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Shaanxi Tiankeng Cluster
Shaanxi tiankeng cluster is a group of 19 karst sinkholes in Shaanxi Province, China. The discovery was made in February 2016 and announced by geologists on November 24, 2016.Hong'e, Mo (2016-11-25)"Giant karst sinkhole cluster discovered in NW China" Ecns.cn. Located within a 200 km-long karst landform belt in the southwest part of the province near Hanzhong City, the cluster is one of the largest on Earth. It includes forty-nine sinkholes and more than fifty funnels ranging from 50–100 metres in diameter. The area is in the Qinling-Bashan Mountains, spread over Hanzhong city's counties of Ningqiang, Nanzheng, Xixiang and Zhenba. It is the northernmost example of the humid tropical and subtropical karst landform area, lying roughly between the latitudes of 32 and 33 degrees. From October 25 to 28, 2016, a team surveyed the region. The team was made up of China's resource authorities as well as experts from the UNESCO International Research Center on Karst, the Internat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shaanxi
Shaanxi (alternatively Shensi, see #Name, § Name) is a landlocked Provinces of China, province of China. Officially part of Northwest China, it borders the province-level divisions of Shanxi (NE, E), Henan (E), Hubei (SE), Chongqing (S), Sichuan (SW), Gansu (W), Ningxia (NW) and Inner Mongolia (N). Shaanxi covers an area of over with about 37 million people, the 16th highest in China. Xi'an – which includes the sites of the former Capitals of China, Chinese capitals Fenghao and Chang'an – is the Xi'an, provincial capital as well as the largest city in Northwest China and also one of the oldest cities in China and the oldest of the Historical capitals of China, Four Great Ancient Capitals, being the capital for the Western Zhou, Western Han, Sima Jin, Jin, Sui dynasty, Sui and Tang dynasty, Tang List of Chinese dynasties, dynasties. Xianyang, which served as the Qin dynasty capital, is just north across Wei River. The other Prefectures of China, prefecture-level pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UNESCO
The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) aimed at promoting world peace and security through international cooperation in education, arts, sciences and culture. It has 193 member states and 12 associate members, as well as partners in the non-governmental, intergovernmental and private sector. Headquartered at the World Heritage Centre in Paris, France, UNESCO has 53 regional field offices and 199 national commissions that facilitate its global mandate. UNESCO was founded in 1945 as the successor to the League of Nations's International Committee on Intellectual Cooperation.English summary). Its constitution establishes the agency's goals, governing structure, and operating framework. UNESCO's founding mission, which was shaped by the Second World War, is to advance peace, sustainable development and human rights by facilitating collaboration and dialogue among nations. It pursues this objective t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karst Formations Of China
Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant rocks, such as quartzite, given the right conditions. Subterranean drainage may limit surface water, with few to no rivers or lakes. However, in regions where the dissolved bedrock is covered (perhaps by debris) or confined by one or more superimposed non-soluble rock strata, distinctive karst features may occur only at subsurface levels and can be totally missing above ground. The study of ''paleokarst'' (buried karst in the stratigraphic column) is important in petroleum geology because as much as 50% of the world's hydrocarbon reserves are hosted in carbonate rock, and much of this is found in porous karst systems. Etymology The English word ''karst'' was borrowed from German in the late 19th century, which entered German much earlier. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Institute Of Karst Geology Of The Chinese Academy Of Sciences
''The'' () is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Institute Of Geology Of The Czech Academy Of Sciences
''The'' () is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Czech Speleological Society
''The'' () is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Union Of Speleology
International Union of Speleology (french: links=no, Union Internationale de Spéléologie, UIS) is a scientific non-governmental organization dedicated to the international promotion and coordination of cave and karst research. Founded in 1965, UIS is a member of the International Science Council in Paris and cooperates with UNESCO. In 2021-2022, UIS organized the ''International Year of Caves and Karst''. History The international speleological community, mostly Europeans, agreed in a meeting in 1949 in Valence-sur-Rhone, France, to hold international speleological congresses beginning in Paris in 1953. These efforts continued during the Cold War. At the 4th International Congress of Speleology in Postojna/Ljubljana (1965), a group of speleologists proposed to establish an association that would bring together scientists and cavers on both sides of the Iron Curtain and coordinate their activities. At the closing ceremony of this congress, the UIS was finally launched. Howe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UNESCO International Research Center On Karst
The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) aimed at promoting world peace and security through international cooperation in education, arts, sciences and culture. It has 193 member states and 12 associate members, as well as partners in the non-governmental, intergovernmental and private sector. Headquartered at the World Heritage Centre in Paris, France, UNESCO has 53 regional field offices and 199 national commissions that facilitate its global mandate. UNESCO was founded in 1945 as the successor to the League of Nations's International Committee on Intellectual Cooperation.English summary). Its constitution establishes the agency's goals, governing structure, and operating framework. UNESCO's founding mission, which was shaped by the Second World War, is to advance peace, sustainable development and human rights by facilitating collaboration and dialogue among nations. It pursues this objective th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhenba County
Zhenba County () is a county under the administration and in the southeast corner of Hanzhong City, in the southwest of Shaanxi province, China. The southernmost county-level division of Hanzhong, it borders Sichuan province to the south. Administrative divisions As of 2020, Zhenba County is divided into 1 subdistrict and 19 towns. ;Subdistricts * () ;Towns Climate Transportation *China National Highway 210 China National Highway 210 (G210) runs from Mandula in Baotou, Inner Mongolia to Fangchenggang, Guangxi. It is 3,097 kilometres in length and runs south from Baotou and passes through the province-level divisions of Shaanxi, Sichuan, Chongqing, Gui ... References County-level divisions of Shaanxi Hanzhong {{Shaanxi-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karst
Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant rocks, such as quartzite, given the right conditions. Subterranean drainage may limit surface water, with few to no rivers or lakes. However, in regions where the dissolved bedrock is covered (perhaps by debris) or confined by one or more superimposed non-soluble rock strata, distinctive karst features may occur only at subsurface levels and can be totally missing above ground. The study of ''paleokarst'' (buried karst in the stratigraphic column) is important in petroleum geology because as much as 50% of the world's hydrocarbon reserves are hosted in carbonate rock, and much of this is found in porous karst systems. Etymology The English word ''karst'' was borrowed from German in the late 19th century, which entered German much earlier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xixiang County
Xixiang County () is a county under the administration of Hanzhong City, in the southwest of Shaanxi province, China, bordering Sichuan province to the southwest. Its administrative center, Xixiang, formerly known as Hsihsiang, lies on the Muma River. The county contains fourteen towns, eleven townships, and covers an area of . Administrative divisions As 2019, Xixiang County is divided to 2 subdistricts and 15 towns. ;Subdistricts * Chengbei Subdistrict () * Chengnan Subdistrict () ;Towns Climate Economy In the 19th century and early 20th century the area produced silk which was exported to Gansu. Transportation Xixiang is served by the Yangpingguan–Ankang Railway The Yangpingguan–Ankang railway or Yang'an railway (), is a single-track, electrified railroad in China between Yangpingguan and Ankang in southern Shaanxi Province. The line, in length, follows the upper reaches of the Han River and was .... The Muma River supports small boat traffic. Notes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanzheng County
Nanzheng District (), formerly Nanzheng County (), is a district of the city of Hanzhong, Shaanxi province, China, bordering Sichuan Sichuan (; zh, c=, labels=no, ; zh, p=Sìchuān; alternatively romanized as Szechuan or Szechwan; formerly also referred to as "West China" or "Western China" by Protestant missions) is a province in Southwest China occupying most of the ... province to the south. Administrative divisions As 2019, Nanzheng District is divided to 2 subdistricts and 20 towns. ;Subdistricts * Hanshan Subdistrict () * Zhongsuoying Subdistrict () ;Towns Climate References External linksOfficial website of Nanzheng Government Districts of Shaanxi Hanzhong {{Shaanxi-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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