ASYMMETRIC PULL-APARTS,
HANMER
Bottom left is type 1 asymmetrical pull apart of Hanmer from Untala
granite cover in Rajasthan. The boudinage appears to be along a
complementary shear fracture and ductile shear is foliation parallel. Top
left shows type 2A pull aparts, top right is type 1 and bottom right is
also type 1. Dextral rotation of shear fracture boudins can be seen. All
examples are from the cover rocks of Archaean age of Untala granite east
of Udaipur in Rajasthan, India. The pull-apart structures afford evidence
to the effect that foliation parallel shear operated during the pluton
emplacement and the pre-Aravalli orogenic movement. This also shaped the
pluton tips, changed it orientation orientation and the finite strain
patterns. The trems used are after S Hanmer.
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