Anukruti posted an Question
December 26, 2020 • 02:51 am 30 points
  • IIT JAM
  • Geology (GG)

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    Rahul kumar Best Answer

    Answer: 20 degrees Given that the orientation of limb is 070, 40S. Also, the limb is getting rotated by 30° clockwise (looking towards ENE) about the fold axis (horizontal axis). After rotation of 30° clockwise the attitude of limb will change to 070, 70S. [NOTE: Any rotation about horizontal axis will change the dip amount only and strike direction will be same as before rotation.] Final attitude of the limb is 070, 70S. The plunge of amount of the pole to this limb will be (90 - dip amount of bed); because pole is always perpendicular to the bed/limb. i.e. Plunge amount = 90 - 70 = 20 degrees

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