KC

Kritika ChaudaryAIR 312

Question Q.7GS1GS1

Alfred Wegener in 1912 proposed the continental drift theory, which is a pioneer to other theory of sea floor spreading

Open scan (p.15)

Introduction

Alfred Wegener in 1912 proposed the continental drift theory, which is a pioneer to other theories such as sea floor spreading (Hess), Plate Tectonics Theory (Holmes) or Plate tectonics theory (Wegener).

31 words

Main Body

Continental Drift Theory:

Refers to constant slow movement of continents over hundred of years
Earlier all the continents were together → large surrounded by ocean → Panthalassa
Continents drifted to form 'Laurasia' & Gondwana land separated by Tethys Sea

Evidence:

1Sea saw fit of Crete & Negillo fits well in the western coast of Africa
2Gondwanan deposits & amoral fossils
Fossils of Eden & Lemurs are found in earthwide Laurasian continent
Beptic similar way of origination

Places Deposits:

Glacial deposits occur at 6 landward forming Gondwanna
4Gold coast
Mexican gold is supposedly connected to gold coast of India
Smokey gold properties & promise had no gold courses

Forces Responsible:

1Pole-fleeing force → continents drifted to avoid the polar regions, leading to their movement
2Tidal force → Alfred Wagner believed the gravitation pull of sun & moon are so strong to create continental drifters

Continental drift theory had certain limitations as the forces responsible been lack empirical evidence but this theory led to 'Plate Tectonics Theory' by Birtle, Morgan & McKenzie, wheich is widespread in explaining volcanic explosions & lecture Glyptic.

193 words8 paragraphs8 bullet points

Conclusion

Continental drift theory had certain limitations as the forces responsible lack empirical evidence but this theory led to 'Plate Tectonics Theory' by Birtles, Morgan & McKenzie, which is widespread in explaining volcanic explosions and lecture glyptic

36 words

  • Correctly identifies key scientists and theories
  • Provides clear structure with evidence section
  • Mentions specific geological formations

Topper

Kritika Chaudary

AIR 312

Subject & Paper

GS1GS1

Topic

Salient features of World's Physical Geography

Geological Structures and Theories

Continental Drift and Plate Tectonics

Writing Stats

260

Total words

8

Paragraphs

8

Bullets