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With no outlet, Lake Turkana loses 2.3 meters of water every year to evaporation, and its level is sensitive to climatic and seasonal fluctuations. For purposes of comparison, the historic level of Lake Turkana declined from a high of 20m above today's level in the 1890s to the same level as today in the 1940s and 1950s.
Lake Turkana sits at the center of the Turkana Basin and is flanked by the Chalbi Desert to the east, the Lotakipi Plains to the north, Karasuk to the west and Samburu to the south. [4] Included within these regions are desert scrub, desert grass and shrubland, and scattered acacia or open grasslands. [4]
These glacial advances loosely correlate to minima in the level of Lake Turkana around 4800, 4200, 3700, 3500, 3000, 2500, 2500, 2000 and 1600-1400 ya. [31] As glaciers would have advanced during the dry phases when the temperature was cooler, it is not known why the correlation is not better, but it could be due to inaccuracies in dating. [21]
Lakes formed in the caldera of the Menengai volcano [503] and in the Chalbi region east of Lake Turkana; the lake covered an area of about 10,000 square kilometres (3,900 sq mi). [504] A 1,600 square kilometres (620 sq mi) large and 50 metres (160 ft) deep Lake Magadi formed in the early Holocene, [141] generating the "High Magadi Beds ...
Lake Turkana and South Island viewed from the east from an airplane. On South Island can be found a N-S (north to south) trending volcanic ridge which rises to about a height of 300 m. Along this ridge can be found several volcanic cones, which some rise to about a height of 800 m (above sea level, 320 m above the lake
The Chalbi Desert is located in between Mount Marsabit and Lake Turkana. [1] [2] The area is 110 km long and 10 to 20 km wide and it extends over 100,000 km 2. [3] The area is composed of an ancient lake-bed, rocky surface and lava regions. [4] The ancient lake-bed of Chalbi used to be a shallow lake around 10,000 to 11,000 years ago. [5]
Lamphear (1988) noted that chronological reckonings based on the Turkana age-set system suggested a date in the late eighteenth or early nineteenth centuries. He notes that concurrent drought traditions suggested in the chronological reconstruction of neighboring communities indicates that the drought affected much of the Rift Valley region.
Manemanya (GcJh5) is an archaeological site within the Lake Turkana basin in northern Kenya. It is a communal burial site built almost 5,000 years ago and is associated with the advent of pastoralism in eastern Africa during the Pastoral Neolithic period. [1] Manemanya is located 1 km east of Lesodok hill, on the western shores of Lake Turkana.