The meaning of GREAT RIFT VALLEY is depression in southwestern Asia and eastern Africa extending with several breaks from the valley of the Jordan River south to central Mozambique.
Rift valleys are found in two crustal settings: continental, as a primarily tectonic landform, which can be modified by exogenic processes, an elongate depression or valley formed by subsidence of the block lying between subparallel, opposed normal faults and floored by the surface of the block ...
AFRICA | Rift Valley L. Frostick, in Encyclopedia of Geology, 2005 Hydrology and Climate The East African Rift system sits astride the equator, extending from 12° N to 15° S, and this dictates the overall character of the climate. Superimposed on this are the effects of the rift topograph...
The original extent of the flood basalts would have been greater, but large areas have been buried within the rift valley by other volcanic eruptions and sediments. Click to Enlarge. Part II. The East African Rift If the rifting process described occurs in a continental setting, then we have...
East African Rift map What is the East Africa Rift System The oldest and best defined rift occurs in the Afar region of Ethiopia and this rift is usually referred to as the Ethiopian Rift. Further to the South a series of rifts occur which include a Western branch, the "Lake Albert Rift...
Significant high-prevalence clusters encompassed areas that had experienced epidemics during the late 20th century and significant low-prevalence clusters were located in contiguous areas of Western and Central Africa. 展开 关键词: Atlas Mapping Geographical information systems Rift Valley fever Epidemiology ...
Rift Valley fever in South Africa the occurrence of human cases in the Orange Free state, the North-Western Cape Province, the Western and Southern Transvaal: field and laboratory investigations. S Afr Med J 1951; 25: 908-912.Joubert JDS, Ferguson AL, Gear J. Rift Valley fever in South...
Rift Valley fever (RVF) is a re-emerging arboviral disease of public health and veterinary importance in Africa and the Arabian Peninsula. Major RVF epidemics were documented in South Africa in 1950–1951, 1974–1975, and 2010–2011. The number of individuals infected during these outbreaks has...
The Rift Valley, also known as the Great Rift Valley or Eastern Rift Valley, is a geological feature due to the movement oftectonic platesandmantleplumes that runs south from Jordan in southwest Asia, through East Africa and down toMozambiquein southern Africa. ...
Africa's Rift Valley Lakes: Directed by Satoshi Okabe. With Masaharu Fukuyama, Fabien Jacquelin, Richard Lintern. On the shores of Africa's Rift Valley Lakes a troop of chimpanzees provides an astonishing evolutionary counterpoint to the amazing story of