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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Ishita Das posted an Question
November 27, 2020 • 16:24 pm
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30 points
30 points
- IIT JAM
- Geology (GG)
The stereographic projection of the fold axis (f) and the axial planes (ap) in two regions, i and il ap ap i the folds in l and il are then:
The stereographic projection of the fold axis (F) and the axial planes (AP) in two regions, I and Il AP AP I The Folds in l and Il are then? How to understand these type of questions?
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Sajan sarthak Best Answer
1.upright plunging fold. in fold case below figure ( 2) no. 2.reclined fold.
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Rahul kumar![best-answer]()
Answer: I is upright fold and II is inclined fold As it is shown that the axial plane in Diagram-I is vertical and any fold with vertical axial plane is called as upright fold. Similarly, axial Plane in Diagram-II is inclined and folds with inclined axial planes are known as inclined fold. For solving such questions, you should have the idea about basic stereographic projection and fold classification. Perimeter of stereographic projection indicates horizontal plane; great circle of stereographic projection indicates inclined plane; diameter of stereographic projection indicates vertical plane.