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Which kind of mass wasting processes are commonly associated with creep?
Explanation
Creep is defined as an extremely slow, almost imperceptible downslope movement of soil and rock debris [2]. It is a persistent mass movement process that occurs on moderately steep, soil-covered slopes [1]. The movement is driven by gravity and often results from constant minor rearrangements of constituent particles [2]. Key mechanisms facilitating this slow movement include expansion-contraction cycles such as freeze-thaw and wetting-drying, which lift soil particles perpendicular to the slope before gravity pulls them slightly downhill [2]. While various forms like rock creep or talus creep exist, the process is most commonly associated with the gradual movement of surface soil and regolith [4]. Evidence of this slow soil movement includes tilted fence posts, leaning telephone poles, and curved tree trunks [1].
Sources
- [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 6: Geomorphic Movements > Slow Movements > p. 86
- [2] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 8: Natural Hazards and Disaster Management > 8.36 Environment and Ecology > p. 43
- [3] Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 4: Weathering, Mass Movement and Groundwater > SOIL CREEP > p. 39
- [4] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 6: Geomorphic Movements > Mass Wasting (Slope Failure) or Mass Movements > p. 85