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笔者选择锡矿和金矿演化趋势进行对比,其目的是要说明金属矿床形成时时空关系的差异.在地壳演化过程中,锡和金常常显示相反的特征.金是前寒武纪成矿作用的典型代表,而锡主要作为显生宙成矿的元素.周期性的造山作用和花岗岩化,使原生锡和金的沉淀富集具有一定的时空型式.造山运动前或造山运动后的沉积作用期控制了锡和金的沉积再富集作用.本文试图对依据地质环境和必要的再活比条件锡和金的沉淀富集作用展开讨论,而对于每种元素来说其环境和条件都是不同的.
The author chooses to compare the evolution of tin and gold deposits with the aim of illustrating the difference in the spatial and temporal relationships during the formation of the metal deposit and tin and gold often show the opposite characteristics during crustal evolution.The gold is typical of the Precambrian mineralization , While tin mainly acts as an element of the Phanerozoic mineralization.The periodic orogeny and granitization make the precipitation of primary tin and gold have a certain temporal and spatial pattern.The sedimentary period control before orogeny or orogeny The deposition and re-enrichment of tin and gold.This paper attempts to discuss the precipitation enrichment of tin and gold according to the geological environment and the necessary reactivation conditions, but the environment and conditions are different for each element .