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  2. List of karst areas - Wikipedia

    en.wikipedia.org/wiki/List_of_karst_areas

    Karst topography is a geological formation shaped by the dissolution of a layer or layers of soluble bedrock, usually carbonate rock such as limestone or dolomite, but also in gypsum. [1] It has also been documented for weathering -resistant rocks, such as quartzite , given the right conditions. [ 2 ]

  3. Hạ Long Bay - Wikipedia

    en.wikipedia.org/wiki/Hạ_Long_Bay

    Hạ Long Bay is a mature karst landscape developed during a warm, wet, tropical climate. The sequence of stages in the evolution of a karst landscape over a period of 20 million years requires a combination of several distinct elements including a massive thickness of limestone, a hot wet climate and slow overall tectonic up lift.

  4. List of World Heritage Sites in Vietnam - Wikipedia

    en.wikipedia.org/wiki/List_of_World_Heritage...

    The karst mountains are surrounded by Gâm River, Năng River, and Ba Bể Lake. Many caves have existed for over 10,000 years. Many caves have existed for over 10,000 years. The nominated area consists of four main parts: Ba Bể National Park, Nam Xuân Lạc Nature Reserve, Na Hang Nature Reserve, and Lâm Bình Protection Forest.

  5. Dong Van Karst Plateau Geopark - Wikipedia

    en.wikipedia.org/wiki/Dong_Van_Karst_Plateau_Geopark

    Dong Van Karst Plateau Geopark (Vietnamese: Cao nguyên đá Đồng Văn) is a geopark in northern Vietnam. It shares border with China in the north. It shares border with China in the north. It is a member of the UNESCO Global Geoparks Network and Asia Pacific Geoparks Network , officially since October 3, 2010.

  6. Phong Nha – Kẻ Bàng National Park - Wikipedia

    en.wikipedia.org/wiki/Phong_Nha_–_Kẻ_Bàng...

    According to the assessment of UNESCO, "The karst formation of Phong Nha-Kẻ Bàng National Park has evolved since the Palaeozoic (some 400 million years ago) and so is the oldest major karst area in Asia" and "Phong Nha displays an impressive amount of evidence of earth's history. It is a site of very great importance for increasing our ...

  7. Karst - Wikipedia

    en.wikipedia.org/wiki/Karst

    Global distribution of major outcrops of carbonate rocks (mainly limestone, except evaporites). The English word karst was borrowed from German Karst in the late 19th century, [6] which entered German usage much earlier, [7] to describe a number of geological, geomorphological, and hydrological features found within the range of the Dinaric Alps, stretching from the northeastern corner of ...

  8. Cúc Phương National Park - Wikipedia

    en.wikipedia.org/wiki/Cúc_Phương_National_Park

    Cúc Phương is situated in the foothills of the northern Annamite Range.The park consists of verdant karst mountains and lush valleys. Elevation varies from 150 meters (500 feet) to 656 m (2,152 feet) at the summit of May Bac Mountain, or Silver Cloud Mountain.

  9. Northern Vietnam lowland rain forests - Wikipedia

    en.wikipedia.org/wiki/Northern_Vietnam_lowland...

    The geological base features extensive limestone ('karst') mountains and valleys. Elevations range from sea level to 1,000 meters, with an average of 88 meters. [3] The primary wet evergreen forest has mostly been cleared in the past by humans; by one estimate only 10% of the original remains. [1]

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