High‐pressure granulites in the Sanggan area, North China craton: metamorphic evolution, P–T paths and geotectonic significance
Tóm tắt
High‐pressure basic granulites are widely distributed as enclaves and sheet‐like blocks in the Huaian TTG gneiss terrane in the Sanggan area of the Central Zone of the North China craton. Four stages of the metamorphic history have been recognised in mineral assemblages based on inclusion, exsolution and reaction textures integrated with garnet zonation patterns as revealed by compositional maps and compositional profiles. The
The clockwise hybrid ITD and IBC
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