Gurmeet Singh posted an Question
January 08, 2021 • 17:43 pm 30 points
  • IIT JAM
  • Geology (GG)

0. the mass movement process in which cohesive blocks of earth move on a failure plane with concave-up geometry, is known as a. debris flow 47 he e ls p pared o

0. The mass movement process in which cohesive blocks of earth move on a failure plane with concave-up geometry, is known as A. Debris flow 47 he e LS P pared on ogo0 1S 1:P 1: D 1US B. Creep e Rotational slide D. Translational slide (BHU-2013) 48. Which geo-material has higher porosity? (IT-JAM 2012) A. Gravel C. Silt B. Sandstone 41 rp of the ollowinnel align D. Clay n O13 t 49 p if can ho e UTP all ane an fou ae

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    Rahul kumar Best Answer

    Answer: Rotational slide Concave up geometry mass movement process results from rotational slide. Creep is a slow mass movement process. Translational slide involves mass movement along a planar surface. Debris flow. Debris flow is a moving mass of loose mud, sand, soil, rock, water and air that travels down a slope under the influence of gravity. Answer: Gravel The answer may differ depending on the state of material i.e. whether it's consolidated or not. An Unconsolidated clay will have maximum porosity whereas consolidated clay will have minimum porosity. Considering the consolidated case, the porosity of materials increases will roundness and size. Here, in all options gravel is biggest in size that's why it should have highest Porosity.

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    but porosity depends on surface area as clays have.

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    Dear Gurmeet, Kindly mark the comment as answered :)

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    sir but it is actually permeability that you are talking about....i m asking if we take 1 kg clay & 1kg gravel which have more porosity.

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    If you are taking the Unconsolidated condition; Clay will have higher porosity than gravel. If you take the consolidated condition, gravel will have higher porosity than clay.

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    then clay is unconsolidated & claystone is consolidated rock.

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