Petrogenesis of Adakitic Intrusive Rocksin Xu-Huai Area, Eastern China  

作　　者：Qinghai Wang, Wenliang Xu, Dongyan Wang, Jingqian LinCollege of Earth Sciences, Jilin University, Changchun, 130061 China 

出　　处：《Global Geology》2003年第2期141-148,共8页世界地质（英文版）

基　　金：Supported by the research grants No. TG1999075502 from MST; Nos. 40172030 and 40133020 from the NSFC in China

摘　　要：The research of the petrology and the geochemistry of the Mosozoic intrusive rocks in Xu-Huai area indicated that they are mainly composition of dioritic porphyry and monzodioritic porphyry, and the features of the petrology and geochemistry of the Mosozoic intrusive rocks are extremely similar to those with the typical adakites. Combined with the petrography and the testimated results of the deep-seated xenoliths in the intrusive rocks, it indicates that the petrogenesis of the Mosozoic intrusive rocks could be resulted from the partial melting of amphibole-bearing garnet pyroxenite and garnet amphibolite in lower continental crust in this area.The research of the petrology and the geochemistry of the Mosozoic intrusive rocks in Xu-Huai area indicated that they are mainly composition of dioritic porphyry and monzodioritic porphyry, and the features of the petrology and geochemistry of the Mosozoic intrusive rocks are extremely similar to those with the typical adakites. Combined with the petrography and the testimated results of the deep-seated xenoliths in the intrusive rocks, it indicates that the petrogenesis of the Mosozoic intrusive rocks could be resulted from the partial melting of amphibole-bearing garnet pyroxenite and garnet amphibolite in lower continental crust in this area.

关 键 词：adakite  petrogenesis  INTRUSIVE rocks  partial melting  Xu-Huai area 

分 类 号：P581[天文地球—岩石学]