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tufa    音标拼音: [t'ufə]
n. 凝灰岩;多孔凝灰岩

凝灰岩;多孔凝灰岩

tufa
n 1: a soft porous rock consisting of calcium carbonate
deposited from springs rich in lime [synonym: {tufa}, {calc-
tufa}]
2: hard volcanic rock composed of compacted volcanic ash [synonym:
{tuff}, {tufa}]


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  • Tufa - Wikipedia
    Tufa is a variety of limestone formed when carbonate minerals precipitate out of water in unheated rivers or lakes Geothermally heated hot springs sometimes produce similar (but less porous) carbonate deposits, which are known as travertine or thermogene travertine
  • Tufa : Properties, Formation, Uses - Geology Science
    Tufa is a type of porous limestone formed by the precipitation of calcium carbonate from water, often in environments where freshwater meets carbon-dioxide-rich waters, such as springs, streams, and lakes
  • What Is a Tufa and How Does It Form? - Biology Insights
    Tufa is a calcareous rock deposit composed mainly of calcium carbonate, specifically the mineral calcite or aragonite, precipitated from ambient-temperature waters It has high primary porosity, giving it a spongy, cellular, or reticulate texture
  • Tufa - Mono Lake
    The unusual rock formations that grace Mono Lake’s shores are known as tufa Tufa is beautiful, and it’s also important habitat, from nesting sites for Osprey and owls to underwater habitat for alkali flies
  • Mono Lake Tufa State Natural Reserve - California State Parks
    Ancient lake in the eastern Sierra Nevada, with spectacular views of the tufa towers formed over many years when the calcium-bearing freshwater springs and carbonate-rich lake water combined and precicipitated out as limestone
  • What is tufa? - U. S. National Park Service
    One of the interesting rock formations that you'll find in geothermal parks is similar or the same as what you see behind me and we call it tufa Now what is tufa and what sets it apart from say sandstone or limestone? Tufa is an evaporite, or at least that's what geologists call it
  • The Tufas of Pyramid Lake, Nevada
    Pyramid Lake is the site of some of the Earth's most spectacular tufa deposits Tufa is a rock composed of calcium carbonate (CaCO 3) that forms at the mouth of a spring, from lake water, or from a mixture of spring and lake water
  • 26 Facts About Tufa
    Tufa is a fascinating natural wonder that often leaves people curious But what exactly is tufa? Tufa is a type of limestone formed by the precipitation of carbonate minerals from ambient temperature water bodies This unique rock can be found near springs, lakes, and other water sources
  • Tufa: Intro to Geology Study Guide | Fiveable
    While both tufa and travertine are forms of limestone formed from calcium carbonate precipitation, they differ primarily in their formation environments Tufa typically forms in freshwater settings like lakes or springs, while travertine is associated with hot springs or geothermal environments
  • Tufa: Mineral information, data and localities. - mindat. org
    Etymol: Italian tufo A limestone formed when carbonate minerals precipitate out of ambient temperature water





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