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Paleo Slide Set: Climate and the Classic Maya Civilization
Example of ostracod shell, genus Candona
Once the cores are split, the sample is washed over a 63-micron sieve and shell specimens are picked using a binocular microscope. The oxygen isotope ratios of ostracods (shown here), which precipitate shells or carapaces of calcite, are then measured.

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

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