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Needle Hill
Needle Hill or Cham Shan () is a mountain in New Territories, Hong Kong. It has an altitude of 532 m. This is a part of a popular hiking route including Grassy Hill and Tai Mo Shan. The mountain got its name due to the resemblance of a needle by its peak. Geography At around 400 above sea level, it forms a needle-like shape at its peak. The granitic rocks that form this hill is part of a granitic ridge that starts at the Tolo Channel and ends in Kwai Chung. Needle Hill is located within Shing Mun Country Park. Stage 7 of the MacLehose Trail includes the summit of Needle Hill. The Shing Mun Tunnels pass through the base of Needle Hill. The Lower Shing Mun River can also be found at the base of the hill. Geology Needle Hill is mainly composed of granite. Wolframite, molybdenite and quartz ores can be found at the base of the hill. History Wolframite, a tungsten ore, was discovered at Needle Hill in 1935. It was mined there from 1938 to 1967. The mines used to obtain wolframite o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Territories
The New Territories (N.T., Traditional Chinese characters, Chinese: ) is one of the three areas of Hong Kong, alongside Hong Kong Island and Kowloon. It makes up 86.2% of Hong Kong's territory, and contains around half of the population of Hong Kong. Historically, it is the region described in the The Convention for the Extension of Hong Kong Territory, Convention for the Extension of Hong Kong Territory. According to that treaty, the territories comprise the mainland area north of Boundary Street on the Kowloon Peninsula and south of the Sham Chun River (which is the border between Hong Kong and mainland China), as well as over 200 Outlying Islands, Hong Kong, outlying islands, including Lantau Island, Lamma Island, Cheung Chau, and Peng Chau in the territory of Hong Kong. Later, after New Kowloon was defined from the area between the Boundary Street and the Kowloon Ranges spanned from Lai Chi Kok to Lei Yue Mun, and the extension of the urban areas of Kowloon, New Kowloon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shing Mun River
The Shing Mun River (Chinese: 城門河) or Shing Mun River Channel (Chinese: 城門河道) is a river in Sha Tin, Hong Kong. History The original Shing Mun River began at Needle Hill, and flowed into the former Tide Cove (Sha Tin Hoi), a shallow bay. In the 1970s, Tide Cove was reclaimed and turned to Sha Tin New Town. The river was extended through a 7 km long, 200 m wide artificial channel in the middle of the area to flow into Tolo Harbour. Other rivers that had originally flowed into Tide Cove are now tributaries of Shing Mun River in the form of concreted nullahs. The Shing Mun River channel runs from the Tai Wai area, through the Sha Tin town centre to the Tolo Harbour. It has three main tributaries, namely Tai Wai Nullah, Fo Tan Nullah and Siu Lek Yuen Nullah. Along the Shing Mun River are high-rise residential, commercial and industrial buildings with numerous village-type developments such as City One Shatin and Wo Che Estate scattered around. Several bridg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining In Hong Kong
Mining in Hong Kong refers to mining activities in Hong Kong. Despite its small size, Hong Kong has a relatively large number of mineral deposits. Although some have been mined commercially, there are currently no commercial mining operations in Hong Kong. Mines The four main mines in Hong Kong are the Lin Ma Hang Lead Mine (mainly galena for lead), the Needle Hill Tungsten Mine (Wolframite and Molybdenite), the Ma On Shan Iron Mine (magnetite for iron), and the The Brothers (islands), Hong Kong, West Brother Graphite Mine (graphite). Historical mines in Hong Kong include: (The figures indicate the length of the tunnels) * Lin Ma Hang 0.9 km * Needle Hill 3.4 km * Lin Fa Shan, Tsuen Wan 2.3 km * Ma On Shan (peak), Ma On Shan 23.5 km * The Brothers (islands), Hong Kong, West Brother Island extensive * Sha Lo Wan Mines 0.3 km (Lantau Island) * Mui Wo (Silver Mine Bay) (Lantau Island) Types of mining Iron The largest iron deposit is found at Ma On Sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mountains, Peaks And Hills In Hong Kong
The following is a list of mountains, peaks and hills in Hong Kong. In the Hong Kong Government Cantonese Romanisation, romanisation system used by the Hong Kong Government known as Standard Romanization (Cantonese), Standard Romanisation, 'shan' and 'leng' are the transliterations of the Cantonese words for 'mount' (山) and 'ridge' (嶺), respectively. 'Toi', 'kong', 'fung' and 'koi' also correspond to 'mount' in English and 'teng' corresponds to 'peak'. It is this system which is used in the list below. Highest peaks of Hong Kong Lesser Hills There are numerous smaller hills that dot Hong Kong and some that have disappeared with re-development: Volcanoes *Tai Mo Shan *High Island (Benedict Kingdom), High Island Supervolcano *Kwun Yam Shan, Lam Tsuen, Kwun Yam Shan, Lam Tsuenhttp://geolsoc.org.hk/_newsletters/VOL%252014.2_Mar2008.pdf https://www.facebook.com/permalink.php?id=231062983601269&story_fbid=673694836004746& Removed hills *Cheung Pei Shan *Sacred Hill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Civil Engineering And Development Department
The Civil Engineering and Development Department (CEDD) is a department of the Government of Hong Kong, Hong Kong government that reports to the Development Bureau. Its major services include provision of land and infrastructure, port and marine services, geotechnical services and environment and sustainability services. Organisation The department has a headquarters, 2 functional offices (the Civil Engineering Office and the Geotechnical Engineering Office) and 5 regional development offices (the Sustainable Lantau Office, the East Development Office, the South Development Office, the West Development Office and the North Development Office). History The department was formed on 1 July 2004 through a merger of the Civil Engineering Department and the Territory Development Department. The CEDD formerly came under the (former) Environment, Transport and Works Bureau. Mining Division In 1951 in the Mining Section was created by the Labour and Welfare Bureau#Subordinate depar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tungsten
Tungsten (also called wolfram) is a chemical element; it has symbol W and atomic number 74. It is a metal found naturally on Earth almost exclusively in compounds with other elements. It was identified as a distinct element in 1781 and first isolated as a metal in 1783. Its important ores include scheelite and wolframite, the latter lending the element its alternative name. The free element is remarkable for its robustness, especially the fact that it has the highest melting point of all known elements, melting at . It also has the highest boiling point, at . Its density is 19.254 g/cm3, comparable with that of uranium and gold, and much higher (about 1.7 times) than that of lead. Polycrystalline tungsten is an intrinsically brittle and hard material (under standard conditions, when uncombined), making it difficult to work into metal. However, pure single-crystalline tungsten is more ductile and can be cut with a hard-steel hacksaw. Tungsten occurs in many alloys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The Atom, atoms are linked in a continuous framework of SiO4 silicon–oxygen Tetrahedral molecular geometry, tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of Silicon dioxide, SiO2. Quartz is, therefore, classified structurally as a Silicate mineral#Tectosilicates, framework silicate mineral and compositionally as an oxide mineral. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at . Since the transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molybdenite
Molybdenite is a mineral of molybdenum disulfide, Mo S2. Similar in appearance and feel to graphite, molybdenite has a lubricating effect that is a consequence of its layered structure. The atomic structure consists of a sheet of molybdenum atoms sandwiched between sheets of sulfur atoms. The Mo-S bonds are strong, but the interaction between the sulfur atoms at the top and bottom of separate sandwich-like tri-layers is weak, resulting in easy slippage as well as cleavage planes. Molybdenite crystallizes in the hexagonal crystal system as the common polytype 2H and also in the trigonal system as the 3R polytype. Description Occurrence Molybdenite occurs in high temperature hydrothermal ore deposits. Its associated minerals include pyrite, chalcopyrite, quartz, anhydrite, fluorite, and scheelite. Important deposits include the disseminated porphyry molybdenum deposits at Questa, New Mexico and the Henderson and Climax mines in Colorado. Molybdenite also occurs in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wolframite
Wolframite is an iron, manganese, and tungstate mineral with a chemical formula of that is the intermediate mineral between ferberite ( rich) and hübnerite ( rich). Along with scheelite, the wolframite series are the most important tungsten ore minerals. Wolframite is found in quartz veins and pegmatites associated with granitic intrusives. Associated minerals include cassiterite, scheelite, bismuth, quartz, pyrite, galena, sphalerite, and arsenopyrite. This mineral was historically found in Europe in Bohemia, Saxony, and in the UK in Devon and Cornwall. China reportedly has the world's largest supply of tungsten ore with about 60%. Other producers are Spain, Canada, Portugal, Russia, Australia, Thailand, South Korea, Rwanda, Bolivia, the United States, and the Democratic Republic of the Congo. Properties The wolframite series is mainly formed through magmatic-hydrothermal processes associated with felsic magmas, namely skarns, or through metamorphic processes. In the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Granite
Granite ( ) is a coarse-grained (phanerite, phaneritic) intrusive rock, intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies underground. It is common in the continental crust of Earth, where it is found in igneous intrusions. These range in size from dike (geology), dikes only a few centimeters across to batholiths exposed over hundreds of square kilometers. Granite is typical of a larger family of ''granitic rocks'', or ''granitoids'', that are composed mostly of coarse-grained quartz and feldspars in varying proportions. These rocks are classified by the relative percentages of quartz, alkali feldspar, and plagioclase (the QAPF diagram, QAPF classification), with true granite representing granitic rocks rich in quartz and alkali feldspar. Most granitic rocks also contain mica or amphibole minerals, though a few (known as leucogranites) conta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HK Geological Map Revised Version 3
Hong Kong)., Legally Hong Kong, China in international treaties and organizations. is a Special administrative regions of China, special administrative region of China. With 7.5 million residents in a territory, Hong Kong is the List of countries and dependencies by population density, fourth most densely populated region in the world. Hong Kong was established as a British Hong Kong, colony of the British Empire after the Qing dynasty ceded Hong Kong Island in 1841–1842 as a consequence of losing the First Opium War. The colony expanded to the Kowloon Peninsula in 1860 and was further extended when the United Kingdom obtained a 99-year lease of the New Territories in 1898. Hong Kong was Japanese occupation of Hong Kong, occupied by Empire of Japan, Japan from Battle of Hong Kong, 1941 to Liberation Day (Hong Kong), 1945 during World War II. The territory was Handover of Hong Kong, handed over from the United Kingdom to China in 1997. Hong Kong maintains separate govern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shing Mun Tunnels
The Shing Mun Tunnels are a system of tunnels and viaducts in the New Territories, Hong Kong connecting the new towns of Tsuen Wan to the west and Sha Tin to the east. They are a part of Route 9 and the Tsuen Wan entrance is the reset point (As Route 9 is apparently a loop) of Route 9. Construction started on 11 February 1987 and the tunnels opened on 20 April 1990. They are made up of three sections, each with twin two-lane tunnels (one each way). The westerly pair passes through Smuggler's Ridge near Shing Mun Reservoir, where it gets its name from; the easterly pair passes through Needle Hill and is linked to the westerly pair by two viaducts over Lower Shing Mun Reservoir. The toll plaza and bus interchange are located outside the Tsuen Wan end of the tunnel. The tunnels lead to Cheung Pei Shan Road and connect Wo Yi Hop Interchange in Tsuen Wan, and Shing Mun Tunnel Road in the east which links Tai Wai Road and ends at Tai Po Road. The Shing Mun Tunnels are cur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
