论文部分内容阅读
热水活动在岩石圈中是一种非常重要的地质和成矿作用，热水作用的动力学类型主要有深部岩浆作用、碰撞挤压作用和沉积物自生高压脱水作用。根据热水成矿的特点，在传统的三种成矿作用分类范围之外列出热水成矿作用，并进行了次级分类。我国南方主要发育有四期热水沉积作用．其特征是：在演化方式上从震旦纪到二叠纪有从沉积作用向交代和充填作用演化的趋势，在元素组成上有从稳定元素向活泼元素演化的趋势。在时空分有模式上，热水沉积矿床主要发育于张性构造背景中裂陷盆地充填层序碳酸盐岩向细碎屑岩的过渡部位．这个过渡时期正是盆地演化到深部与表层物质和能量强烈交换的时期，也是盆地海平面最高、陆源物最少的时期，同时由于盆地沉积基底碳酸盐岩的较早因此共产生裂隙和层间空隙，有利于形成热水集中供给的通道。
Hot water activity is a very important geology and mineralization in the lithosphere. The kinetic types of hot water mainly include deep magma, collision and extrusion and autoclaved autoclave dehydration. According to the characteristics of hydrothermal mineralization, the hydrothermal mineralization is listed outside the traditional classification of the three metallogenic functions and the secondary classification is carried out. There are four major hydrothermal sediments in southern China. It is characterized by the evolution trend from Sinian to Permian, from sedimentation to metasomatism and filling, which evolves from stable element to active element in elemental composition. In the mode of space-time division, the hydrothermal sedimentary deposit mainly develops in the transitional part of filling sequence carbonate rocks to fine clastic rocks in the rifted structural background. This transitional period is the period from the evolution of the basin to the exchange of deep material and energy with the surface and the highest sea level of the basin with the least amount of terrigenous. At the same time, due to the earlier deposition of basement carbonate in the basin, fissures and interlayer Void, is conducive to the formation of hot water supply channels.