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Raunak Mitra posted an Question
November 22, 2020 • 06:56 am 30 points
  • IIT JAM
  • Geology (GG)

224. in the given geologic map, the horizontal lines are stratum contours. the throw on the fault (f-f) is.. . .. meters. shale sandstone siltstone f shale eae

224. In the given geologic map, the horizontal lines are stratum contours. The throw on the fault (F-F) is.. . .. meters. Shale Sandstone Siltstone F Shale eae caneenvaseoe 400m 2001 Sandstone A. 400 C. 123 B. 120 D. 140 (IIT JAM-2016) . I cannot understand the description given in Solved study material. please elaborate it.

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    Asif ali best-answer

    tan(dip) = contour interval / contour spacing = 100/100 = 1,. so tan(Dip) = 1 or Dip = 45°. Now solve for throw Tan(Dip or slip of bed) = Throw/ (separation)contour spacing after displaced bed or after faulting which is total Horizontal Equivalent of faulting. Tan( Dip or slip) = Throw / H.E. of 4 strike lines (400) or,. 1= throw / 400 so throw = 400 m

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    Sajan sarthak best-answer

    800 -400= 400 continuously follow the strike lines of lower bed from 200 to 800 and it's exactly coinciding with 400 stike line of lower outcrop of same bed contact so it's having throw 400 m

    eduncle-logo-app

    Sir I cannot understand it.

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    Mohd Imran Best Answer

    The answer will be A i.e., 400. As we can see in the fig that strike line are plotted. if we see the upper boundary of black bed, we can count the strike line from 200, 300 and so on. As we reach the same bed in the lower block we can see the strike line of 400 for upper boundary of that black bed. But if we count from the upper part that strike should be of 800, but it is of 400. So the throw will be 400.

    eduncle-logo-app

    Sir I can't understand it properly. Can you please draw and show the answer

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