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speleothem |
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speleothem [′spē·lē·ə‚them] (geology) A secondary mineral deposited in a cave by the action of water. Also known as cave formation. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Stalactites, stalagmites, and other cave deposits form when water picks up minerals as it percolates through sediments and then seeps into a cave. These gooey cave deposits aren't stalactites (mineral deposits that hang from a cave's ceiling). He and his coworkers add that it's still possible that the Liujiang discoveries came either from a cave deposit dating from around 68,000 years ago or from one dating to more than 153,000 years ago. |
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