ORIGIN AND PETROLOGY OF YINYAN TIN-BEARING GRANITE PORPHYRY
(Institute of Geology; Central South University of Technology; Changsha 410083)
Abstract: The characteristics of Yinyan tin bearing granite porphyry in view of geology, petrochemistry and mineralogy have been presented. Furthermore, the origin of the granite porphyry from REE distribution patterns, trace elments, Rb Sr istopes etc, are also discussed. It could be concluded that the Yinyan tin bearing granite porphyry belongs to remelting regenerated granitoids of the continental crust reworking type.
Key words: granite porphyry petrography geochemistry petrogenesis