金属硫化(类)矿床氧化带地球化学演化模式

原生硫化物矿体的表生演化在时间上表现为由硫化物经过硫酸盐阶段，铁的氢氧化物阶段和次生还原富集阶段、铁的氧化物阶段及蒸发成因的碳酸盐阶段等过程；同时在空间上相应地形成明显的垂直分带规律．在时间上从早至晚的地球化学产物并非完全与在空间上从下至上的分带完全对应；不同时间阶段的地球化学反应及其产物在空间上的分布分配受到地球重力场及太阳泵作用力的控制．原生硫化物表生地球化学演化在时空中的有机组合构成了该类矿床氧化带统一的地球化学演化模式．

Geochemical Evolution Model for Oxidation Zones of Metallic Sulphide Deposits

In time, the supergene geochemical evolution of sulphide ore body goes through the sulphate stage, iron hydroxide stage and secondary sulphide stage,iron oxide stage and carbonate stage,and forms obvious vertical zones in space. The geochemical products from the early to the late stage are not completely correspondant to the vertical sone from the lower to the upper part of the oxidation zone. The geochemical evolutions at different stages and the spacial distribution of their products are controlled by the gravity of the earth and the pumping of the sun. The supergene geochemical evolution model of sulphide ore is composed of the assemblage of the changing regularities in time and space.