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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Gurmeet Singh posted an Question
September 11, 2020 • 04:31 am
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30 points
30 points
- IIT JAM
- Geology (GG)
Sir also tell me about - stretching lineation and intersecting lineation.
sir also tell me about - stretching lineation and intersecting lineation.
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Rahul kumar Best Answer
Stretching lineations are defined by the shape of deformed objects within the rock. Stretching lineations occur due to plastic deformation in rocks. Intersecting lineation is the line of intersection between two planar fabrics. Intersecting planar fabrics could be cleavage intersecting with bedding or two sets of cleavage intersecting.
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Sajan sarthak![best-answer]()
1.Intersection lineations are linear structures formed by the intersection of any two surfaces in a three-dimensional space. The trace of bedding on an intersecting foliation plane commonly appears as colour stripes generally parallel to local fold's hinges. Intersection lineations can also be due to the intersection of two foliations. 2. Stretching lineations are formed by shearing of rocks during asymmetric deformation of a rock mass. Stretching lineations record primarily the vector of greatest stretch, which is perpendicular to the principle plane of shortening.