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The Nyainqentanglha granite, a batholith with an area of 1500 km2 in the central Lhasa block, comprises mainly medium-fine-grained biotite monzonitic granite and medium-coarse-grained biotite monzonitic granite. Their contact relationship suggests that the medium-nne-grained biotite monzonitic granite was crystallized earlier than the
The Nyainqentanglha granite, a batholith with an area of 1500 km2 in the central Lhasa block, contains mainly medium-fine-grained biotite monzonitic granite and medium-coarse-grained biotite monzonitic granite. Their contact relationship suggests that the medium-nne-grained biotite monzonitic granite was crystallized earlier than the