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A map of East Africa showing some of the historically active volcanoes (as red triangles) and the Afar Triangle (shaded at the center), which is a so-called triple junction (or triple point) where three plates are pulling away from one another: the Arabian plate and two parts of the African plate—the Nubian and Somali—splitting along the East African Rift Zone Main rift faults, plates ...
The Comoros island chain in the Mozambique Channel is the result of the rifting of Madagascar away from Africa as well as "hotspot" mantle plume activity. The region is also impact by seismicity and deformation associated with the East African Rift system and the Comoros region is one of the best places in the world to study rift-hotspot interactions.
A simplified geologic map of the Afar Depression. The Afar Depression is the product of a tectonic triple-rifts junction (the Afar triple junction), where the spreading ridges forming the Red Sea and the Gulf of Aden emerge on land and meet the East African Rift. The conjunction of these three plates of Earth's crust is near Lake Abbe.
Map of the Great Rift Valley. The Great Rift Valley (Swahili: Bonde la ufa) is a series of contiguous geographic depressions, approximately 6,000 or 7,000 kilometres (4,300 mi) in total length, the definition varying between sources, that runs from the southern Turkish Hatay Province in Asia, through the Red Sea, to Mozambique in Southeast Africa.
East African Rift Valley, Kenya ISS 2012. Lake Turkana, at the northern end of the rift, is 250 kilometres (160 mi) long, between 15 kilometres (9.3 mi) and 30 kilometres (19 mi) wide and is 125 metres (410 ft) at its greatest depth. [13] Most of the other lakes are shallow and poorly drained, and therefore have become alkaline.
Researchers' new insight into the splitting process of the East Africa Rift systems show where an ocean will likely be formed if the continent's split continues.
There are many active volcanic areas centralized in the East African Rift System in comparison to the other areas in the Afro-Arabian rift system. Many protruding horsts show successive layers of flood basalts, which can be approximately dated using 40 Ar/ 39 Ar-isotope dating. It is found to be approximately 30 million years old. [1]
More recently, as East Africa begins to split from the rest of the continent, the two arms of the East African Rift System have developed on either side of the country. The western arm of the rift system runs through western Uganda, where it is known as the Albertine Rift , whilst the eastern arm runs immediately east of its border with Kenya ...