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 (C)</p>
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What is an example of large-scale folding mentioned in the text?

<p>Formation of fold mountains like the Himalayas (D)</p>
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Under what conditions does an Overthrust Fold (Nappe) occur?

<p>Under extreme pressure causing breaking and sliding of rock layers (B)</p>
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How is a Recumbent Fold characterized?

<p>By having limbs that are nearly horizontal (C)</p>
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What is the key difference between a syncline and an anticline?

<p>The direction of the fold (D)</p>
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How are fold mountains characterized?

<p>By arising from the folding of the Earth's crust at convergent plate boundaries (C)</p>
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What landform is associated with rocks being pulled apart due to tension?

<p>Rift Valleys (Grabens) (A)</p>
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Which tectonic force leads to the formation of reverse faults or folds?

<p>Compression (C)</p>
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What is a key impact of fold mountains on agriculture?

<p>Promotion of terrace farming due to suitable grazing conditions (B)</p>
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What type of movement causes strike-slip faults like the San Andreas Fault?

<p>Lateral Forces (A)</p>
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Which fault-related landform is characterized by elevated blocks formed between faults?

<p>Block Mountains (Horsts) (D)</p>
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'Scenic Value and Tourism' is associated with what geological feature?

<p>Fault-related landscapes (D)</p>
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What kind of fault is generated by rocks being pushed together?

<p>Reverse Faults or Folds (D)</p>
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What is one common human activity associated with fold mountains?

<p>Terrace farming on slopes (A)</p>
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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 (B)</p>
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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 (C)</p>
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What distinguishes fold mountains from block mountains?

<p>Fold mountains result from folding at plate boundaries, while block mountains form due to faulting (C)</p>
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Which geological feature is associated with rocks being pushed together due to compression?

<p>Reverse fault (C)</p>
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What activity is commonly pursued on fold mountain slopes?

<p>Terrace farming (C)</p>
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Which tectonic force results in normal faults due to rocks being pulled apart?

<p>Tension (A)</p>
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What landform is created by depressed blocks between faults?

<p>Graben (C)</p>
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What is the main impact of faulting on human activities?

<p>Raises concerns about earthquake risks (B)</p>
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Which type of fold has one limb steeply inclined similar to an anticline?

<p>Overfold (C)</p>
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What geological phenomenon arises from the folding of the Earth's crust due to compression at convergent plate boundaries?

<p>Fold Mountains (A)</p>
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What geological processes are responsible for shaping the Earth's crust through the movements of tectonic plates?

<p>Folding and faulting (A)</p>
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Under what conditions do folds primarily form?

<p>At the boundaries of tectonic plates (A)</p>
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What type of fold involves the rock breaking and sliding over itself under extreme pressure?

<p>Overthrust Fold (Nappe) (A)</p>
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Which type of fold is characterized by nearly horizontal limbs forming under very high pressure?

<p>Recumbent Fold (D)</p>
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How do sedimentary rocks contribute to the formation of folds?

<p>By compressing and bending under pressure (D)</p>
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What results from immense pressure on rock layers causing them to buckle and fold?

<p>Creation of fold structures (A)</p>
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Which geological feature arises from the collision between Indian and Eurasian plates?

<p>Himalayas (D)</p>
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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 (C)</p>
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Which type of fold is characterized by limbs that are nearly horizontal?

<p>Recumbent Fold (C)</p>
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What landforms are created as a result of folds and faulting processes?

<p>Mountains, valleys, and other diverse landscapes (A)</p>
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Which geological phenomenon is associated with the collision between the Indian and Eurasian plates?

<p>Birth of fold mountains like the Himalayas (C)</p>
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Under what conditions does an Overthrust Fold (Nappe) occur?

<p>Under extreme pressure causing both folding and sliding over itself (D)</p>
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What role do sedimentary rocks play in folding?

<p>They contribute to folding due to their horizontal layer deposition (C)</p>
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Which geological process shapes the Earth's crust through tectonic plate movements?

<p>Folding and faulting (A)</p>
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What distinguishes an Overthrust Fold (Nappe) from a Recumbent Fold?

<p>The occurrence of sliding over itself in addition to folding (D)</p>
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What kind of tectonic force leads to the formation of fold mountains like the Himalayas?

<p>Convergent forces causing plates to collide and compress (B)</p>
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What geological feature arises from immense pressure on rock layers causing them to buckle and fold?

<p>Fold mountains creation (D)</p>
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What is the key characteristic that distinguishes a Monocline from a Syncline?

<p>Step-like fold structure (B)</p>
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How are Fold Mountains primarily formed?

<p>Through the folding of the Earth's crust due to compression at convergent plate boundaries (A)</p>
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What is the main geological process responsible for shaping the Earth's crust through tectonic plate movements?

<p>Folding and faulting (D)</p>
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Which geological feature is associated with elevated blocks formed between faults?

<p>Block Mountains (Horsts) (A)</p>
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What type of fault is likely to form when rocks are pushed together?

<p>Reverse fault or fold (D)</p>
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What is the primary impact of Faulting on Scenic Value and Tourism?

<p>Creating dramatic landscapes for tourism (A)</p>
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