Live Game Live. Terraces are basically stairs built into a slope with various materials, such as stone, concrete, or wood. It commonly involves a shear plane on which a back-tilting of the top of the slumped mass occurs. If possible, situations like that at Porteau Cove (Figure 15.10) should be avoided — by building somewhere else — rather than trying to stitch the slope back together with … A little bit of water helps to hold grains of sand or soil together. Geology. This landslide prevention method works best on slopes that are not too steep or if the movement hasn't already begun. [3] Rotational movement causes the original surface of the block to become less steep, and the top of the slump is rotated backward. Understanding the geology is critical to understanding mass wasting. Un slump est une formation géologique consécutive à l'affaissement latéral en masse de sédiments non consolidés (du verbe anglais to slump, affaisser, écrouler).. Addition of water and loss of sediment cohesion at the toe may transform slumping material into an earthflow. A slump is a form of mass wasting that occurs when a coherent mass of loosely consolidated materials or a rock layer moves a short distance down a slope. These salt can come from the manufacturing process of Portland cement Slumps frequently form due to removal of a slope base, either from natural or manmade processes. Understanding the geology is critical to understanding mass wasting. 4 years ago. And it saps my energy and motivation. Slump (geology) For other uses, see Slump (disambiguation). Thorough wetting is a common cause, which explains why slumping is often associated with heavy rainfall, storm events and earthflows. The curved sliding surface results in rotation of overlying slump blocks. Addition of water and loss of sediment cohesion at the toe may transform slumping material into an earthflow. Slope stability is ultimately determined by two principal factors: the slope angle and the strength of the underlying material. Think of this a spoon shaped fault, where in this case, the fault angle is steep in the distance, and shallows in the forground. The surface of the detached mass often remains relatively undisturbed, especially at the top. I’m trying to do too much. We will cover the different types of landslides, what triggers them, and mitigation techniques for reducing the likelihood that what you build will be destroyed by one. Homework. Other Sciences. [5], Short distance movement of coherent earth down a slope, "Sedimentary deposits on the southern South African continental margin: Slumping versus non-deposition or erosion by oceanic currents? Transverse ridges, transverse cracks and radial cracks form in displaced material on the foot of the slump. To play this quiz, please finish editing it. This particular slump was initiated by a magnitude 8.4 earthquake that resulted in liquefaction of the soil. This results in internal deformation of the moving mass consisting chiefly of overturned folds called sheath folds. How to Prevent Efflorescence - Protecting your structures . A slump is a form of mass wasting that occurs when a coherent mass of loosely consolidated materials or rock layers moves a short distance down a slope. It's almost like when you stand up straight and tall, and then slump your shoulders forward as if you're too tired to hold up your shoulders. However, hummocky ridges may form near the toe of the slump. H‰tT¹’›@ÍõθŠûÈm•#+sm€`$¨E Qú{÷1°ëÀCßÇ{}~?EÄa5œž¢0Šâέ¼*8o§?ª}µ£Y`3:ˆÓ°R.ÃD}êTí’Iga­à:ȃÄa©‚›mvIvÖ¹jQ“„;/!ü2m¯Š&1ÅxØ­D8êóûéüãpQñ^^Ky‹³fº9öÉT¯É [1] Movement is characterized by sliding along a concave-upward or planar surface. Slump folds or slump related structures are believed to be produced as a result of weak/local tectonic disturbance. ¼ 7|°0Ù@“Ñ"ÔÀéÆwt“ñc»Ìç½WH¯œÀƯ§ù§®'PøÏK[ž;îÚ³~ù'À Lr¦È endstream endobj 66 0 obj 803 endobj 67 0 obj << /Filter /FlateDecode /Length 66 0 R >> stream ", https://en.wikipedia.org/w/index.php?title=Slump_(geology)&oldid=988052664, Creative Commons Attribution-ShareAlike License, This page was last edited on 10 November 2020, at 19:33. c@úët‘°í©²åwM¶œˆ26#\fÔaª&o¼@c Ü,ZäØKãÅëQù#þÆèõ‚Ñû/î Öi¯fÐ:på1ßTp½ÎÑÖÀ²^TjµWj½T­ÌP…¹’ÿ—±€cÄÿ«¸Ïn`A§(œ8ŽãޗžPsìê $67¶‡ÝDb¶ŸÐˆºƒöß¼ÿ4P ìÀa$œWvV+L;šIæõà(M©€“Ò(•Èž6ÚX®h…2“|žØðààbZtíÍÅUÐïáåÓОbåVÛ8Dݦik4_ eøÖLtÀ)©¥™­Ñ„g,âS”nF÷kôh¹›ÉŽ3Ž89MÜëÁh¢€±A/Xöç¼í͋ͤ‰=T! Generally, three cases must be occurred for forming efflorescence. Delete Quiz. In a slump, a portion of the mountain moves down a short distance. It is the removal of the slope's physical support which provokes this mass wasting event. 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