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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Rahul kumar Best Answer
Answer: Plunge of fold axis = 90° Intersection of Vertical limbs will be the orientation of fold axis. The intersection of two vertical limbs will give a vertical line. It means that the fold axis will be vertical. The plunge amount of any Vertical line is 90°.
Sir, please also help me solve the other question I asked that day about asymmetry and vergence of minor parasitic folds in the doubt section .. the question is about an overturned anticlinorium !