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Kerulen River
Kherlen River (also known as Kerülen; ; ) is a 1,254 km river in Mongolia and China. It is also one of the two longest rivers in Mongolia, along with the Orkhon River. Course The river originates in the south slopes of the Khentii mountains, near the Burkhan Khaldun mountain in the Khan Khentii Strictly Protected Area, about northeast of Ulaanbaatar. This area constitutes the divide between the Arctic ( Tuul River) and Pacific (Kherlen, Onon) basins and is consequently named "Three River Basins". From there the Kherlen flows in a mostly eastern direction through the Khentii ''aimag''. Further downriver, it crosses the eastern Mongolian steppe past Ulaan Ereg and Choibalsan, entering China at and emptying into Hulun Nuur after another . The mean streamflow of Kherlen River has decreased by more than a half from 2000 to 2008 when compared with prior decades. Kherlen-Ergune-Amur In years with high precipitation, the normally exitless Hulun Lake may overflow at its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mongolian Language
Mongolian is the Prestige (sociolinguistics), principal language of the Mongolic languages, Mongolic language family that originated in the Mongolian Plateau. It is spoken by ethnic Mongols and other closely related Mongolic peoples who are native to modern Mongolia and surrounding parts of East Asia, East, Central Asia, Central and North Asia. Mongolian is the official language of Mongolia and Inner Mongolia and a recognized language of Xinjiang and Qinghai. The number of speakers across all its dialects may be 5–6 million, including the vast majority of the residents of Mongolia and many of the Mongols in China, ethnic Mongol residents of the Inner Mongolia of China. In Mongolia, Khalkha Mongolian is predominant, and is currently written in both Cyrillic script, Cyrillic and the traditional Mongolian script. In Inner Mongolia, it is dialectally more diverse and written in the traditional Mongolian script. However, Mongols in both countries often use the Latin script for conve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tuul River
The Tuul River or Tula River (; , , ; in older sources also Tola) is a river in central and northern Mongolia. Sacred to the Mongols, the Tuul is generally called the Hatan Tuul (, ; "Queen Tuul"). It is long and drains an area of . The ''Secret History of the Mongols'' (1240 AD) frequently mentions a "Black Forest of the Tuul River" where the palace of Ong Khan was located. The river originates in the Khan Khentii Strictly Protected Area in the Khentii Mountains, in the Erdene sum of Töv aimag. From there, it travels southwest until it reaches the territory of Ulaanbaatar. Its water runs through the southern part of the capital city of Mongolia, continuing in a western direction in large loops. When it meets the border of Bulgan aimag it turns north, running along that border. After it enters Selenge aimag, it discharges into the Orkhon River near the sum center of Orkhontuul sum. The Orkhon flows into the Selenge River, which flows into Russia and Lake Baikal. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Choibalsan (sum)
Choibalsan District () is a sum (district) of Dornod Province in eastern Mongolia. Sum center is 55 km North from the Dornod aimag capital Choibalsan city. Sum center has railway station Kherlengol on the Borzya (Russia) - Choibalsan city line. In 2009, its population was 2,691. Administrative divisions The district is divided into four bags A bag, also known regionally as a sack, is a common tool in the form of a floppy container, typically made of cloth, leather, bamboo, paper, or plastic. The use of bags predates recorded history, with the earliest bags being lengths of animal s ..., which are: * Enger Shand * Khukhnuur * Khulstai * Sumber Tourist attractions * Khökh Nuur * Yakhi Lake References {{Mongolia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhyolite
Rhyolite ( ) is the most silica-rich of volcanic rocks. It is generally glassy or fine-grained (aphanitic) in texture (geology), texture, but may be porphyritic, containing larger mineral crystals (phenocrysts) in an otherwise fine-grained matrix (geology), groundmass. The mineral assemblage is predominantly quartz, sanidine, and plagioclase. It is the extrusive equivalent of granite. Its high silica content makes rhyolitic magma extremely viscosity, viscous. This favors explosive eruptions over effusive eruptions, so this type of magma is more often erupted as pyroclastic rock than as lava flows. Rhyolitic ash-flow tuffs are among the most voluminous of continental igneous rock formations. Rhyolitic tuff has been used extensively for construction. Obsidian, which is rhyolitic volcanic glass, has been used for tools from prehistoric times to the present day because it can be shaped to an extremely sharp edge. Rhyolitic pumice finds use as an abrasive, in concrete, and as a soil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyroclastic Rock
Pyroclastic rocks are clastic rocks composed of rock fragments produced and ejected by explosive volcanic eruptions. The individual rock fragments are known as pyroclasts. Pyroclastic rocks are a type of volcaniclastic deposit, which are deposits made predominantly of volcanic particles. 'Phreatic' pyroclastic deposits are a variety of pyroclastic rock that forms from volcanic steam explosions and they are entirely made of accidental clasts. 'Phreatomagmatic' pyroclastic deposits are formed from explosive interaction of magma with groundwater. The word ''pyroclastic'' is derived from the Greek , meaning fire; and , meaning broken. Unconsolidated accumulations of pyroclasts are described as tephra. Tephra may become lithified to a pyroclastic rock by cementation or chemical reactions as the result of the passage of hot gases (fumarolic alteration) or groundwater (e.g. hydrothermal alteration and diagenesis) and burial, or, if it is emplaced at temperatures so hot that the soft gla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial planet, rocky planet or natural satellite, moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is chemically equivalent to slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed by geologists at about 20 volcanoes per year. Basalt is also an important rock type on other planetary bodies in the Solar System. For example, the bulk of the plains of volcanism on Venus, Venus, which cover ~80% of the surface, are basaltic; the lunar mare, lunar maria are plains of flood-basaltic lava flows; and basalt is a common rock on the surface of Mars. Molten basalt lava has a low viscosity due to its relatively low silica content (between 45% and 52%), resulting in rapidly moving lava flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soda Lake
A soda lake or alkaline lake is a lake on the strongly base (chemistry), basic side of neutrality, typically with a pH, pH value between 9 and 12. They are characterized by high concentrations of carbonate salts, typically sodium carbonate (and related salt complexes), giving rise to their alkalinity. In addition, many soda lakes also contain high concentrations of sodium chloride and other dissolved Salt (chemistry), salts, making them Salt lake, saline or Hypersaline lake, hypersaline lakes as well. High pH and salinity often coincide, because of how soda lakes develop. The resulting hypersaline and highly alkalic soda lakes are considered some of the most extreme aquatic environments on Earth. In spite of their apparent inhospitability, soda lakes are often highly Productivity (ecology), productive ecosystems, compared to their (pH-neutral) freshwater counterparts. Primary production#GPP and NPP, Gross primary production (photosynthesis) rates above (grams of carbon per squar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drainage System (geomorphology)
In geomorphology, drainage systems, also known as river systems, are the patterns formed by the streams, rivers, and lakes in a particular drainage basin. They are governed by the topography of land, whether a particular region is dominated by hard or soft rocks, and the gradient of the land. Geomorphologists and hydrologists often view streams as part of drainage basins (and tributary, sub-basins). This is the Topography, topographic region from which a stream receives Surface runoff, runoff, throughflow, and its saturated equivalent, groundwater flow. The number, size, and shape of the drainage basins varies and the larger and more detailed the topographic map, the more information is available. Drainage patterns Per the lie of Channel (geography), channels, drainage systems can fall into one of several categories, known as drainage patterns. These depend on the topography and geology of the land. All forms of transitions can occur between parallel, dendritic, and trellis patter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amur River
The Amur River () or Heilong River ( zh, s=黑龙江) is a perennial river in Northeast Asia, forming the natural border between the Russian Far East and Northeast China (historically the Outer and Inner Manchuria). The Amur ''proper'' is long, and has a drainage basin of .Амур (река в Азии) If including its main stem , the Argun, the Am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russia
Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders of Russia, land borders with fourteen countries. Russia is the List of European countries by population, most populous country in Europe and the List of countries and dependencies by population, ninth-most populous country in the world. It is a Urbanization by sovereign state, highly urbanised country, with sixteen of its urban areas having more than 1 million inhabitants. Moscow, the List of metropolitan areas in Europe, most populous metropolitan area in Europe, is the capital and List of cities and towns in Russia by population, largest city of Russia, while Saint Petersburg is its second-largest city and Society and culture in Saint Petersburg, cultural centre. Human settlement on the territory of modern Russia dates back to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argun River (Asia)
The Argun or Ergune ( zh, 额尔古纳河) is a long river that forms part of the eastern China–Russia border, together with the Amur. Its upper reaches are known as the Hailar River () in China. The Argun marks the border (established by the Treaty of Nerchinsk in 1689) between Russia and China for about , until it meets the Amur. Name The name derives from Buryat ''Urgengol'' 'wide river' (''urgen'' 'wide' + ''gol'' 'river'). Mongolian word "ergün" (in Traditional Mongolian alphabet) or "örgön" (in modern Mongolian) means "wide". Geography The river flows from the Western slope of the Greater Xing'an Range in China's Inner Mongolia, and forms the Chinese side of the two rivers that flow together to produce the Amur (Heilong). Its confluence with the Shilka at Ust-Strelka on the Russian side forms the Amur. The Argun is long including its upper course Hailar, and has a drainage basin of . [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hulun Lake
Hulun Lake (; ; ) or Dalai Lake (; ) is a large lake in the Inner Mongolia region of northern China. Description It is one of the five largest freshwater lakes in all of China, covering approximately 2,339 km2. In years with high precipitation, the normally exit−less endorheic lake may overflow at its northern shore, and the water will meet the Argun River (Ergune) after about . The lake is not far from Manzhouli, which is on a major passenger rail-line. Although there are several villages nearby, Manzhouli is the nearest city of notable size. As of 1995 annual fish production was about 7,000 tons, 100 tons of shrimp, 4 kilograms of pearls, 1.5 million crayfish. Hulun Lake is also one of the key reed production areas in China. Hulun Lake and its wetlands are a Biosphere reserve and a Ramsar site A Ramsar site is a wetland site designated to be of international importance under the Ramsar Convention,8 ha (O) *** Permanent 8 ha (P) *** Seasonal Intermittent < ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
