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扎格拉金矿位于班公湖一怒江结合带东段及冈底斯一念青唐古拉板片北缘的腾冲一班戈岩浆弧带上,受被动陆缘深海复理石建造、脆一韧性剪切带和深成岩浆活动控制。流体包裹体类型以单相和A型两相盐水溶液包裹体为主,次为B型两相盐水溶液包裹体、富CO_2两相包裹体和含CO_2三相包裹体,成矿流体属中低温和中低盐度H_2O-NaCl-CO_2体系。氢、氧同位素和相对富含K~+、Na~+、Ca~(2+)、Mg~(2+)、Cl~-、SO_4~(2-)的包裹体液相成分,显示成矿流体主要来自长期封存于沉积岩的深循环热(卤)水中,矿床成因类型为浅成中低温地下热(卤)水溶滤型金矿床。其成矿特征和流体性质与穆龙套型金矿床具有诸多相似性,研究该区域对西藏“沙丁板岩系”分布区金铜多金属找矿具有重要意义。
The Zhalala gold mine is located on the Bangonghu-Nujiang junction with the eastern section of the Tengchong-Bangor magma arc belt on the northern margin of the Gangdese-Nyainqentanglha plate and is constructed of passive-margin deep-sea flysch, brittle-ductile shear Zone and deep magma activity control. The main types of fluid inclusions are single-phase and A-type two-phase brine inclusions, secondary B-phase two-phase brine inclusions, CO 2 rich two-phase inclusions and CO 2 -containing three-phase inclusions. And medium-low salinity H_2O-NaCl-CO_2 system. Hydrogen and oxygen isotopes and relatively rich liquid inclusions in K ~ +, Na ~ +, Ca ~ (2 +), Mg ~ (2 +), Cl ~ - and SO_4 ~ (2-) The fluid mainly comes from the deep-cycle hot (brine) water, which is sequestered in the sedimentary rocks for a long time. The genetic type of the deposits is the epithermal (halogen) water-soluble filter type gold deposit with moderate to low temperature. The metallogenic characteristics and fluid properties have many similarities with the Murongtao type gold deposit. It is of great significance to study the gold-copper-polymetallic ore prospecting in the Tibetan Sardinian Slate.