Siliceous speleothems in Ana Heva lava tube (Easter Island, Chile)
Easter Island or Rapa Nui, as it is known by the Polynesians, is located in the Pacific Ocean, at more than 3,500 km away from the Chilean coast. With a total surface of about 170 km2 and far more than 2,000 known lava-cave entrances, Rapa Nui has one of the world’s highest densities of lava tubes. In the present work, we have studied the mineralogical and geochemical characteristics of peculiars siliceous speleothems from Ana Heva lava tube, located in the western side of the island. This cave, together with other nearby lava tube, forms a subterraneous system with almost 2 km of interconnected passages, with average dimensions of about 4 m wide and 2 m high.
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| Main Authors: | , , , , , , , , |
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| Format: | comunicación de congreso biblioteca |
| Published: |
International Union of Speleology
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| Online Access: | http://hdl.handle.net/10261/122787 |
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