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A structure formed in a cave by the deposition of minerals from water, e.g., a stalactite or stalagmite.
- ‘The agencies enforce the 1988 Federal Cave Resources Protection Act, which does little to protect caves other than sending those caught removing speleothems to jail for up to a year.’
- ‘The most common type of speleothems studied for palaeoclimate are cylindrical stalagmites.’
- ‘Stalactites, stalagmites, and other speleothems - or cave formations - grow as water travels through rocks, dissolves minerals, and then seeps into caves and redeposits those substances.’
- ‘Water chemical data are important for palaeohydrological interpretations, but in this case we restrict the discussion to available water data from close to the studied speleothems.’
- ‘I am also aware that speleothems are rarely pure calcium carbonate, but often contain large amounts of impurities such as soil or clay particles or surface organic material.’
1950s: from Greek spēlaion cave + thema deposit.
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