Fig. 12

Schematic maps showing the reconstruction of lithologic distributions in the source areas in the Eastern North Tianshan Suture during late Permian-earliest Triassic. a During Wuchiapingian, most parts of the Eastern North Tianshan Suture were covered by undissected arc volcanic rocks and sedimentary and metamorphic rocks were exposed in the eastern parts of the Eastern North Tianshan Suture; b During Changhsingian to early Induan, the exposure of sedimentary and metamorphic rocks expanded to the western part of the Eastern North Tianshan Suture and the deep-seated granites were initially exposed. See text for details