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Topic: Great African Rift Valley

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	African Great Rift
		Main African volcanic activities are situated along the Great Rift Valley, a hundreds of kilometres wide depression, which spans from Mozambique in the south to Valley of Jordan in the north, 6500 km long.
		North of Lengai, the rift valley dissects Kenya with another 16 active centres, from Longonot, Suswa and Menegai to Teleki-Likaiyu and volcanic islands in the middle of Lake Rudolph.
		Rifting has also been essential to Africa's second great chain of volcanoes, which runs for 1600 km along the Cameroon-Nigeria border to the lonely island of Pagalu, in the Gulf of Guinea.
	volcano.20m.com /catalog.html (1287 words)

	Great Rift Valley - free-definition (Site not responding. Last check: 2007-10-17)
		The Great Rift Valley is a vast geographical and geological feature of east Africa and southwest Asia created by the rifting and separation of the African and Arabian tectonic plates around 35 million years ago.
		The Gulf of Aden is an eastward continuation of the rift - before the rift opened, the Arabian Peninsula was attached to the Horn of Africa - and from this point the rift continues as part of the Mid-oceanic ridge of the Indian Ocean.
		As the valley has no outlet to the sea, its lakes tend to be shallow and have a high mineral content as the evaporation of water leaves the salts behind.
	www.free-definition.com /Great-Rift-Valley.html (583 words)

	AllRefer.com - Great Rift Valley, Africa (African Physical Geography) - Encyclopedia (Site not responding. Last check: 2007-10-17)
		The main section of the valley in Africa continues from the Red Sea SW across Ethiopia and S across Kenya, Tanzania, and Malawi to the lower Zambezi River valley in Mozambique.
		The Great Rift Valley ranges in elevation from c.1,300 ft (395 m) below sea level (the Dead Sea) to c.6,000 ft (1,830 m) above sea level in S Kenya.
		The present configuration of the rift, which dates from the mid-Pleistocene epoch, is probably a result of a rifting process associated with thermal currents in the earth's mantle (see rift valley); there is evidence of earlier rift structures.
	reference.allrefer.com /encyclopedia/G/GreatRif.html (384 words)

	RUDOLF - LoveToKnow Article on RUDOLF (Site not responding. Last check: 2007-10-17)
		In particular, the great volcano of Lubburua (Telekis volcano) at the S. end of the lake is said to have been destroyed between 1889 and 1897 by a sudden explosion.
		Further N., on the W. side, sandy plains alternate with lines of low hills, the immediate shores (on which the water appears to have encroached in very modern times) being marked by spits of sand,, which in places cut off lagoons from the main body of the lake.
		In 30 8 N the dry bed of the Turkwellin its upper course a large rivel descending the slopes of Mount Elgonapproaches the lake.
	85.1911encyclopedia.org /R/RU/RUDOLF.htm (563 words)

	Encyclopedia article on Great Rift Valley [EncycloZine] (Site not responding. Last check: 2007-10-17)
		It was created by the rifting and separation of the African and Arabian tectonic plates around 35 million years ago.
		The northernmost part of the Rift forms the valley of the Jordan River, which flows southward through the Hula Lake and the Sea of Galilee in Israel to the Dead Sea.
		In Kenya the valley is deepest to the north of Nairobi.
	encyclozine.com /Great_Rift_Valley (647 words)

	Kenya, Africa - The Rift Valley, Kenya (Site not responding. Last check: 2007-10-17)
		This geologic phenomena, dubbed the Great Rift Valley by the Scottish explorer John Walter Gregory, divides Kenya neatly down the length of the country essentially separating east from west.
		The valley floor is at its lowest near Lake Turkana where there is virtually no distinction between the Great Rift and the surrounding desert.
		Subterranean movement is common today as the Rift Valley is home to thirty active and semi-active volcanoes and countless hot springs along its length.
	www.jambokenya.com /jambo/location/rvalley.htm (349 words)

	Mars Puts On A Little Weight - Mars-Earth Wars
		It was due to a radical relocation of the spin axis, and a consequent radical relocation of the equator, and consequently of its equatorial bulge.
		The Great African Rift Valley is that rift, a perpendicular rift caused by this radical (and recent) shift of the equator.
		The Great Rift Valley of Africa appears to have had its genesis after the time of the last major shift of the spin axis and shift in location of the equator and its bulge zone.
	www.creationism.org /patten/PattenMarsEarthWars/PattenMEW03.htm (4014 words)

	Kenya Geography (Site not responding. Last check: 2007-10-17)
		In the north of Kenya, the valley is broad and shallow, embracing Lake Turkana (160 miles long), while further south it narrows and deepens and is walled by escarpments 610 to 930 meters high.
		West of the Rift Valley, the plateau descends to the plains that border Lake Victoria.
		The Kenyan Rift Valley is a section of 6 000 km rift system which stretches from the Dead Sea in the Middle East, south through the Red Sea, Ethiopia, Kenya, Tanzania, Malawi and into Mozambique.
	kenya.com /geo.html (1145 words)

	The Independent (London, England): The complete guide to The Rift Valley; The Great Rift Valley provides the eastern ... (Site not responding. Last check: 2007-10-17)
		The Independent (London, England): The complete guide to The Rift Valley; The Great Rift Valley provides the eastern backbone of the African continent, an epic trail of jaw-dropping scenery, stunning safaris and changing cultures.
		The complete guide to The Rift Valley; The Great Rift Valley provides the eastern backbone of the African continent, an epic trail of jaw-dropping scenery, stunning safaris and changing cultures.
		The cradle of mankind, the backbone of Africa, the Rift Valley is a 4,000 mile-long string of superlatives, running from the Dead Sea to Mozambique.
	www.highbeam.com /library/doc0.asp?DOCID=1G1:73862148&refid=ip_encyclopedia_hf (229 words)

	Plate Tectonics
		The East African rift marks the boundary between two tectonic plates: the Nubian plate to the west and the Somalian plate to the east.
		A general rule of plate tectonics is that such rifts must hook up to other plate boundaries, but researchers have had trouble tracing the connection of the East African rift.
		In the region of the East African rift, far north of the pivot point, the two plates are separating by 6 millimeters a year.
	www.platetectonics.com /article.asp?a=50&c=3 (346 words)

	the great rift valley - zambia - luangwa safari network
		The Luangwa Valley, situated at the end of the Great Rift Valley, is a region of magnificent natural beauty, abundant animal numbers and of vast conservation value.
		Situated at the end of the Great Rift Valley and is itself a rift valley: with the Luangwa River winding its way along the valley floor which is flanked on either side by steep escarpment walls.
		Conservation: Protected by the valley walls, animal numbers have flourished and the valley is known to have been home to one of the largest elephant populations in Africa.
	www.luangwa.net /zambia_info/parks_in_zambia (287 words)

	East African Rift System -- Encyclopædia Britannica (Site not responding. Last check: 2007-10-17)
		The mountains are intimately related to the East African Rift System, the fractures of which extend discontinuously between the Zambezi River valley and the Red Sea and are flanked in many areas by highlands.
		The longest rift on the Earth's surface, the Great Rift Valley is a long, deep depression with steep, wall-like cliffs, extending from Jordan in southwestern Asia southward through Africa to Mozambique.
		Includes information on the geographic distribution of Rift Valley fever, transmission of the disease to humans, populations who are most at risk, symptoms, treatment, permanent vision loss associated with the disease, and preventive measures.
	www.britannica.com /eb/article-9031748 (873 words)

	Physical Features of Ethiopia (Site not responding. Last check: 2007-10-17)
		Despite the complexity of the topography, it is common to classify the country into the lowland (<1500 meters) and highland (>1500 meters) areas, where two-thirds of the land area is highland and the remaining one-third is lowland.
		Much of Ethiopia is part of the East African Rift Plateau, where the highlands are referred to as the Ethiopian Plateau and they are bisected by the Great Rift Valley into the northwestern highlands and the southeastern highlands, each with associated lowlands.
		The third physiographic region is the Ethiopian Rift Valley, which is part of the Great East African Rift Valley extending from the Jordan Valley in the Middle East to the Zambezi River's Shire tributary in Mozambique.
	www.fas.usda.gov /pecad2/highlights/2002/10/ethiopia/baseline/Eth_Geography.htm (366 words)

	Plate Tectonics Great Rift Valley
		A real-life triple rift is shown on the left between Africa and Saudi Arabia.
		The stem of the Y is the Great Rift Valley, which is tearing Africa apart.
		Eventually, as the rift deepens and widens, surrounding waters will rush in to create a new gulf, or sea, as Somalia breaks away from Africa to form the new Somali Plate.
	www.platetectonics.com /oceanfloors/somali.asp (121 words)

	tanzania's great rift valley
		Created by the rifting and tectonic forces of East Africa and Saudi Arabia millions of years ago, the Great Rift Valley is actually divided into two forks, the eastern rift and the western rift.
		Evidence of volcanic activity along the rift is seen by the presence of numerous boiling hot springs.
		Named by the explorer John Walter Gregory, the Rift Valley is continuously moving and in a few million years, eastern Africa will probably split off to form a new land mass.
	www.ngorongorocrater.com /Attractions/greatrift.php (241 words)

	Israel Travel Directory
		Israel is located in the Middle East, bounded by the Mediterranean Sea to the west, the Great Syrian-African Rift Valley to the east and the Red Sea to the south, sharing its borders with Lebanon, Syria, Jordan and Egypt.
		Winters are mild, with temperatures averaging 14 degrees C (57 degrees F) along the coast and 9 degrees C (48 degrees F) in the mountains.
		The Rift Valley is about 9 C degrees (15 F degrees) warmer than the rest of the nation in winter.
	www.tuttinsieme.it /tutti/tut/meast/israel/isrdir.htm (430 words)

	The Great Rift system (Site not responding. Last check: 2007-10-17)
		The Great African Rift Valley system is one of the most fascinating geological phenomena in the world.
		What is unique with the Great African Rift Valley system is that for some 4000 miles the crust of the earth has separated and then settled forming the rift valley.
		In the parts of the Rift valley which are in Tanzania one often experiences the tremor of the earth.
	www.connect.ab.ca /~dmoore/page5.htm (323 words)

	Ultimate Pearl of Africa
		Uganda is truly a magnificent destination, bisected from east to west by the equator and from north to south by the western corridor of the Great African Rift Valley.
		After leaving the Rift Valley pass through beautiful agricultural countryside where every type of fruit and vegetable imaginable is grown.
		We again gently descend into The Great African Rift Valley and Queen Elizabeth National Park and Mweya Lodge, situated on a peninsula overlooking Lake Edward and Kasinga Channel, offering beautiful views of the park with the Rwenzori Mountains in the background.
	www.foruminternational.com /uganda4.shtml (1296 words)

	Great Rift Valley Safari - safari to Kenya 's Great Rift Valley, Africa (Site not responding. Last check: 2007-10-17)
		The valley forms a wide trench (about 5400 miles long) down the length of Africa that is visible from the moon.
		If you are planning to partake in a Great Rift Valley safari in Kenya, chances are you'll be visiting Lake Naivasha or Lake Nakuru.
		Situated in the heart of the Rift Valley, Lake Nakuru is one Kenya's most famous soda lakes.
	safari.go2africa.com /kenya/great-rift-valley-safari.asp (411 words)

	Art First (Site not responding. Last check: 2007-10-17)
		Africa Rifting is Papageorge's third major undertaking in a fifteen year period that deals with fabulous, remote African landscapes.
		In each environment - Gold mine dumps in South Africa, the Sowa Salt Pan in Botswana and Mount Kilimanjaro in the Great East African Rift Valley - she has explored the idea of social and geological rift through the concept of a mutating "barrier" symbol.
		She began in June 2001 on the African Coast with a ceremony on the great dunes of Namibia, one of the most spectacular landscapes on earth.
	www.artfirst.co.uk /pe_papageorge_03.html (523 words)

	Something Happened Here: Africa's Great Rift (Site not responding. Last check: 2007-10-17)
		Give examples of humans interacting with their environment in the Rift Valley region and recognize how behaviors modify and are modified by the environment.
		The Western Rift, which is believed to have occurred from south to north, is also delineated by a series of lakes.
		The rift valleys of Africa are the most recent evidence of the pulling forces that affect the African "plate." In the future, East Africa may split off just as the Arabian peninsula and Madagascar did earlier.
	fga.freac.fsu.edu /academy/afrift.htm (3374 words)

	News page
		You see the Great Wall of China and the great African Rift Valley," Ugandan President Yoweri Museveni told a luncheon audience of travel agents and travel organizations, Thursday.
		It is expected to put US$194m in the east African nation's coffers this year and the country is aiming for earnings of US$360m per year from the tourism industry over the next 10 years.
		In an interview with allAfrica.com, Museveni insisted that protective subsidies in the U.S. and Europe have to be removed and that African nations were being unfairly penalized in the aftermath of trade talks in Cancun, Mexico.
	www.africasummit.org /news/allafrica_uganda.html (727 words)

	Geography : His Land - Israel My Beloved (Site not responding. Last check: 2007-10-17)
		Running through the land is a deep gash in the earth, known as the Jordan Valley (north of the Dead Sea) and the Aravah Valley (south of the Dead Sea).
		In 1799, Napoleon conquered this region and assessed this valley as the greatest arena to be found anywhere in the world for a battle.
		This valley separates the regions of the Galilee in the north from the mountains of Samaria and the coastal plains to the south.
	www.israelmybeloved.com /land/geography/geography_overview.htm (951 words)

	Anthropology Insider (Site not responding. Last check: 2007-10-17)
		Excerpt from the The African 26/10/01: The Rift Valley is a story in and of itself....I will try to describe it with the help of this newspaper article, but I know I cannot do it justice.
		The process that causes rift valleys is not fully understood but it is generally agreed that plate tectonics is most likely responsible.
		Because of this and because of what is known of the origins of rift valley lavas in Kenya and Ethiopia it seems safest to regard the rift zones as earlier attempts at ocean openings.
	monkey.sbs.ohio-state.edu /Newsletter/SP02/notes_from_field.htm (2203 words)

	Serengeti Africa \| African national park famous for wildebeest great migration \| Abacus African Safaris
		A safari to Tanzania’s Serengeti National Park is an African adventure to a place with the greatest and most varied wildlife population on this planet.
		The Serengeti National Park encompasses an area as large as the state of Connecticut and is part of a much larger eco system embracing Kenya’s Masai Mara to the north and the Ngorongoro Conservation Area in the south east.
		A large population of non-migratory wildlife includes the great predators of the Serengeti, including lion, leopard, hyena, cheetah and the Nile crocodile.
	african-safaris-adventures.com /plains_of_serengeti_abacus_african_safaris.htm (943 words)

	EdUKaid - Tanzania (Site not responding. Last check: 2007-10-17)
		The geography is dominated by the great African rift valley which forms the highlands and enormous lakes of Tanzania and her neighbours.
		Arabs from the south of the Arabian peninsula have traded and settled along the east African coast for over a millennium bringing with them their religion, culture and language.
		Eventually east Africa was divided up between the great powers at the end of the 19th Century and the land mass of Tanzania became German East Africa with Zanzibar becoming a British protectorate.
	www.edukaid.com /tanzania.html (457 words)

	Plate tectonics Article, Platetectonics Information (Site not responding. Last check: 2007-10-17)
		Divergent boundaries are typified in oceanic lithosphere by the rifts of the oceanic ridge system, including the Mid-Atlantic Ridge, and in continentental lithosphere by rift valleys such as the famous East African Great Rift Valley.
		If one viewsthe sea floor between the fracture zones as conveyor belts carrying the ridge on each side of the rift away from the spreadingcenter the action becomes clear.
		A great rift valley, like the one now on the other side of Africa, had split into the Atlantic--and was still at work.
	www.anoca.org /plates/boundaries/plate_tectonics.html (1926 words)

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