Geology of Folding

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Questions and Answers

What is the term for the point of maximum curvature on a fold?

  • Crest Point
  • Axial Point
  • Hinge Point (correct)
  • Trough Point

What type of fold is characterized by a curved shape and a neutral surface?

  • Monocline
  • Synform
  • Anticline
  • Cylindrical Fold (correct)

What is the term for the angle between the axial surface and the horizontal?

  • Plunge
  • Climb
  • Dip (correct)
  • Strike

What type of fold is characterized by a repeated pattern of folding?

<p>Refold (D)</p> Signup and view all the answers

What is the term for the surface that passes through the hinge point and is parallel to the axial plane?

<p>Enveloping Surface (C)</p> Signup and view all the answers

What type of fold is characterized by a linear or curved shape with a horizontal axial surface?

<p>Monocline (D)</p> Signup and view all the answers

What is the term for the point of lowest elevation on a fold?

<p>Trough point (D)</p> Signup and view all the answers

What is the spatial relationship between the axial trough line and the fold?

<p>The axial trough line is parallel to the fold (A)</p> Signup and view all the answers

What is the term for a fold with an inclined axial plane?

<p>Inclined fold (C)</p> Signup and view all the answers

What is the process by which fold lines are formed?

<p>Ductile deformation (A)</p> Signup and view all the answers

What is the term for a fold with a curved hinge?

<p>Hinge fold (C)</p> Signup and view all the answers

What is the purpose of calculating the median surface?

<p>To calculate the distance between inflection points (C)</p> Signup and view all the answers

What is the characteristic of a harmonious fold?

<p>Similar layer thickness and spacing (C)</p> Signup and view all the answers

What type of fold has a horizontal axis and is formed due to horizontal bending?

<p>Horizontal fold (D)</p> Signup and view all the answers

What is the name of the process by which folds are formed due to compression of layers?

<p>Flexural slip (B)</p> Signup and view all the answers

What is the term used to describe the plunge of a fold?

<p>Plunge (A)</p> Signup and view all the answers

What type of fold has a plunging axis and is formed due to compression?

<p>Plunging fold (A)</p> Signup and view all the answers

What is the term used to describe the orientation of a fold axis relative to the horizontal plane?

<p>Attitude (D)</p> Signup and view all the answers

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