Definition of speleothem in English:

speleothem

noun ˈspiːlɪə(ʊ)θɛmˈspēlēəˌTHem

Geology

A structure formed in a cave by the deposition of minerals from water, e.g. a stalactite or stalagmite.
〔地质〕洞穴堆积物（例如钟乳石、石筍）
Example sentencesExamples
- 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.
- 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.
- The most common type of speleothems studied for palaeoclimate are cylindrical stalagmites.
- 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.
- 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.

Origin

1950s: from Greek spēlaion 'cave' + thema 'deposit'.

Definition of speleothem in US English:

speleothem

nounˈspēlēəˌTHem

Geology

A structure formed in a cave by the deposition of minerals from water, e.g. a stalactite or stalagmite.
〔地质〕洞穴堆积物（例如钟乳石、石筍）
Example sentencesExamples
- 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.
- 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.
- 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.
- 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.
- The most common type of speleothems studied for palaeoclimate are cylindrical stalagmites.

Origin

1950s: from Greek spēlaion ‘cave’ + thema ‘deposit’.

单词	speleothem
释义	Definition of speleothem in English: speleothem noun ˈspiːlɪə(ʊ)θɛmˈspēlēəˌTHem Geology A structure formed in a cave by the deposition of minerals from water, e.g. a stalactite or stalagmite. 〔地质〕洞穴堆积物（例如钟乳石、石筍） Example sentencesExamples 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. 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. The most common type of speleothems studied for palaeoclimate are cylindrical stalagmites. 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. 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. Origin 1950s: from Greek spēlaion 'cave' + thema 'deposit'. Definition of speleothem in US English: speleothem nounˈspēlēəˌTHem Geology A structure formed in a cave by the deposition of minerals from water, e.g. a stalactite or stalagmite. 〔地质〕洞穴堆积物（例如钟乳石、石筍） Example sentencesExamples 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. 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. 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. 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. The most common type of speleothems studied for palaeoclimate are cylindrical stalagmites. Origin 1950s: from Greek spēlaion ‘cave’ + thema ‘deposit’.
随便看	natation natational natatorial natatorial natatorium natatoriums natatory natatory natch natch-bone Natchez NATE nated nates natess NATFHE nath Nath nathalie sarraute nathanael greene nathanael west nathan bedford forrest nathan clifford nathan hale nathaniel currier 编码编磬编程编纂编组编织编结编绘编缀编者 Report Reportage Reporter Reporter Reportgeschäft Reportsatz REP(Republikaner) Represalien Repressalie Reproduktion