Describe how Lake Victoria was formed

Describe how Lake Victoria was formed (6marks)

  • Internal land forming processes caused vertical earth movements which resulted in down warping of a huge region.
  • Down warping led to the formation of a huge depression/basin.
  • Uplifting of landmasses around the depression during the formation of the Mau Ranges and the Ruwenzori altered the drainage of the area.
  • Some rivers from Kenya which flowed westwards were cut off and diverted into the depression.
  • Some rivers in Uganda such as Katonga, Kafu and Kagera were reversed to flow into the depression.
  • Deposition of water into the depression caused further downwarping.
  • The mass of water which accumulated formed Lake Victoria.

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