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Klang Gates Quartz Ridge
The Klang Gates Quartz Ridge ( ms, Permatang Kuartza Genting Klang) is a quartz dyke that runs through northeast of Kuala Lumpur and the state of Selangor, Malaysia within Bukit Lagong-Kanching-Klang Gates region. With the dimension of more than 14 km long and 200 m wide, it is the longest quartz formation in the world. The other major quartz vein in Kuala Lumpur is along Kajang-Cheras road, which is about 8 km long,http://www.wwf.org.my/about_wwf/what_we_do/forests_main/the_malaysian_rainforest/types_of_forests/klang_gates_quartz_ridge/ however the Klang Gates Quartz Ridge is one-of-its-kind because it has four types of quartz formation. The area has five endemic plants species among 265 species, found nowhere else in the world. A rare animal, the serow is found here as well. Despite being one of the most unusual geological formations in Malaysia, the Klang Gates Quartz Ridge has little conservation and currently being threatened by urban development. More recently, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz
Quartz is a hard, crystalline mineral composed of silica ( silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. 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 classified as gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia. Quartz is the mineral definin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dyke (geology)
A dike or dyke, in geological usage, is a sheet of rock that is formed in a fracture of a pre-existing rock body. Dikes can be either magmatic or sedimentary in origin. Magmatic dikes form when magma flows into a crack then solidifies as a sheet intrusion, either cutting across layers of rock or through a contiguous mass of rock. Clastic dikes are formed when sediment fills a pre-existing crack.Essentials of Geology, 3rd Ed, Stephen Marshak Magmatic dikes A magmatic dike is a sheet of igneous rock that cuts across older rock beds. It is formed when magma fills a fracture in the older beds and then cools and solidifies. The dike rock is usually more resistant to weathering than the surrounding rock, so that erosion exposes the dike as a natural wall or ridge. It is from these natural walls that dikes get their name. Dikes preserve a record of the fissures through which most mafic magma (fluid magma low in silica) reaches the surface. They are studied by geologists for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuala Lumpur
, anthem = ''Maju dan Sejahtera'' , image_map = , map_caption = , pushpin_map = Malaysia#Southeast Asia#Asia , pushpin_map_caption = , coordinates = , subdivision_type = Country , subdivision_name = , subdivision_type1 = Administrative areas , subdivision_name1 = , established_title = Establishment , established_date = 1857 , established_title2 = City status , established_date2 = 1 February 1972 , established_title3 = Transferred to federal jurisdiction , established_date3 = 1 February 1974 , government_type = Federal administrationwith local government , governing_body = Kuala Lumpur City Hall , leader_title = Mayor , leader_name = Mahadi bin Che Ngah , total_type = Federal territory , area_footnotes = , area_total_km2 = ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
