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Mandara Mountains
The Mandara Mountains are a volcanic range extending about 190 km (about 120 mi) along the northern part of the Cameroon–Nigeria border, from the Benue River in the south () to the north-west of Maroua in the north (). The highest elevation is the summit of Mount Oupay, at 1,494 m (4,900 ft) above sea level (). The region is densely populated, mainly by speakers of Chadic languages, including both the Mofu and the Kirdi ethnic groups. Extensive archaeological research has been undertaken in the Mandara Mountains, including work at Diy-Gid-Biy (DGB) sites. Geology The Mandara Mountains were formed millions of years ago when a continental plate of basement rock deep beneath the African continent rose up, fragmenting and splitting as it was pushed to the surface. The climate was significantly wetter in those times, so enormous amounts of precipitation formed numerous rivers that rushed through these fractures, carving them deeper and wider, resulting in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mandara Mountains From Yola
Mandara is an ethnic group and a language family in West Africa. It is also an alternative spelling of "mandarah", referring to a guest room in Middle Eastern buildings, especially in Egypt. Additionally, it may refer to: West Africa * Mandara languages is one of the group of Chadic languages * Mandara Kingdom of Cameroon * Mandara Mountains of Cameroon * Mandara people, also called the Mandrawa, of northern Cameroon and northeastern Nigeria Other * El Mandara, a neighbourhood in Alexandria, Egypt * Bali Mandara Toll Road, an elevated toll road in Bali, Indonesia * Mandara or Mandala, Hindu and Buddhist religious object or symbol * Mandara people (Australia), an Australian Aboriginal tribe * Mandara tree, the legume ''Erythrina stricta'' * Mandaraba tree, the Indian Coral Tree (''Erythrina variegata'') * The crown flower plant ''Calotropis gigantea'' * Mount Mandara, a mythical mountain in the Hindu Puranas * ''Mandara'' (TV series), a German television series * Mandara l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Cone
Volcanic cones are among the simplest volcanic landforms. They are built by ejecta from a volcanic vent, piling up around the vent in the shape of a cone with a central crater. Volcanic cones are of different types, depending upon the nature and size of the fragments ejected during the eruption. Types of volcanic cones include stratocones, spatter cones, tuff cones, and cinder cones. Stratocone Stratocones are large cone-shaped volcanoes made up of lava flows, explosively erupted pyroclastic rocks, and igneous intrusives that are typically centered around a cylindrical vent. Unlike shield volcanoes, they are characterized by a steep profile and periodic, often alternating, explosive eruptions and effusive eruptions. Some have collapsed craters called calderas. The central core of a stratocone is commonly dominated by a central core of intrusive rocks that range from around to over several kilometers in diameter. This central core is surrounded by multiple generations of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Plugs Of Africa
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plates slide pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Ranges Of Nigeria
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Ranges Of Cameroon
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tororo Rock
Tororo Rock is a rock formation located in the town of Tororo in the Eastern Region of Uganda. It serves as the defining feature of the town. It is also a tourist attraction being climbable in around an hour. The climb involves four ladders up the last sections but the walk does not require any skill. A tour guide is recommended and a small fee is charged to non-nationals (USh 10,000 per person or approximately US$2.75), as of December 2017. On top of the hill is a radio mast and accompanying power substation. Also at the summit are cell towers belonging to the leading telecommunication network companies operating in Uganda, including Airtel Uganda, MTN Uganda and Uganda Telecom. There is also a closed down cable car that has remained unused for a number of years. Location The rock is situated approximately southeast of the central business district of the town. The coordinates of the rock are:00 41 06N, 34 11 01E (Latitude:0.6850; Longitude:34.1836). Overview It is reported ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pico Cão Grande
The Pico Cão Grande (Portuguese for "Great Dog Peak") is a landmark needle-shaped volcanic plug peak in São Tomé and Príncipe, in the Caué District of São Tomé Island in Parque Natural Obô de São Tomé. Its summit is above sea level, and it rises about over the surrounding terrain. The volcanic plug was formed by magma solidifying in the vent of an active volcano. The nearest village is Vila Clotilde, 3 km to the east. The district seat São João dos Angolares is 9 km to the east. Geology The volcanic plug is quite a recent phenomenon, having formed as part of the Cameroon line of volcanoes roughly three and a half million years ago in the Pliocene. Its composition is mainly phonolite (also called clinkstone in vernacular English). Rock Climbing The moss growing on the rocks due to high moisture content, and the presence of snakes, make climbing here very difficult. The first attempt to climb Pico Cão Grande was in 1975 by a Portuguese team of climb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acacia Albida
''Faidherbia'' is a genus of leguminous plants containing one species, ''Faidherbia albida'', which was formerly widely included in the genus ''Acacia'' as ''Acacia albida''. The species is native to Africa and the Middle East and has also been introduced to Pakistan and India. Common names include apple-ring acacia (their circular, indehiscent seed pods resemble apple rings), and winter thorn. The South African name is ana tree. Taxonomy This species has been known as ''Acacia albida'' for a long time, and is often still known as such. Guinet (1969) in Pondicherry first proposed separating it into the genus ''Faidherbia'', a genus erected the previous century by Auguste Chevalier with this as the type species, seconded by the South African James Henderson Ross (1973) and the Senegalese legume botanist Nongonierma (1976, 1978), but authors continued to favour classification under ''Acacia'' as of 1997. Infraspecific variability According to John Patrick Micklethwait Brenan writi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khaya Senegalensis
''Khaya senegalensis'' is a species of tree in the Meliaceae family that is native to Africa. Common names include African mahogany, dry zone mahogany, Gambia mahogany, khaya wood, Senegal mahogany, ''cailcedrat'', ''acajou'', ''djalla'', and ''bois rouge''. Description African mahogany is a fast-growing medium-sized tree which can obtain a height of up to 15–30 m in height and 1 m in diameter. The bark is dark grey to grey-brown while the heartwood is brown with a pink-red pigment made up of coarse interlocking grains. The tree is characterised by leaves arranged in a spiral formation clustered at the end of branches. The white flowers are sweet-scented; the fruit changes from grey to black when ripening. Distribution and habitat The tree is native to Benin, Burkina Faso, Cameroon, Central African Republic, Chad, Ivory Coast, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Mali, Niger, Nigeria, Senegal, Sierra Leone, Sudan, Togo, and Uganda. It is found in ripari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayo-Louti Forest Reserve
Mayo-Louti is a department of North Province in Cameroon. The department covers an area of and as of 2001 had a total population of 334,312. The capital of the department is Guider. Subdivisions The department is divided administratively into 3 communes and in turn into villages. Communes * Figuil * Guider * Mayo-Oulo Mayo-Oulo is a town and commune in Cameroon. See also *Communes of Cameroon The Arrondissements of Cameroon are the third-level units of administration in Cameroon. The arrondissements are organised by divisions and sub divisions of each provin ... References Departments of Cameroon North Region (Cameroon) {{Cameroon-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afromontane
The Afromontane regions are subregions of the Afrotropical realm, one of the Earth's eight biogeographic realms, covering the plant and animal species found in the mountains of Africa and the southern Arabian Peninsula. The Afromontane regions of Africa are discontinuous, separated from each other by lower-lying areas, and are sometimes referred to as the Afromontane archipelago, as their distribution is analogous to a series of sky islands. Geography Afromontane communities occur above elevation near the equator, and as low as elevation in the Knysna-Amatole montane forests of South Africa. Afromontane forests are generally cooler and more humid than the surrounding lowlands. The Afromontane archipelago mostly follows the East African Rift from the Red Sea to Zimbabwe, with the largest areas in the Ethiopian Highlands, the Albertine Rift Mountains of Uganda, Rwanda, Burundi, Democratic Republic of the Congo, and Tanzania, and the Eastern Arc highlands of Kenya and Tanzan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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