotope values in Chichancanab.

Photo Credits:
David A. Hodell
Department of Geology, University of Florida
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Last Modified: 12 October 2001

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