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Zorluk: OrtaWeathering and Mass Wasting Processes

A coastal cliff composed of permeable sandstone overlying impermeable clay becomes saturated after heavy rainfall, causing a distinct block of rock and soil to move downslope along a curved concave surface with a backward rotational movement. Which type of mass wasting process does this scenario describe?

  1. SlumpingCevap
  2. B
    Exfoliation
  3. C
    Carbonation
  4. D
    Metamorphism

Cevap

Slumping is the correct answer because it refers to the rotational downslope movement of saturated rock and soil along a concave fracture plane.
Slumping occurs when a permeable layer overlies an impermeable layer, allowing water saturation to reduce friction and create a curved slip surface. Gravity causes the entire mass of earth to slide downward while rotating backward.

Adım Adım Çözüm

1
Analyze the process mechanism and structural indicators described in the scenario.
The movement involves downslope displacement of saturated material along a curved failure plane with backward rotation.
Identifying the specific movement geometry helps distinguish slumping from other mass wasting types like soil creep or rockfall.
2
Distinguish mass movement from in-situ weathering or rock formation processes.
Process involves gravitational downslope transport rather than chemical dissolution or thermal breakdown in place.
Mass wasting requires bodily displacement under gravity, confirming slumping as the correct process.

Anahtar Kavram

Mass wasting processes (slumping/rotational slide vs. in-situ chemical/physical weathering)
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Konular

Weathering and Mass Wasting Processes

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