SD

Suyash DwivediAIR 94· 2022

Question 18GS1GS1

Describe the process of rift valley formation, with special emphasis on the Great Rift Valley System.

Open scan (p.42)

Introduction

Rift valley is a structural valley which is formed due to the tectonic movement of blocks.

16 words

Main Body

Rift valley is a structural valley which is formed due to the tectonic movement of blocks. The Great Rift Valley system runs from the Horn of Africa all through the region to lake Victoria. Phase I - Formation of fault - there is the formation of rift valley begins with generation of a TRIPLE JUNCTION. One

Array of which is a piled over and it expands along the rift lines. arms. Phase II - with the generation of faults the existence of forces - whether. (Diagram showing: Triple Junction with labeled parts - uplifted block, tensile force, great junction. Second diagram showing: normal fault eg. Great Rift Valley, Rift, with tensile force eg. East Coast Rift, Black Print Cross). Phase III - the movement along the faultline generally

Costly quality of deep sided depti. Eg. along cided c and ensuing and plain valley, all the raff gets accumulated in the valley resulting in formation of blocs. Eg. steep sided slope of Great Rift Valley, and several blocs like Lake Malawi, Myanmar Tanganyika ose present in it. The Great Rift Valley of Africa is thus a great example of rift valley formation.

191 words1 paragraphs

Diagram

Multiple diagrams showing: (1) Triple Junction formation with uplifted block and tensile forces; (2) Normal fault structure showing rift formation; (3) Examples including East African Rift and Black Print Cross indicating reverse fault structures.

  • Clear definition of rift valley
  • References specific geographic location (Horn of Africa to Lake Victoria)
  • Begins to explain formation process phases
  • Provides phases of rift formation
  • Uses diagrams to illustrate concepts
  • Shows different fault types
  • Provides specific geographic examples of rift valleys
  • Explains sediment accumulation process
  • Connects to Great Rift Valley context

Topper

Suyash Dwivedi

AIR 942022

Subject & Paper

GS1GS1

Topic

Important Geophysical Phenomena

Rift valley formation

Great Rift Valley System

Writing Stats

207

Total words

1

Paragraphs