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Villars Cave, France Doll's Theater, Carlsbad Caverns Liang Luar Cave, Indonesia

Speleothems are mineral deposits formed from groundwater within underground caverns. Stalagmites, stalactites, and other forms may be annually banded or contain compounds that can be radiometrically dated. Thickness of depositional layers or isotopic records can be used to determine past climate conditions.

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Investigators who wish to contribute their data to our speleothem archive can find information on contributing below. Data and study description information can be contributed by emailing completed data contribution templates to

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Additional sources of data and information on speleothems.