摘要
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
