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Serra Da Chela
The Serra da Chela is a mountain range in south-central Angola. The mountains, rising to 2,306 meters (7,566 ft) above the coastal plains, are among the highest in the country. It forms part of the Great Escarpment of southern Africa, separating the Huíla Plateau of the interior from the low-lying coastal Namib Desert. To its west there are some inselbergs, remnants of the plateau from a time when it was more extensive. In many places impassable, the escarpment may be accessed by the road running east from Capangombe to Humpata on the plateau. The range was formed approximately 200 million years ago, when the supercontinent Pangaea broke up. What is now the Serra da Chela range was on the edge of one of the tectonic plates where Africa connected to South America, and rose slowly upward as the Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Namibe Province
Namibe Province is a Provinces of Angola, province of Angola. Under Portuguese Angola, Portuguese rule it was the Moçâmedes District. It has an area of 57,091 km2 and had a 2014 census population of 495,326. The port and city of Namibe, Moçâmedes is the capital of the province with a population of 250,000 in 2014. Iona National Park lies within the province. History From its foundation by the Portuguese in 1840 and until 1985, the area was known as Moçâmedes (also spelled "Mossâmedes"). The current name of the province is derived from the Namib Desert, lying predominantly in Namibia; the northernmost part, however, extended into the province of Namibe. Extensive flooding in the province occurred on April 5, 2001, with the Bero River, Bero and Giraul River severely affecting roads and people in Namibe, Huila Province, Huila and Benguela Province, Benguela provinces. A reported 20 people in Namibe Province lost their lives during the flood. Geography and wildlife Namib ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angola
, national_anthem = " Angola Avante"() , image_map = , map_caption = , capital = Luanda , religion = , religion_year = 2020 , religion_ref = , coordinates = , largest_city = capital , official_languages = Portuguese , languages2_type = National languages , languages2 = , ethnic_groups = , ethnic_groups_ref = , ethnic_groups_year = 2000 , demonym = , government_type = Unitary dominant-party presidential republic , leader_title1 = President , leader_name1 = João Lourenço , leader_title2 = Vice President , leader_name2 = Esperança da CostaInvestidura do Pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Range
A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have arisen from the same cause, usually an orogeny. Mountain ranges are formed by a variety of geological processes, but most of the significant ones on Earth are the result of plate tectonics. Mountain ranges are also found on many planetary mass objects in the Solar System and are likely a feature of most terrestrial planets. Mountain ranges are usually segmented by highlands or mountain passes and valleys. Individual mountains within the same mountain range do not necessarily have the same geologic structure or petrology. They may be a mix of different orogenic expressions and terranes, for example thrust sheets, uplifted blocks, fold mountains, and volcanic landforms resulting in a variety of rock types. Major ranges Most geolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Escarpment, Southern Africa
The Great Escarpment is a major topographical feature in Africa that consists of steep slopes from the high central Southern African plateauAtlas of Southern Africa. (1984). p. 13. Reader's Digest Association, Cape Town downward in the direction of the oceans that surround southern Africa on three sides.McCarthy, T. & Rubidge, B. (2005). ''The Story of Earth and Life''. pp. 16–7,192–195, 202–205, 245–248, 263, 267–269. Struik Publishers, Cape Town.Truswell, J.F. (1977). ''The Geological Evolution of South Africa''. pp. 151–153,157–159,184–188, 190. Purnell, Cape Town. While it lies predominantly within the borders of South Africa, in the east the escarpment extends northward to form the border between Mozambique and Zimbabwe, continuing on beyond the Zambezi river, Zambezi river valley to form the Muchinga Escarpment in eastern Zambia. In the west, it extends northward into Namibia and Angola.The Times comprehensive Atlas of the world (1999). pp. 88–89. Times Boo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huíla Plateau
The Huíla Plateau ( pt, Planalto da Huíla) is a large plateau and highlands region in south-central Angola. It is part of the Great Escarpment and forms the southernmost stretch of the Central Plateau of Angola. It is separated from the Atlantic Coast by the Serra da Leba and Serra da Chela mountain ranges, extending southward to the Namib Desert at Angola's border with Namibia. Its western edge forms the border between the Huíla and Namibe Provinces. Geography The Huíla Plateau is located in south-central Angola, on the southern extremity of the Bié Plateau. Its southern edge skirts the Namib Desert, and its southeastern edge runs along the Cunene Basin. Its western edge forms the natural boundary between the Huíla and Namibe Provinces, roughly extending from Chongorói, Benguela Province, in the north, to Onkokwa, Cunene Province, in the south. This edge is characterized by deep escarpments, such as the Tundavala Gap, and is part of the Great Escarpment. Along thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Namib Desert
The Namib ( ; pt, Namibe) is a coastal desert in Southern Africa. The name is of Khoekhoegowab origin and means "vast place". According to the broadest definition, the Namib stretches for more than along the Atlantic coasts of Angola, Namibia, and South Africa, extending southward from the Carunjamba River in Angola, through Namibia and to the Olifants River (Western Cape), Olifants River in Western Cape, South Africa. The Namib's northernmost portion, which extends from the Angola-Namibia border, is known as Moçâmedes Desert, while its southern portion approaches the neighboring Kalahari Desert. From the Atlantic coast eastward, the Namib gradually ascends in elevation, reaching up to inland to the foot of the Great Escarpment, Southern Africa, Great Escarpment. Annual precipitation ranges from in the most arid regions to at the escarpment, making the Namib the only true desert in southern Africa. Having endured Desert climate, arid or Semi-arid climate, semi-arid cond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inselbergs
An inselberg or monadnock () is an isolated rock hill, knob, ridge, or small mountain that rises abruptly from a gently sloping or virtually level surrounding plain. In Southern Africa a similar formation of granite is known as a koppie, an Afrikaans word ("little head") from the Dutch diminutive word ''kopje''. If the inselberg is dome-shaped and formed from granite or gneiss, it can also be called a bornhardt, though not all bornhardts are inselbergs. An inselberg results when a body of rock resistant to erosion, such as granite, occurring within a body of softer rocks, is exposed by differential erosion and lowering of the surrounding landscape. Etymology Inselberg The word ''inselberg'' is a loan word from German, and means "island mountain". The term was coined in 1900 by geologist Wilhelm Bornhardt (1864–1946) to describe the abundance of such features found in eastern Africa. At that time, the term applied only to arid landscape features. However, it has sinc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humpata
Humpata is a town and municipality in the province of Huíla, Angola. The municipality had a population of 89,144 in 2014. Humpata was the primary destination of the Trekboers on the Dorsland Trek in the 1870s. These Afrikaners formed the majority population in the area for some time, before leaving to South West Africa after World War I, though some stayed until 1975, on the onset of the Angolan Civil War The Angolan Civil War ( pt, Guerra Civil Angolana) was a civil war in Angola, beginning in 1975 and continuing, with interludes, until 2002. The war immediately began after Angola became independent from Portugal in November 1975. The war was .... See also * Voortrekkers * Dorsland Trek * History of Angola * Trekboers References Populated places in Huíla Province Municipalities of Angola Great Trek {{Angola-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supercontinent
In geology, a supercontinent is the assembly of most or all of Earth's continent, continental blocks or cratons to form a single large landmass. However, some geologists use a different definition, "a grouping of formerly dispersed continents", which leaves room for interpretation and is easier to apply to Precambrian times. To separate supercontinents from other groupings, a limit has been proposed in which a continent must include at least about 75% of the continental crust then in existence in order to qualify as a supercontinent. Supercontinents have assembled and dispersed multiple times in the geologic past (see table). According to modern definitions, a supercontinent does not exist today; the closest in existence to a supercontinent is the current Afro-Eurasian landmass, which covers approx. 57% of Earth's total land area. The last time the continental landmasses were near to one another was 336 to 175 million years ago as the supercontinent, Pangaea. The positions of con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pangaea
Pangaea or Pangea () was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from the earlier continental units of Gondwana, Euramerica and Siberia during the Carboniferous approximately 335 million years ago, and began to break apart about 200 million years ago, at the end of the Triassic and beginning of the Jurassic. In contrast to the present Earth and its distribution of continental mass, Pangaea was centred on the equator and surrounded by the superocean Panthalassa and the Paleo-Tethys Ocean, Paleo-Tethys and subsequent Tethys Ocean, Tethys Oceans. Pangaea is the most recent supercontinent to have existed and the first to be reconstructed by geologists. Origin of the concept The name "Pangaea" is derived from Ancient Greek ''pan'' (, "all, entire, whole") and ''Gaia (mythology), Gaia'' or Gaea (, "Mother goddess, Mother Earth, land"). The concept that the continents once formed a contiguous land mass was hypothesised, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plate Tectonics
Plate tectonics (from the la, label=Late Latin, tectonicus, from the grc, τεκτονικός, lit=pertaining to building) is the generally accepted scientific theory that considers the Earth's lithosphere to comprise a number of large tectonic plates which have been slowly moving since about 3.4 billion years ago. The model builds on the concept of ''continental drift'', an idea developed during the first decades of the 20th century. Plate tectonics came to be generally accepted by geoscientists after seafloor spreading was validated in the mid to late 1960s. Earth's lithosphere, which is the rigid outermost shell of the planet (the crust and upper mantle), is broken into seven or eight major plates (depending on how they are defined) and many minor plates or "platelets". Where the plates meet, their relative motion determines the type of plate boundary: '' convergent'', '' divergent'', or ''transform''. Earthquakes, volcanic activity, mountain-building, and oceanic tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
