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礼岷金矿带控矿规律涉及地层中的矿源物质、岩体的热动力条件和多期次的构造变形活动等多种因素,其中构造变形作用因素占据主导地位。该区早期以纵向构造置换为特征的挤压变形促使成矿元素活化,后期脆性变形产生的张性构造破碎带,有利于矿液萃取和循环,并且提供了矿液沉淀的空间。构造控制的岩浆活动形成巨大的热源,促进建造水、大气降水形成不断的热液环流,沿变形岩石裂隙发生热液对流,并从矿源层中不断萃取金元素成为成矿溶液,最后在低压区沉淀,富集成矿。可以说,构造活动是控制该区金矿形成的关键因素之一。因此,研究该区的控矿规律,其主要内容就是研究构造控矿规律。
The ore-controlling regulation of the Li-Ming gold deposit involves many factors, such as the source materials in the stratum, the thermodynamic conditions of the rock mass and the tectonic deformation activities of multiple phases. The structural deformation factors dominate. In the early stage, the extrusion deformation characterized by vertical tectonic substitution promoted the activation of ore-forming elements and the tension zone formed by the brittle deformation in the later period, which is favorable for the extraction and circulation of ore fluids and provided the space for mineral liquid to deposit. The tectonically controlled magmatic activity formed a huge heat source to promote the construction of water and the precipitation of the atmosphere formed a continuous hydrothermal circulation. The hydrothermal convection along the deformed rock fissures and the continuous extraction of gold elements from the source rock into the ore-forming solution and finally in the low pressure zone Precipitation, enrichment of mineralization. It can be said that tectonic activity is one of the key factors controlling the formation of gold deposits in this area. Therefore, the study of the area of ore-control law, the main content is to study the structure of ore-control laws.