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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Rahul kumar
As you know that block towards the dip direction of fault plane is known as hanging wall and block opposite to the dip direction of fault plane is known as footwall. In case of vertical fault, the dip of fault plane is 90 degrees, which means that you can't define the dip direction of fault plane and hence you can't say which one is foot wall and which one is hanging wall.