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Yogi Raj Singh posted an Question
September 19, 2022 • 02:25 am 30 points
  • IIT JAM
  • Geology (GG)

15. match the folds listed in group i with corres ponding geometric characteristics in group ii. group i i. parallel group ii p. angular hinge 11. chevron q. mi

15. Match the folds listed in Group I with corres ponding geometric characteristics in Group II. Group I i. Parallel Group II P. Angular hinge 11. Chevron Q. Minimum thickness parallel to the axial surface is at the hinge R. Negative inter-limb angle i. Similar Mushroom S. Constant thickness parallel to the axial surtace (A)i-Q; ii - R; ii-S; iv-P (B) i-S; ii - P; ii -Q; iv - R (C)i-Q: ii - P; ii - S; iv - R 0)i-S; ii - R; ii -Q; iv-P

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  • Raghubeer rai best-answer

    option C would be the correct ans here chevron fold is basically straight limb and sharp hinge features and mushroom fold have a characteristic features that is shows negative interlimb angle ,the big confusion arises between parallel and similar fold so just remember in case of parallel fold the orthogonal thickness remains constant and in case of similar fold orthogonal thickness higher at hinge but focus that if we are talking about thickness parallel to axial surface so in case of similar fold thickness parallel to axial surface remain constant and for parallel fold it would be low means thickness minimum at hinge .here below I am attaching a photograph (screenshot) for your better understanding, have a look it.

    cropped2020996272766649105.jpg
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