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Yangbajain Hot Spring
The Yangbajain Geothermal Field (羊八井地热田) is a geothermal field near the town of Yangbajain in Damxung County, Tibet Autonomous Region, China. The fluid is heated by magmatic activity not far below the surface. It is a tourist attraction and also supplies steam to a major power plant with 25 MW capacity. Location The Yangbajain geothermal field is in a plateau basin on the southern slopes of the Nyainqentanglha Mountains, near to the Qinghai–Tibet Highway ( China National Highway 318) in Damxung County. The Qinghai–Tibet Railway, which terminates in Lhasa, also passes through Yangbajain. The field covers . It delivers natural thermal energy at the ground surface of up to 107,000 kilocalories per second. Yangbajain Geothermal Field is currently the largest proven geothermal field of its nature in China. It has an estimated power generation potential of 150,000 kW. Geology The Yangbajing Basin lies between the Nyainquentanglha Range to the northwest and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yangbajain
Yangbajain (also spelled Yangbajing; ) is a town approximately north-west of Lhasa, halfway to Damxung in the Tibet Autonomous Region of China. The town lies just south of the Nyainqêntanglha Mountains, in an upland lush green valley surrounded by the tents of nomads with grazing yak and sheep populating the hillside. It is the site Yangpachen Monastery, which was historically the seat of the Shamarpas of Karma Kagyü and the Yangbajing International Cosmic Ray Observatory. Geothermal field The area is famous for the Yangbajain Geothermal Field, which has been harnessed to produce electricity for the capital Lhasa. There is a thermoelectric power plant on the edge of the Yangbajain field covering 20–30 square kilometers. The power plant was established in 1977, and was the first development of geothermal power not only in Tibet but in the whole of China. The Yangbajain hot springs field is at an elevation of which makes it the highest elevation set of hot springs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quaternary
The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million years ago to the present. The Quaternary Period is divided into two epochs: the Pleistocene (2.58 million years ago to 11.7 thousand years ago) and the Holocene (11.7 thousand years ago to today, although a third epoch, the Anthropocene, has been proposed but is not yet officially recognised by the ICS). The Quaternary Period is typically defined by the cyclic growth and decay of continental ice sheets related to the Milankovitch cycles and the associated climate and environmental changes that they caused. Research history In 1759 Giovanni Arduino proposed that the geological strata of northern Italy could be divided into four successive formations or "orders" ( it, quattro ordini). The term "quaternary" was introduced by Jules Desnoye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamdrok Hydropower Station
The Yamdrok Hydropower Station (), also known as the Yamdrok Yumtso or Yamzhog Yumcog hydropower station, is a hydroelectric power station just north of Yamdrok Lake, about southwest of Qüxü. The power station is in the Lhoka (Shannan) Prefecture of the Tibet Autonomous Region, China. Opposition to using the lake, considered holy, delayed construction at first. The project ran into difficulties and was two years late, completed in 1998. Water is taken from the natural lake through long tunnels, without the need for a dam, and the power station discharges it into the Yarlung Tsangpo River. The design is a pumped-storage system, where off-peak power from other generators on the grid is used to pump water back into the lake when power is not needed. However, the river water has high levels of sediment and nitrates compared to the lake, and lower levels of minerals. Pumping may upset the lake's ecosystem, while not pumping may drain it. Plans Yamdrok Tso is the largest freshwate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lhasa
Lhasa (; Lhasa dialect: ; bo, text=ལྷ་ས, translation=Place of Gods) is the urban center of the prefecture-level city, prefecture-level Lhasa (prefecture-level city), Lhasa City and the administrative capital of Tibet Autonomous Region in Southwest China. The inner urban area of Lhasa City is equivalent to the administrative borders of Chengguan District (), which is part of the wider prefectural Lhasa City. Lhasa is the second most populous urban area on the Tibetan Plateau after Xining and, at an altitude of , Lhasa is one of the List of highest large cities, highest cities in the world. The city has been the religious and administrative capital of Tibet since the mid-17th century. It contains many culturally significant Tibetan Buddhism, Tibetan Buddhist sites such as the Potala Palace, Jokhang Temple and Norbulingka Palaces. Toponymy Lhasa literally translates to "place of gods" ( , god; , place) in the Standard Tibetan, Tibetan language. Chengguan literally tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duilong River
The Duilong River, or Duilong Qu (Tibetan: Toelung; ), is a right tributary of the Lhasa River, which it enters just below the city of Lhasa, Tibet, China. The river is about in length. Water quality may be compromised by dissolved substances including arsenic from geothermal springs. Course The Duilong is the largest tributary of the Lhasa River, with a length of and a basin area of . The valley of the Duilong River leads south to the Lhasa River, and is contained by two ridges of the Nianqing Tanggula Mountains. The Duilong has hydro-electrical power generation capacity of 4,000 KW. The non-monsoon season lasts from October to May each year, and the monsoon season from June to October. 80% of the precipitation is in the monsoon season, when warm and moist air is transported to the Tibet Plateau from the south Indian Ocean. The Qinghai–Tibet Railway approaches Lhasa from the northwest. It descends from the Amdo grasslands to Nagchu and Damshung, and then follows the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sodium Chloride
Sodium chloride , commonly known as salt (although sea salt also contains other chemical salts), is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. With molar masses of 22.99 and 35.45 g/mol respectively, 100 g of NaCl contains 39.34 g Na and 60.66 g Cl. Sodium chloride is the salt most responsible for the salinity of seawater and of the extracellular fluid of many multicellular organisms. In its edible form, salt (also known as ''table salt'') is commonly used as a condiment and food preservative. Large quantities of sodium chloride are used in many industrial processes, and it is a major source of sodium and chlorine compounds used as feedstocks for further chemical syntheses. Another major application of sodium chloride is de-icing of roadways in sub-freezing weather. Uses In addition to the familiar domestic uses of salt, more dominant applications of the approximately 250 million tonnes per year production (2008 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batholith
A batholith () is a large mass of intrusive igneous rock (also called plutonic rock), larger than in area, that forms from cooled magma deep in Earth's crust. Batholiths are almost always made mostly of felsic or intermediate rock types, such as granite, quartz monzonite, or diorite (see also ''granite dome''). Formation Although they may appear uniform, batholiths are in fact structures with complex histories and compositions. They are composed of multiple masses, or ''plutons'', bodies of igneous rock of irregular dimensions (typically at least several kilometers) that can be distinguished from adjacent igneous rock by some combination of criteria including age, composition, texture, or mappable structures. Individual plutons are solidified from magma that traveled toward the surface from a zone of partial melting near the base of the Earth's crust. Traditionally, these plutons have been considered to form by ascent of relatively buoyant magma in large masses called ''p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Himalayan Geothermal Belt
The Himalayan Geothermal Belt (HGB) is a region that extends for through India, Tibet, Yunnan, Myanmar and Thailand, and that contains many geothermal fields. Location The Himalayan Geothermal Belt was formed as a result of the collision of the Indian Plate with the Eurasian Plate, which created the Himalayas. The belt is more than wide. The HGB has an extension to the westward that shows in warm or hot springs in the Peshawar region of Pakistan. These are clustered along the Main Karakoram Thrust, Main Mantle Thrust and Main Central Thrust. Some authors consider that the belt extends yet further west and should be called the Mediterranean-Himalayan Geothermal Belt. Mechanisms Heat transfer in the HGB mainly occurs in "heat bands", wide, within which there are at least 600 associated geothermal systems. These may be interpreted as segments of slip lines caused by deformation of the ductile crust in the Asian tectonic plate. In the eastern Himalayas the heat bands transfer t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yanshanian
The Yanshanian movement were first recognized by Weng WH (1927,1929) in the Yansan area of China (116°-119.5°N, 40°-42°E). Since then, the Yanshanian has been used as a local term in China for tectonic events which occurred mainly during the Jurassic Period. Later, Ding WJ (1929), Huang JQ (1945,1960) and Zhao ZF (1959) extended the term to cover tectonic events which occurred throughout China during the Jurassic and Cretaceous tectonic periods. However, it was soon realized that tectonic and magmatic events in the Jurassic and Cretaceous were very different. In the Jurassic there are NNE-NE trending folds and thrusts related to transpressional tectonics, and WNW trending normal faults with some strike-slip movement and widespread calc-alkaline magmatism Magmatism is the emplacement of magma within and at the surface of the outer layers of a terrestrial planet, which solidifies as igneous rocks. It does so through magmatic activity or igneous activity, the production, intrusi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neogene
The Neogene ( ), informally Upper Tertiary or Late Tertiary, is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period Mya. The Neogene is sub-divided into two epochs, the earlier Miocene and the later Pliocene. Some geologists assert that the Neogene cannot be clearly delineated from the modern geological period, the Quaternary. The term "Neogene" was coined in 1853 by the Austrian palaeontologist Moritz Hörnes (1815–1868). During this period, mammals and birds continued to evolve into modern forms, while other groups of life remained relatively unchanged. The first humans (''Homo habilis'') appeared in Africa near the end of the period. Some continental movements took place, the most significant event being the connection of North and South America at the Isthmus of Panama, late in the Pliocene. This cut off the warm ocean currents from the Pacific to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damxung County
Damxung is a county of Lhasa City, lying to the north of its main center of Chengguan, in the Tibet Autonomous Region of the People's Republic of China. Its administrative seat is Damquka. The terrain is rugged, including the western Nyenchen Tanglha Mountains, with their highest peak rising to . As of 2013 the population was 40,000, with most of the people engaged in animal husbandry. History Damxung means "select pasture" in the Tibetan language. The Damxung steppe was gifted by the 5th Dalai Lama to Güshi Khan during the latter's reign. A number of Mongol cavalry soldiers settled down in the area, who became known as Mongol Eight Banners of Dam. After Güshi Khan's death in 1679, the area was possessed by Ngakpa Tratsang of Sera Monastery. From 1715 to 1912, the former Mongol Eight Banners land was directly administered by the Qing Dynasty Amban. Following the Qing's collapse, the area once again came under possession of Sera Monastery, which established Damxung Dzong u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
