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Xuefeng Mountains
The Xuefeng Mountains () are a mountain range of China in western Hunan Hunan (, ; ) is a landlocked province of the People's Republic of China, part of the South Central China region. Located in the middle reaches of the Yangtze watershed, it borders the province-level divisions of Hubei to the north, Jiangxi to ... province. The Xuefeng Mountains lie in the heart of Hunan. They are an extension of the highlands in the province's west, which run northeast to southwest and form the eastern edge of the Guizhou Plateau. The composition of the mountains is mainly slate, quartzite, and sandstone. The mountains have numerous deep gorges formed by the many rivers that flow through it. References Mountain ranges of Hunan {{Hunan-geo-stub ...
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Hunan
Hunan (, ; ) is a landlocked province of the People's Republic of China, part of the South Central China region. Located in the middle reaches of the Yangtze watershed, it borders the province-level divisions of Hubei to the north, Jiangxi to the east, Guangdong and Guangxi to the south, Guizhou to the west and Chongqing to the northwest. Its capital and largest city is Changsha, which also abuts the Xiang River. Hengyang, Zhuzhou, and Yueyang are among its most populous urban cities. With a population of just over 66 million residing in an area of approximately , it is China's 7th most populous province, the fourth most populous among landlocked provinces, the second most populous in South Central China after Guangdong and the most populous province in Central China. It is the largest province in South-Central China and the fourth largest among landlocked provinces and the 10th most extensive province by area. Hunan's nominal GDP was US$ 724 billion (CNY 4.6 trillion) a ...
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Nan Mountains
The Nanling (), also known as the Wuling (), is a major mountain range in Southern China that separates the Pearl River Basin from the Yangtze Valley and serves as the dividing line between south and central subtropical zones. The main range of Nanling Mountains stretch west to east about from Guilin and Hezhou of the eastern Guangxi to Ganzhou of the southern Jiangxi, north to south about from Yongzhou and Chenzhou of the southern Hunan to Qingyuan and Shaoguan of the northern Guangdong; With its branches, the whole mountains run west to east . There are trough basins in the Nanling, the most of the western basins in Nanling Mountains are composed of limestone, where karst regions are located. the most of the eastern basins are made up of red sandstone, where are danxia landform areas. The Nanling are boundaries between the four provinces of Guangdong, Guangxi, Hunan and Jiangxi, and also the cultural boundaries, on the south of the mountains are Lingnan culture area.accor ...
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Slate
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. It is the finest grained foliated metamorphic rock. Foliation may not correspond to the original sedimentary layering, but instead is in planes perpendicular to the direction of metamorphic compression. The foliation in slate is called "slaty cleavage". It is caused by strong compression causing fine grained clay flakes to regrow in planes perpendicular to the compression. When expertly "cut" by striking parallel to the foliation, with a specialized tool in the quarry, many slates will display a property called fissility, forming smooth flat sheets of stone which have long been used for roofing, floor tiles, and other purposes. Slate is frequently grey in color, especially when seen, en masse, covering roofs. However, slate occurs in a variety of colors even from a single locality; for ex ...
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Quartzite
Quartzite is a hard, non- foliated metamorphic rock which was originally pure quartz sandstone.Essentials of Geology, 3rd Edition, Stephen Marshak, p 182 Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts. Pure quartzite is usually white to grey, though quartzites often occur in various shades of pink and red due to varying amounts of hematite. Other colors, such as yellow, green, blue and orange, are due to other minerals. The term ''quartzite'' is also sometimes used for very hard but unmetamorphosed sandstones that are composed of quartz grains thoroughly cemented with additional quartz. Such sedimentary rock has come to be described as orthoquartzite to distinguish it from metamorphic quartzite, which is sometimes called metaquartzite to emphasize its metamorphic origins. Quartzite is very resistant to chemical weathering and often forms ridges and resistant hilltops. The nearly pure silica conte ...
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Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ...
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China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and borders fourteen countries by land, the most of any country in the world, tied with Russia. Covering an area of approximately , it is the world's third largest country by total land area. The country consists of 22 provinces, five autonomous regions, four municipalities, and two Special Administrative Regions (Hong Kong and Macau). The national capital is Beijing, and the most populous city and financial center is Shanghai. Modern Chinese trace their origins to a cradle of civilization in the fertile basin of the Yellow River in the North China Plain. The semi-legendary Xia dynasty in the 21st century BCE and the well-attested Shang and Zhou dynasties developed a bureaucratic political system to serve hereditary monarchies, or dyna ...
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Yunnan–Guizhou Plateau
The Yunnan–Guizhou Plateau or Yungui Plateau () is a highland region located in southwest China. The region is primarily spread over the provinces of Yunnan and Guizhou. In the southwest, the Yungui is a true plateau with relatively flatter highland areas, while in the northeast, the Yungui is a generally mountainous area of rolling hills, gorges, and karst topography. Geography Definition Under the strictest definition, the Yungui Plateau stretches from the Red River Fault in Yunnan in the southwest to the Wuling Mountains in Hunan in the northeast. This plateau region includes most of eastern Yunnan and most of Guizhou. It is common, however, for much of the rest of Yunnan and surrounding highland areas to be referred to as part of the Yunnan–Guizhou Plateau even where there are no plateau-like characteristics. Under the broader definition of the Yungui Plateau, the provinces would include not only Yunnan and Guizhou but also Gulin County and the southernmost extremes ...
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