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Harshvardhan Sharma posted an Question
January 29, 2021 • 20:42 pm 30 points
  • IIT JAM
  • Geology (GG)

199. if the pitch of a linear structure on a bed of attitude n 30° e/50° se is 90°, then the plunge of the linear structure will be: a. 30 c. 50 b. 45 d. 90°

199. If the pitch of a linear structure on a bed of attitude N 30° E/50° SE is 90°, then the plunge of the linear structure will be: A. 30 C. 50 B. 45 D. 90° (PU-2011)

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  • comment-profile-img>
    Asif ali

    Pitch is the angle from from horizontal to any line on the bedding plane so it varies from 0°-180° on stereonet diagram so if you have some idea to draw a pitch/ Rake on stereonet, you can measure easily the plunge amount. As Rake is 90° Which is in the True Dip Direction of the bedding . So plunge of this rake = True dip Amount the bed. As I attached in the image.

    cropped7295245931881700787.jpg
  • comment-profile-img>
    Dinesh kumar best-answer

    C.50°, As given lineation is perpendicular to strike it's plunge will remain same as true dip.

  • comment-profile-img>
    Sajan sarthak best-answer

    AS THE PITCH IS THE ANGLE BETWEEN THE STRIKE OF BED AND THE GIVEN LINEATION AND ITS PERPENDICULAR THAT MEANS IT'S ALONG THE TRUE DIP DIRECTION AND In QUESTION IT'S GIVEN THAT THE TRUE DIP IS 50 DEGREE SO THE AMOUNT OF PLUNGE IS ALSO 50 DEGREE.

  • comment-profile-img>
    Saurabh 1 Best Answer

    Please find solution below.. Correct answer is (C)..

    cropped694782300924931188.jpg
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