Earth movements(endogenetic forces)By Mandeep Kaur Sandhu
• Geological changes can be long time or  short time.
Epeirogenic            diastrophicEndogenic                           Orogenic  forces             sudden
• Sudden forces
• Diastrophic forces (slow forces)  – Epeirogenetic (continent origin)  – Orogenic (mountain forming)      epeirogenetic  ...
• Upward forces  – Upliftment of continents  – Upliftment of coastal land
• Downward movements  – Submergence of     land    area    (subsidence)  – Submergence of land near    coast(submergence)
• Orogenic forces are horizontal in nature  either  – opposite to each other (tensional or divergent    forces)
•   towards same direction (compressional or convergent ).       • Crustal folding       • Crustal warping
• Folds  – Wave like bends  – Due to tangential compressive forces  – Anticlines and Synclines
• Types of Folds  – Symmetrical folds  – Due to regular and moderate forces
• Asymmetrical folds
• Monoclinal folds  – More possible to cause faults at intense    pressure of the horizontal forces.
• Isoclinal folds
• Recumbent folds
• Overturned folds
• Plunge folds
• Fan folds  – Anticlorium and synclorium
• Faults  – Crustal rocks are displaced  – Due to tensional forces
• Types of Faults  – Normal faults  – Reverse faults  – Lateral faults or strike faults  – Step faults
Thanks …
 earth movements Endogenic forces
 earth movements Endogenic forces
 earth movements Endogenic forces
 earth movements Endogenic forces
 earth movements Endogenic forces
 earth movements Endogenic forces
 earth movements Endogenic forces
 earth movements Endogenic forces
 earth movements Endogenic forces
 earth movements Endogenic forces
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earth movements Endogenic forces

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earth movements Endogenic forces

  1. 1. Earth movements(endogenetic forces)By Mandeep Kaur Sandhu
  2. 2. • Geological changes can be long time or short time.
  3. 3. Epeirogenic diastrophicEndogenic Orogenic forces sudden
  4. 4. • Sudden forces
  5. 5. • Diastrophic forces (slow forces) – Epeirogenetic (continent origin) – Orogenic (mountain forming) epeirogenetic orogenic Tensional Upward (crustal (emergence) Fracture) Compressional Downward (crustal (submrgence) Bending)
  6. 6. • Upward forces – Upliftment of continents – Upliftment of coastal land
  7. 7. • Downward movements – Submergence of land area (subsidence) – Submergence of land near coast(submergence)
  8. 8. • Orogenic forces are horizontal in nature either – opposite to each other (tensional or divergent forces)
  9. 9. • towards same direction (compressional or convergent ). • Crustal folding • Crustal warping
  10. 10. • Folds – Wave like bends – Due to tangential compressive forces – Anticlines and Synclines
  11. 11. • Types of Folds – Symmetrical folds – Due to regular and moderate forces
  12. 12. • Asymmetrical folds
  13. 13. • Monoclinal folds – More possible to cause faults at intense pressure of the horizontal forces.
  14. 14. • Isoclinal folds
  15. 15. • Recumbent folds
  16. 16. • Overturned folds
  17. 17. • Plunge folds
  18. 18. • Fan folds – Anticlorium and synclorium
  19. 19. • Faults – Crustal rocks are displaced – Due to tensional forces
  20. 20. • Types of Faults – Normal faults – Reverse faults – Lateral faults or strike faults – Step faults
  21. 21. Thanks …

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