Keyword Analysis & Research: speleothems examples

wikipedia.org

https://en.wikipedia.org/wiki/Speleothem

WEBSpeleothems take various forms, depending on whether the water drips, seeps, condenses, flows, or ponds. Many speleothems are named for their resemblance to man-made or natural objects. Types of speleothems include: Dripstone is calcium carbonate in the form of stalactites or stalagmites examples

examples

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nps.gov

https://www.nps.gov/subjects/caves/speleothems.htm

WEBApr 27, 2022 · A well know example of waterfall flowstone is Frozen Niagara in Mammoth Cave. In places, flowstone can form on sedimentary rock, which is later washed away, leaving the flowstone as a canopy. Flowstone also forms in running streams where carbon dioxide degasses as water tumbles over rocks in a stream bed.

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wonderopolis.org

https://www.wonderopolis.org/wonder/what-are-speleothems

WEBCommon speleothems include dripstones (such as stalactites, stalagmites, straws, columns, or pillars), flowstones (such as shawls, curtains, draperies, or "cave bacon"), pore deposits (such as helictites and cave corals), and pool deposits (such as rimstone, dogtooth spar, cave pearls, shelftstone, or lily pads). examples

examples

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nps.gov

https://www.nps.gov/ozar/learn/education/speleothems.htm

WEBApr 10, 2015 · The speleothems with which most people are familiar are stalactites and stalagmites. Stalactites grow down from the cave ceiling, while stalagmites grow up from the cave floor. It’s easy to remember which is which: Stalactites have a "T" for top and stalagmites have a "G" for ground. Speleothems actually form because of water. examples

examples

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nps.gov

https://www.nps.gov/grba/learn/nature/speleothems-cave-formations.htm

WEBJul 28, 2020 · Twisted speleothems formed by water that seeps in tiny amounts through internal canals: Anthodites: Long, quill-like spikes composed mainly of aragonite: Shields: Two parallel plates of calcite separated by a thin crack; Over 300 present in Lehman Caves: Welts: Outward growths from fractures in speleothems; resemble rudimentary shields: … examples

examples

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nasa.gov

https://www.earthobservatory.nasa.gov/features/Paleoclimatology_Speleothems

WEBJun 28, 2005 · Speleothems: Cave rocks : ... “In southeast Brazil, for example, winter rain comes from the nearby Atlantic Ocean, but summer rain comes from the Amazon Basin,” says Stephen J. Burns, a geochemist at the University of Massachusetts. “The two have quite different oxygen isotope ratios.” By examining the ratios in the rocks, Burns and ...

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springer.com

https://link.springer.com/referenceworkentry/10.1007/978-3-030-44600-0_161-1

WEBNov 6, 2023 · Examples of speleothems from Sandkraal Cave near George on the south coast of South Africa. ( a ) Sample 428469 is a 27 cm long stalagmite that was found broken off on the floor of the cave. Positions of drilling for U-Th ages are visible on the sample and marked with letters.

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springer.com

https://link.springer.com/referenceworkentry/10.1007/978-1-4020-9212-1_225

WEBExamples of microbial speleothems – cave stromatolites encrusted by silica in the sandstone cave Cueva Charles Brewer, Chimantá Plateau, Venezuela. ( a – c) Mushroom-like stromatolites growing on the cave walls. ( d) …

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nature.com

https://www.nature.com/scitable/knowledge/library/drip-water-hydrology-and-speleothems-26394838/

WEBThe changing patterns of rainfall and snowmelt, when recharging ground water in karstified carbonate rocks, can be captured in speleothems via the hydrological behaviour of the drips. Aa Aa Aa....

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nckri.org

https://nckri.org/caves/formations/

WEBVery different examples are fins of rock that extend from floors, ceilings, and walls, where water eroded the surrounding rock to leave these blades of stone behind. In lava tubes, speleogens form in different ways, typically when the lava flow stops, cools, and hardens in a variety of shapes.

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