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Structural G eology

Structural G eology . By: Maverick Irwin. faults. Fault plane. Hanging wall. The hanging wall of a fault is above the fault plane , and moves vertically horizontally or in both directions relative to the footwall.

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Structural G eology

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  1. Structural Geology By: Maverick Irwin

  2. faults Fault plane Hanging wall The hanging wall of a fault is above the fault plane , and moves vertically horizontally or in both directions relative to the footwall The fault plane is the center point of a fault, and is the area of the fault in which the slippage occurs foot wall The footwall is below the fault plane and is looked at as a base from which the hanging wall is supported

  3. Types of faults • Normal • Reverse (thrust) • Strike slip

  4. Normal - reverse ∙Hanging wall moves down relative to fault plane ∙results in an extension of the crust ∙Hanging wall move upward relative to fault plane ∙results in a compression of the crust ∙Hanging wall ∙Foot wall ∙Vertical fault plane

  5. Strike slip Left lateral fault A strike slip fault has a wall on both sides of the fault plane that move laterally or horizontally . As the pictures show they can have a center force or fault zone that is driving to the left or to the right. This will decide which way the walls will move. Right lateral fault

  6. folds limbs Axial plane

  7. Types of folds • Anticline • Syncline • Monocline • Overturned • Recumbent • Plunging • Domes and basins

  8. anticline This type of fold is known as an anticline, its layer are laid such in a way that the oldest layers are on the inner most part of the fold and the youngest are the outer layers. It concaves downward

  9. syncline One could say the structure of a syncline is the opposite of that of a anticline. Its layers dip towards the center or the structure It has downward curving folds

  10. A monocline has all of the layers going in the same direction in a downward horizontal position. Monocline

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