Some characters of the petrology and petrochemistry of the volcanic rocks of the Gangdise-Nyainquentanglha magmatic arc were involved in some of our discussions. In this paper we discuss mainly the geochemistry of REE...Some characters of the petrology and petrochemistry of the volcanic rocks of the Gangdise-Nyainquentanglha magmatic arc were involved in some of our discussions. In this paper we discuss mainly the geochemistry of REE and trace elements. The samples are representatives of the Jurassic-Cretaceous andesite (N-3) and basalt (N-1) belonging to ealc-alkali series in Nyainqentanglha area, Cretaceous andesite (5-92),展开更多
In Jinghong district of Yunnan Province, China, along the east of the south end of Lincang granite batholith, there is a belt of felsic-ultramafic complexes, in which the granite and diorite are dominant and large in ...In Jinghong district of Yunnan Province, China, along the east of the south end of Lincang granite batholith, there is a belt of felsic-ultramafic complexes, in which the granite and diorite are dominant and large in scale; the gabbro, pyroxenite and peridotite occupy a small part. (Some of them occur alone, and others are within diorite.)展开更多
The Dengqen ophiolite within the Bangong Co-Dongqiao-Nujiang ophiolite belt is composed of both the east and west complexes. The east one, from bottom to top, is made up of harzburgite, cumulate orthopyroxenite, cumul...The Dengqen ophiolite within the Bangong Co-Dongqiao-Nujiang ophiolite belt is composed of both the east and west complexes. The east one, from bottom to top, is made up of harzburgite, cumulate orthopyroxenite, cumulate gabbro, gabbro and dike complexes including dianase, gabbro and plagiogranite. Petrographically, gabbro展开更多
文摘Some characters of the petrology and petrochemistry of the volcanic rocks of the Gangdise-Nyainquentanglha magmatic arc were involved in some of our discussions. In this paper we discuss mainly the geochemistry of REE and trace elements. The samples are representatives of the Jurassic-Cretaceous andesite (N-3) and basalt (N-1) belonging to ealc-alkali series in Nyainqentanglha area, Cretaceous andesite (5-92),
文摘In Jinghong district of Yunnan Province, China, along the east of the south end of Lincang granite batholith, there is a belt of felsic-ultramafic complexes, in which the granite and diorite are dominant and large in scale; the gabbro, pyroxenite and peridotite occupy a small part. (Some of them occur alone, and others are within diorite.)
文摘The Dengqen ophiolite within the Bangong Co-Dongqiao-Nujiang ophiolite belt is composed of both the east and west complexes. The east one, from bottom to top, is made up of harzburgite, cumulate orthopyroxenite, cumulate gabbro, gabbro and dike complexes including dianase, gabbro and plagiogranite. Petrographically, gabbro
