Landforms found at different plate boundaries.

Landforms found at different plate boundaries.

1. Fold mountains

   • They are formed when plates move towards each other and colide
     • The resultant compressional force creates immense pressure which causes the layers of rocks to buckle and fold
       • Process known as folding
     • At convergent plate boundaries

2. Rift Valleys and Block Mountains

   • Formed at divergent plate boundaries
     • When plates are pulled apart, it gives rise to faults
       • Fault = a fracture in the rocks along which the rocks are displaced
       • Tensional forces from the movements result in parts of the crust being fracture
         • Process : Faulting
   • Rift Valley is a valley with steep sides that is formed when sections of the crust extend along the fault lines.
     • The central block of land subsides between 2 parallel faults due to tensional force.
     • Sections left standing beside the rift valley are the block mountains.
   • Block Mountains
     • Block of land with steep sides
     • Formed when sections of the crust extend along fault lines and surround land sink due to tensional forces
     • Block of land let standing higher than surrounding land = block mountain