Ch 3: Folding and faulting
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Questions and Answers

What geological processes shape the Earth's crust through the movements of tectonic plates?

  • Volcanic eruptions and earthquakes
  • Subduction and uplift
  • Folding and faulting (correct)
  • Weathering and erosion

    • Under what condition are rock layers most prone to folding?

  • When they are rich in fossils
  • When exposed to acidic rain
  • When subjected to extreme heat
  • When they experience intense pressure (correct)

    • What causes rock layers to buckle and fold?

  • Intense pressure from tectonic plate movements (correct)
  • Impact from meteorites
  • Volcanic activity
  • Erosion by wind

    • Which geological feature results from the intense pressure causing rock layers to bend and fold?

    <p>Fold structures</p> Signup and view all the answers

    What is an example of large-scale folding mentioned in the text?

    <p>Formation of fold mountains like the Himalayas</p> Signup and view all the answers

    Under what conditions does an Overthrust Fold (Nappe) occur?

    <p>Under extreme pressure causing breaking and sliding of rock layers</p> Signup and view all the answers

    How is a Recumbent Fold characterized?

    <p>By having limbs that are nearly horizontal</p> Signup and view all the answers

    What is the key difference between a syncline and an anticline?

    <p>The direction of the fold</p> Signup and view all the answers

    How are fold mountains characterized?

    <p>By arising from the folding of the Earth's crust at convergent plate boundaries</p> Signup and view all the answers

    What landform is associated with rocks being pulled apart due to tension?

    <p>Rift Valleys (Grabens)</p> Signup and view all the answers

    Which tectonic force leads to the formation of reverse faults or folds?

    <p>Compression</p> Signup and view all the answers

    What is a key impact of fold mountains on agriculture?

    <p>Promotion of terrace farming due to suitable grazing conditions</p> Signup and view all the answers

    What type of movement causes strike-slip faults like the San Andreas Fault?

    <p>Lateral Forces</p> Signup and view all the answers

    Which fault-related landform is characterized by elevated blocks formed between faults?

    <p>Block Mountains (Horsts)</p> Signup and view all the answers

    'Scenic Value and Tourism' is associated with what geological feature?

    <p>Fault-related landscapes</p> Signup and view all the answers

    What kind of fault is generated by rocks being pushed together?

    <p>Reverse Faults or Folds</p> Signup and view all the answers

    What is one common human activity associated with fold mountains?

    <p>Terrace farming on slopes</p> Signup and view all the answers

    What is the main difference between a monocline and a syncline?

    <p>Monoclines are upward arch-like folds, while synclines are downward U-shaped folds</p> Signup and view all the answers

    What is the primary characteristic that distinguishes an anticline from a syncline?

    <p>Anticlines are upward arch-like folds, while synclines are downward U-shaped folds</p> Signup and view all the answers

    What distinguishes fold mountains from block mountains?

    <p>Fold mountains result from folding at plate boundaries, while block mountains form due to faulting</p> Signup and view all the answers

    Which geological feature is associated with rocks being pushed together due to compression?

    <p>Reverse fault</p> Signup and view all the answers

    What activity is commonly pursued on fold mountain slopes?

    <p>Terrace farming</p> Signup and view all the answers

    Which tectonic force results in normal faults due to rocks being pulled apart?

    <p>Tension</p> Signup and view all the answers

    What landform is created by depressed blocks between faults?

    <p>Graben</p> Signup and view all the answers

    What is the main impact of faulting on human activities?

    <p>Raises concerns about earthquake risks</p> Signup and view all the answers

    Which type of fold has one limb steeply inclined similar to an anticline?

    <p>Overfold</p> Signup and view all the answers

    What geological phenomenon arises from the folding of the Earth's crust due to compression at convergent plate boundaries?

    <p>Fold Mountains</p> Signup and view all the answers

    What geological processes are responsible for shaping the Earth's crust through the movements of tectonic plates?

    <p>Folding and faulting</p> Signup and view all the answers

    Under what conditions do folds primarily form?

    <p>At the boundaries of tectonic plates</p> Signup and view all the answers

    What type of fold involves the rock breaking and sliding over itself under extreme pressure?

    <p>Overthrust Fold (Nappe)</p> Signup and view all the answers

    Which type of fold is characterized by nearly horizontal limbs forming under very high pressure?

    <p>Recumbent Fold</p> Signup and view all the answers

    How do sedimentary rocks contribute to the formation of folds?

    <p>By compressing and bending under pressure</p> Signup and view all the answers

    What results from immense pressure on rock layers causing them to buckle and fold?

    <p>Creation of fold structures</p> Signup and view all the answers

    Which geological feature arises from the collision between Indian and Eurasian plates?

    <p>Himalayas</p> Signup and view all the answers

    What is the primary factor that determines the type and intensity of folding in rocks?

    <p>The properties of the rock and the magnitude of compressive forces</p> Signup and view all the answers

    Which type of fold is characterized by limbs that are nearly horizontal?

    <p>Recumbent Fold</p> Signup and view all the answers

    What landforms are created as a result of folds and faulting processes?

    <p>Mountains, valleys, and other diverse landscapes</p> Signup and view all the answers

    Which geological phenomenon is associated with the collision between the Indian and Eurasian plates?

    <p>Birth of fold mountains like the Himalayas</p> Signup and view all the answers

    Under what conditions does an Overthrust Fold (Nappe) occur?

    <p>Under extreme pressure causing both folding and sliding over itself</p> Signup and view all the answers

    What role do sedimentary rocks play in folding?

    <p>They contribute to folding due to their horizontal layer deposition</p> Signup and view all the answers

    Which geological process shapes the Earth's crust through tectonic plate movements?

    <p>Folding and faulting</p> Signup and view all the answers

    What distinguishes an Overthrust Fold (Nappe) from a Recumbent Fold?

    <p>The occurrence of sliding over itself in addition to folding</p> Signup and view all the answers

    What kind of tectonic force leads to the formation of fold mountains like the Himalayas?

    <p>Convergent forces causing plates to collide and compress</p> Signup and view all the answers

    What geological feature arises from immense pressure on rock layers causing them to buckle and fold?

    <p>Fold mountains creation</p> Signup and view all the answers

    What is the key characteristic that distinguishes a Monocline from a Syncline?

    <p>Step-like fold structure</p> Signup and view all the answers

    How are Fold Mountains primarily formed?

    <p>Through the folding of the Earth's crust due to compression at convergent plate boundaries</p> Signup and view all the answers

    What is the main geological process responsible for shaping the Earth's crust through tectonic plate movements?

    <p>Folding and faulting</p> Signup and view all the answers

    Which geological feature is associated with elevated blocks formed between faults?

    <p>Block Mountains (Horsts)</p> Signup and view all the answers

    What type of fault is likely to form when rocks are pushed together?

    <p>Reverse fault or fold</p> Signup and view all the answers

    What is the primary impact of Faulting on Scenic Value and Tourism?

    <p>Creating dramatic landscapes for tourism</p> Signup and view all the answers

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