The
Nubian Swell is a geologic structural uplift in northern
AfricaAfrica is the world's second-largest and second most-populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area. With a billion people in 61 territories, it accounts for about 14.8% of the...
that trends east-west and separates the lower Nile of
EgyptEgypt , officially the Arab Republic of Egypt, is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Western Asia...
from the
SudanSudan is a country in northeastern Africa. It is the largest country in Africa and in the Arab World, and tenth largest in the world by area...
basin. The Nubian Swell has been geologically active since early
MesozoicThe Mesozoic Era is one of three geologic eras of the Phanerozoic eon. The division of time into eras dates back to Giovanni Arduino, in the 18th century, although his original name for the era now called the "Mesozoic" was "Secondary" The Mesozoic Era is one of three geologic eras of the...
times, and portions are still active. The Nile is able to traverse the uplift through geologic faults and fractures, and four of six cataracts of the Nile occur where the river crosses the uplift.
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The
Nubian Swell is a geologic structural uplift in northern
AfricaAfrica is the world's second-largest and second most-populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area. With a billion people in 61 territories, it accounts for about 14.8% of the...
that trends east-west and separates the lower Nile of
EgyptEgypt , officially the Arab Republic of Egypt, is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Western Asia...
from the
SudanSudan is a country in northeastern Africa. It is the largest country in Africa and in the Arab World, and tenth largest in the world by area...
basin. The Nubian Swell has been geologically active since early
MesozoicThe Mesozoic Era is one of three geologic eras of the Phanerozoic eon. The division of time into eras dates back to Giovanni Arduino, in the 18th century, although his original name for the era now called the "Mesozoic" was "Secondary" The Mesozoic Era is one of three geologic eras of the...
times, and portions are still active. The Nile is able to traverse the uplift through geologic faults and fractures, and four of six cataracts of the Nile occur where the river crosses the uplift.