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通过对胶东区域断裂构造时空演化的分析,提出郯庐大断裂的次级断裂为胶东金矿的控矿构造,并为导矿构造。晚燕山期区域右行走滑断裂活动产生的浅部张剪裂隙为容矿构造,其张裂变形产生的扩容作用是“泵吸”深部矿液上侵充填的驱动力。张剪断裂以脉动方式释放构造应力,实测差应力值为120~40MPa;从早到晚有衰减趋势。容矿断裂脉动活动可划分为脆性破裂和脆韧性扩张两种动力学状态或阶段,并制约着热液反应体系中成矿和控制反应进行的方向和强度,从而控制成矿元素的富集和分散。热液成矿反应体系的热力学演化与构造动力学条件的耦合是金富矿石形成的机制。
Based on the analysis of the spatial and temporal evolution of the fault structure in the Jiaodong area, it is proposed that the secondary fault of the Tanlu large fault is the ore-controlling structure of the Jiaodong gold deposit and is the ore-bearing structure. The shallow Zhang Shekou crevasse produced by the right-lateral strike slip faulting in the late Yanshanian period is the ore-hosting structure, and the dilatancy effect caused by the tensile deformation of the late Yanshanian period is the driving force for the up-filling of the deep liquid ore by “pumping”. Zhang shearing fractures to release the tectonic stress in a pulsating manner, the measured differential stress value of 120 ~ 40MPa; from early to late decay trend. The ore-bearing fault pulsation activity can be divided into two dynamic states or stages of brittle fracture and brittleness-ductile expansion, which restrict the direction and strength of mineralization and controlled reaction in the hydrothermal reaction system, and thus control the enrichment of metallogenic elements and dispersion. The thermodynamic evolution of hydrothermal ore-forming reaction system and the coupling of tectonic kinetic conditions are the mechanisms for the formation of gold-rich ore.