Physical geography Chapter 4 Rocks video

Mineral Rocks The process responsible for the formation of igneous rocks in East Africa Plutonic rocks/ Abyssal rocks: Hypabyssal/intermediate rocks: Volcanic rocks/extrusive rocks: Characteristics of Igneous rocks Importance/uses of igneous rocks Characteristics of sedimentary rocks Importance of sedimentary rocks Characteristics of metamorphic rocks Importance of metamorphic rocks Influence of igneous rocks on landform development in East Africa Influence of Rock structure on the development of drainage patterns in East Africa. 1. Rectilinear or Trellis drainage pattern 2. Parallel drainage pattern 3. Dendritic and radial drainage patterns. 4. Radial drainage pattern The relationship between rock hardness and types of slope formation in East Africa