The Great Rift Valley Kenya
The Great Rift Valley Kenya: The Great Rift Valley covers over 8,700 Kms. (5,400 miles) running from Jordan Valley in the Middle East and taking in the whole of the Red Sea before cutting through Ethiopia, Kenya, Tanzania, Mozambique and ﬁnally reaching the Indian Ocean at Beira near the Zambezi River. It is much more deﬁned in Kenya than anywhere else.
The Great Rift Valley Kenya – Gregorian Rift
That section of the Valley in Kenya, also known as the “Gregorian Rift” after J. W. Gregory, the Great geologist who ﬁrst described it, is dotted with recent volcanoes like Mt. Longonot (still partially active), Suswa, Ebum, Menengai, Londiani, Kakorinyo, Central and Northern Islands in Lake Turkana. It also contains seven lakes all of which have no outlets. These are Lake Turkana (The Jade Sea), Baringo, Bogoria, Nakuru, Elementaita, Naivasha and Lake Magadi.
When it rains on the Rift Valley escarpments and on the surrounding highlands, water runs down rivers and streams to the lake basins. The high rate of evaporation is the only major way through which water escapes from the lakes. The evaporation leaves behind a large accumulation of salts and minerals in the lakes.
This makes all but two of the lakes (Naivasha and Baringo) contain high alkaline contents, a factor that makes the highly alkaline soils in and around the lakes turn bones and ivory into fossils. The fossilization process over the years has made Rift Valley in the country preserve remains of ancient animals and human beings into the form of fossils; thus affording us important information of the ancient past.