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  2. Tufa - Wikipedia

    en.wikipedia.org/wiki/Tufa

    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 .

  3. Travertine - Wikipedia

    en.wikipedia.org/wiki/Travertine

    Tufa and travertine sediments visible on the Una river bed. Tufa and travertine deposits on Plitvice waterfalls. In the United States, the most well-known place for travertine formation is Yellowstone National Park, where the geothermal areas are rich in travertine deposits. [52] Wyoming also has travertines in Hot Springs State Park in ...

  4. Huanglong Scenic and Historic Interest Area - Wikipedia

    en.wikipedia.org/wiki/Huanglong_Scenic_and...

    Repeated glaciation events, the unique terrane structure, the formation of tufa, the stratum of carbonic acid rock, and climatic conditions such as Arctic-alpine sunlight have created this world-famous travertine landscape. Huanglong covers an area of 700 km 2 at an altitude between 1700m and 5588m. Major scenic areas include:

  5. Flowstone - Wikipedia

    en.wikipedia.org/wiki/Flowstone

    There are two common forms of flowstones, tufa and travertine. Tufa is usually formed via the precipitation of calcium carbonate, and is spongy or porous in nature. Travertine is a calcium carbonate deposit often formed in creeks or rivers; its nature is laminated, and it includes such structures as stalagmites and stalactites.

  6. Plitvice Lakes National Park - Wikipedia

    en.wikipedia.org/wiki/Plitvice_Lakes_National_Park

    These sedimentations are called tufa or travertine (both are called sedra or tuf in Croatian, apart from many other names like bigar or vapneni mačak). A distinctive feature of the Plitvice lakes is the fact that they do not represent separated, stationary waters. The lakes have always been seen as one composed system of lakes.

  7. Limescale - Wikipedia

    en.wikipedia.org/wiki/Limescale

    Limescale also forms as travertine or tufa in hard water springs. The colour varies from off-white through a range of greys and pink or reddish browns, depending on the other minerals present. Iron compounds give the reddish-browns.

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