一、岩石学及岩石化学文内所指念青唐古拉地区为北起班公湖—怒江断裂,南至念青唐古拉山。晚中生代火山岩主要分布于班戈县的新吉—总庆一线;那曲地区的蓬错—那曲一线以及安多地区的东巧—安多一线。除新吉—德庆火山岩稍具规模外,其它的均呈零星孤立出露,文中所述德庆、那 I. Petrology and petrochemistry The concept of the Qingtanggula region refers to the northern part of the Gonggong Lake-Nujiang fault and the south to the Nyainqentanglha Mountain. Late Mesozoic volcanic rocks are mainly distributed in Bangor County, the new Kyrgyzstan - General Qing first line; Naqu area Peng fault - Nagqu line and Ando area Dongqiao - Amdo line. In addition to the Xinji - Deqing volcanic rock slightly larger scale, the other were isolated sporadic isolated, the text described Deqing, that