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云南大红山基底地层中的层状铜矿的硫同位素、微量元素表明其成因与基性岩有关，包裹体测试显示其沉积成矿时海水的温度和盐度相当高．与此对应，层状铜矿的主要含矿地层的化学成分、微量元素和稀土元素特征也都介于正常沉积变质岩和本区的喷流热水沉积变质岩之间．而本区的变质基性熔岩及次火山岩也有被循环海底热液交代过的证据．因此认为层状铜矿及其含矿地层主要是海底循环热液从下部地层交代带出的物质（其中Ｃｕ，Ｆｅ和部分Ｎａ，Ｓｉ，Ｃａ可能来自基性熔岩及次火山岩）和陆源物质在适当的物理化学条件下一同沉积形成的．
The sulfur isotopes of stratiform copper deposits in the basement strata of Dahongshan in Yunnan Province indicate that trace elements are related to basic rocks. Inclusion tests show that the temperature and salinity of seawater during deposition and mineralization are quite high. Correspondingly, the chemical composition, trace elements and rare earth elements of the main ore-bearing strata of layered copper mine are also between the normal sedimentary metamorphic rocks and the hydro-thermal sedimentary rocks in this area. Metamorphic basaltic lavas and sub-volcanic rocks in this area are also evidenced by cyclic hydrothermal fluids. Therefore, it is considered that the stratiform copper ore and its ore-bearing strata are mainly those derived from the submarine circulating hydrothermal fluids from the lower strata (in which Cu, Fe and some Na, Si and Ca may be derived from basic lavas and subvolcanic rocks) and terrestrial materials Formed under the appropriate physicochemical conditions.