By study dabaoshan deposit on minerogenetic and geological background , mineral constituent , rare - earth element , isotope and typomorphic feature of sulpurization mineral , finally , we made a conclusion that dabaoshan deposit resulted from the volcanic deposition which type is laterebuilt and magma hydrothermal superimposed . we found the upside of dabaoshan deposit have been denuded or oxidized , bassically , it have reached the lowest part of the deposit 通过对大宝山矿床的成矿地质背景、矿物成分、稀土元素组成、同位素以及黄铁矿、闪锌矿、方铅矿的标型特征进行研究，确定了大宝山矿床的成因为火山沉积，经后期岩浆热液叠加型矿床，对矿床的远景进行了预测，提出大宝山矿床的上部矿体已被剥蚀或被氧化，基本上已经到矿体的深部的观点。
The gangue minerals are mostly carbonating minerals , fluorite , barite , celestite and so on ; the rock alteration is slightly silicified , carbonated , baritizated , celestited , which is low - temperature alteration . because of continual downgoing extrusion from india plate to euro - asian plate , there are some thrusting nappe structures in lanping basin related to the orogens on the two sides 矿床中矿石矿物发育典型的中低温热液成因的矿物组合，如黝铜矿系列、方铅矿、黄铜矿等，脉石矿物主要为碳酸盐类矿物、萤石、重晶石、天青石等；围岩蚀变主要发育弱硅化、碳酸盐化、重晶石化、天青石化等低温蚀变组合。
By analyzing and generalizing minerogenetic and geological background , mineral constituent , rare - earth element , isotope and typomorphic feature of sulpurization mineral , finally , we made a conclusion that fankou desposit resulted from the hot spring eruption at the bottom of sea , it has a character of syngenetic sedimentary deposit , which was affected by the late hydrothermal superimposed and light rebuilding after it came into being , which is typical sedex bedded - controlled deposit 通过对凡口矿床的成矿地质背景、矿物成分、稀土元素、同位素以及的黄铁矿、闪锌矿、方铅矿标型特征进行了分析总结，确定了凡口矿床是海底热泉喷溢形成的，同时又受到后期热液轻微叠加改造，属于典型的sedex型层控矿床。
