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九瑞地区曾经历过长期多旋回构造运动,其中燕山旋回所伴随的岩浆活动是本区内生铜金矿床形成的关键条件之一.本区燕山期岩浆岩以同熔型中酸性侵入岩为主,多期次侵位的众多岩体构成一岩浆岩系统,该系统在空间上具有垂向多层分支和横向分带结构,不同深度层次岩浆岩的形态、产状、规模和成矿作用是不同的.本文通过计算武山岩株体岩浆热能和蚀变矿化所需热能,证明中—浅部岩浆体冷凝所释放的热量,远不能满足武山这类大型铜矿形成所需能量,只能由深部岩浆房的超临界气液流体通过对流带来,古地下水对流系统也参与了热能的分配和成矿.
The Jurui area has experienced long-term multi-cycle tectonic movement, and the magmatic activity accompanying Yanshan cycle is one of the key conditions for the formation of endogenous copper-gold deposits in this area. The Yanshanian magmatic rocks in this area are dominated by medium- The main and multi-stage emplacement of a large number of rock mass constitutes a magmatic rock system, the system in space with vertical multi-level branches and lateral zonation, different depth levels of magmatic rocks in the shape, occurrence, size and mineralization Is different.Through calculating the thermal energy of magmatic rocks and the heat energy required for alteration mineralization in Wushan rock, it is proved that the heat released by the condensation of magma in the middle-shallow part can not meet the energy required for the formation of large-scale copper ores in Wushan The supercritical gas-liquid fluid from the deep magma chamber can be brought by convection. Paleo-groundwater convection systems are also involved in the distribution and mineralization of thermal energy.