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Tepuis Of Venezuela
A tepui , or tepuy (), is a member of a family of table-top mountains or mesas found in northern South America, especially in Venezuela, western Guyana, and northern Brazil. The word tepui means "house of the gods" in the native tongue of the Pemon, the indigenous people who inhabit the Gran Sabana. Tepuis tend to be found as isolated entities rather than in connected ranges, which makes them the host of a unique array of endemic plant and animal species. Notable tepuis include Auyantepui, Autana, Neblina, and Mount Roraima. They are typically composed of sheer blocks of Precambrian quartz arenite sandstone that rise abruptly from the jungle. Auyantepui is the source of Angel Falls, the world's tallest waterfall. Morphology These table-top mountains are the remains of a large sandstone plateau that once covered the granite basement complex between the north border of the Amazon Basin and the Orinoco, between the Atlantic coast and the Rio Negro. This area is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kukenán-tepui
Kukenán, also known as Matawi or Cuquenán, is a tepui in Bolivar State, Bolívar State, Guayana Region, Venezuela. It has an estimated surface area of 2185 hectares (equivalent to 21.85 square kilometres). It is high and about 3 km (1.9 mi) long. Cuquenan Falls, Kukenan Falls, which is high, is located at the south end of the tepui. Kukenán is located in Canaima National Park. Next to Kukenán, to the southeast, is Mount Roraima, a better known tepui. Kukenán is more difficult to climb, so it is ascended much less frequently than Mount Roraima. Canaima National Park is also home to the highest waterfall in the world, which is located in Auyán Tepui. Scenery on top of Kukenán provided inspiration for the 2009 film ''Up (2009 film), Up''. See also *Gran Sabana References Further reading *Kok, P.J.R., R.D. MacCulloch, D.B. Means, K. Roelants, I. Van Bocxlaer & F. Bossuyt (7 August 2012). ''Current Biology'' 22(15): R589–R590. [] Tepuis of Venez ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salto Angel - Cañon Del Diablo
Salto may refer to: Places Settlements * Salto, Buenos Aires, Argentina ** Salto Partido, a provincial subdivision * Salto, São Paulo, Brazil * Salto, Cape Verde * Salto, Cidra, Puerto Rico * Salto, San Sebastián, Puerto Rico * Salto, Portugal, a parish in the municipality of Montalegre * Salto, Uruguay ** Salto Department ** Roman Catholic Diocese of Salto, Uruguay Rivers and lakes * Lago del Salto, a lake in Lazio, Italy * Salto River (Paraíba), Brazil * Salto River (Costa Rica) People * Álvaro Salto (born 1974), Spanish golfer * Kasper Salto (born 1967), Danish industrial designer Other uses * ''Salto'' (film), a 1965 Polish drama * Salto, a somersault in gymnastics * Salto, a type of suplex used in Greco-Roman, pro wrestling, amateur wrestling, and other contact sports * Salto F.C., a Uruguayan football club * Start + Flug H-101 ''Salto'', an aerobatic glider * reuSable strAtegic space Launcher Technologies & Operations, a program of the European Commiss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterfall
A waterfall is any point in a river or stream where water flows over a vertical drop or a series of steep drops. Waterfalls also occur where meltwater drops over the edge of a tabular iceberg or ice shelf. Waterfalls can be formed in several ways, but the most common method of formation is that a river courses over a top layer of resistant bedrock before falling onto softer rock, which erodes faster, leading to an increasingly high fall. Waterfalls have been studied for their impact on species living in and around them. Humans have had a distinct relationship with waterfalls since prehistory, travelling to see them, exploring and naming them. They can present formidable barriers to navigation along rivers. Waterfalls are religious sites in many cultures. Since the 18th century, they have received increased attention as tourist destinations, sources of hydropower, andparticularly since the mid-20th centuryas subjects of research. Definition and terminology A waterfal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angel Falls
Angel Falls (; Pemon: ''Kerepakupai Merú'' or ''Parakupá Vená'') is a waterfall in Venezuela. It is the world's tallest uninterrupted waterfall, with a height of , and a plunge of . The waterfall drops over the edge of the Auyán-tepui mountain in the Canaima National Park ( Spanish: Parque Nacional Canaima), a UNESCO World Heritage Site in the Gran Sabana region of Bolívar State. The height figure, , mostly consists of the main plunge but also includes about of sloped cascade and rapids below the drop and then a plunge downstream of these talus rapids. The falls are along a fork of the Río Kerepacupai Merú which flows into the Churún River, a tributary of the Carrao River, itself a tributary of the Orinoco River. With regard to overall height, a revisited validation of waterfall measurements is not available, and there is still uncertainty whether Angel Falls or South Africa's Tugela Falls is the tallest (both measurements were taken at considerable distance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a Clastic rock#Sedimentary clastic rocks, clastic sedimentary rock composed mainly of grain size, sand-sized (0.0625 to 2 mm) silicate mineral, silicate grains, Cementation (geology), cemented together by another mineral. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar, because they are the most resistant minerals to the weathering processes at the Earth's surface. Like uncemented sand, sandstone may be imparted any color by impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Because sandstone beds can form highly visible cliffs and other topography, topographic features, certain colors of sandstone have become strongly identified with certain regions, such as the red rock deserts of Arches National Park and other areas of the Southwestern United States, American Southwest. Rock formations composed of sandstone usually allow the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz Arenite
A quartz arenite or quartzarenite is a sandstone composed of greater than 90% detrital quartz. Quartz arenites are the most mature sedimentary rocks possible, and are often referred to as ultra- or super-mature, and are usually cemented by silica. They often exhibit both textural and compositional maturity. The two primary sedimentary depositional environments that produce quartz arenites are beaches/ upper shoreface and aeolian processes Aeolian processes, also spelled eolian, pertain to wind activity in the study of geology and weather and specifically to the wind's ability to shape the surface of the Earth (or other planets). Winds may erosion, erode, transport, and deposit ....Prothero, D. R. and Schwab, F., 1996, Sedimentary Geology, pg. 96-98, See also * * References Further reading * * * * * sandstone sedimentary rocks {{petrology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precambrian
The Precambrian ( ; or pre-Cambrian, sometimes abbreviated pC, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the Phanerozoic Eon, which is named after Cambria, the Latinized name for Wales, where rocks from this age were first studied. The Precambrian accounts for 88% of the Earth's geologic time. The Precambrian is an informal unit of geologic time, subdivided into three eons ( Hadean, Archean, Proterozoic) of the geologic time scale. It spans from the formation of Earth about 4.6 billion years ago ( Ga) to the beginning of the Cambrian Period, about million years ago ( Ma), when hard-shelled creatures first appeared in abundance. Overview Relatively little is known about the Precambrian, despite it making up roughly seven-eighths of the Earth's history, and what is known has largely been discovered from the 1960s onwards. The Precambrian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
