英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

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}]


请选择你想看的字典辞典：
单词字典翻译
tufa查看　tufa　在百度字典中的解释百度英翻中〔查看〕
tufa查看　tufa　在Google字典中的解释Google英翻中〔查看〕
tufa查看　tufa　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • 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 Tufa deposits are typically found in areas with specific geological and hydrological conditions, making them both unique and valuable for scientific study
  • What Is a Tufa and How Does It Form? - Biology Insights
    Tufa is a remarkable sedimentary deposit that forms in freshwater environments, representing a type of limestone This material is primarily defined by its highly porous and lightweight nature, contrasting it with denser, more compact carbonate rocks Tufa is typically found where calcium-rich water meets the atmosphere, often in springs, lakes, or streams The resulting deposits have long
  • What is tufa? - U. S. National Park Service
    I'm the Natural Resources Program Manager here 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
  • 26 Facts About Tufa
    Discover 26 fascinating facts about tufa, a unique geological formation Learn about its origins, types, and where you can find these natural wonders
  • The Tufas of Pyramid Lake, Nevada
    Tufa mounds formed when springs discharged from the bottom of Pyramid Lake, supplying calcium that combined with carbonate dissolved in lake water to form the mounds The thickest tufa deposits formed near lake-bottom sites of ground-water discharge, and at overflow elevations where the lake was held at near-constant levels for long periods of
  • Tufa - an overview | ScienceDirect Topics
    Tufa is defined as a freshwater carbonate formed by the physical and biochemical degassing of CO2 around carbonate-rich springs, streams, and pools, often precipitated alongside microorganisms such as cyanobacteria and algae
  • Tufa: Mineral information, data and localities. - mindat. org
    A limestone formed when carbonate minerals precipitate out of ambient temperature water A chemical sedimentary rock composed of calcium carbonate,
  • tufa | Art History Glossary
    Tufa was used extensively for temples, tombs and walls in Etruscan and Roman Republican times The Early Christian catacombs outside Rome were excavated primarily through tufa bedrock (Note: archaeological publications in English generally refer to this volcanic stone as “tufa”, but the correct geological term in English is “tuff”)
  • Talking Tufa | North American Rock Garden Society - NARGS
    The formation of tufa is in effect a reversal of this dissolving process in that groundwater rich in dissolved carbonate and carbon dioxide wells up from the ground and loses carbon dioxide due to warming, consumption by photosynthesizing plants, or agitation and evaporation When this happens, calcium is reprecipitated as the carbonate in the vicinity of the springs or seeps So tufa and





中文字典-英文字典  2005-2009