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研究区位于冈底斯—念青唐古拉板片的中部偏南,夹持于北部受班公错—怒江缝合带和南部雅鲁藏布江缝合带之间(陈旭,2005)。区内构造线以北西西向和近东西向为主,南北向为辅,岩石地层区划属隆格尔—南木林地层分区,主要出露石炭系、二叠系碎屑岩,呈北西向带状延展,少数呈剥蚀窗形式出露。本文结合研究区地质背景,以研究区2020个水系沉积物样品为研究对象,着重对Ag、As、Au、Bi、Cu、Fe、Hg、Mn、Mo、Pb、Sb、Se、Sn、W、Zn、Cd、Cr、Co、Ni等19种元素进行成矿性分析。
The study area is located in the south central part of the Gangdese-Nyainqentanglha Plate, clamped between the northern part of the Bangong-Kunjiang Null and the Brahmaputra in the south (Chen Xu, 2005). The main tectonic line in the area is mainly in the NW and NW direction and near EW direction, supplemented by north and south directions. The lithostratigraphic division belongs to the Longger-Namu Lam stratigraphic division, which is mainly derived from Carboniferous and Permian clastic rocks, Extend, a few were exposed form of erosion window. Based on the geological background of the study area, taking the 2020 sediments of the study area as the research objects, this paper focuses on the study of the sediments of Ag, As, Au, Bi, Cu, Fe, Hg, Mn, Mo, Pb, Sb, Se, Sn, Zn, Cd, Cr, Co, Ni and other 19 elements for metallogenic analysis.