Get premium membership and access revision papers with marking schemes, video lessons and live classes.

Processing. Please wait.

In this lesson we are going to learn about the metamorphic rocks and the distribution of rocks in Kenya

Answer Text:
3. Metamorphic Rocks
- Rocks which have changed their physical appearance and chemical properties as a result of subjection to great heat and pressure e.g.
• Gneiss from granite
• Slate from clay
• Marble from limestone
• Quartzite from sandstones
Distribution of Major Rocks in Kenya
Eastern Kenya region
• The major rocks are metamorphic rocks e.g. marble in parts of Machakos and schist and gneiss in parts of Kitui.
• Volcanic rocks in Yatta plateau and Kapiti plains.
• Sedimentary rocks e.g. limestone rocks used in Bamburi for cement manufacturing.
Coastal Region
• Major rocks are sedimentary rocks e.g. limestone used in Bamburi for cement manufacture.
• There are volcanic rocks in Tsavo rich in ground water resources.
Northern and N.E Region
• Dominated by sedimentary sands.
• There are volcanic rocks in Mt. Marsabit and around Rift Valley.
Rift Valley and Kenya Highlands
• Dominated by volcanic rocks
• There are metamorphic rocks which have resulted from changing of igneous rocks.
L. Victoria Basin
• Granite and gneiss dominate Western Kenya where they form high rocky hills called
granitic tors common in Kisii, Maragoli and Bunyore areas.
• Sedimentary rocks deposited by rivers e.g. Nyando, Nzoia, Yala and Sondu.