【作者】 邓浩； 刘晓霞； 赵莹； 张苗苗； 毛先成；

【Author】 DENG Hao;LIU Xiao-xia;ZHAO Ying;ZHANG Miao-miao;MAO Xian-cheng;Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring,Mini stry of Education, Central South University;School of Geosciences and Info-Physics, Central South University;

【机构】 中南大学有色金属成矿预测与地质环境监测教育部重点实验室； 中南大学地球科学与信息物理学院；

【摘要】 金川铜镍矿床是世界第三大镍铜硫化物岩浆矿床,现有研究表明其成矿模式为岩浆通道成矿,但是对于金川超基性岩体的侵位过程存在较大争议。为探索岩体的侵位过程,本文将岩浆侵位描述为Markov过程,提出一种基于Markov链的岩体侵位模拟算法,实现对金川超基性岩体侵位过程的模拟。以金川Ⅱ矿区为例,探寻了侵位过程与矿化的关联及岩浆通道骨架,为在矿床深部寻找第二成矿空间提供了方向和线索。更多还原

【Abstract】 The Jinchuan Cu-Ni deposit is the third largest Cu-Ni sulfide magmatic deposit in the world. Recent researches show that the formation of the Jinchuan deposit is due to the magma conduit sytem. However, there is a great controversy over the procedure of the ultrabasic pluton emplacement. In order to explore the emplacement process of the pluton mass, this paper proposes a method for simulation of the magma flow trajectory by regarding the magma flowing as Markov process, which thus simulates the emplacement process of the ultrabasic pluton in Jinchuan deposit. A case study conducted in sector II of Jinchuan deposit shows the skeleton of magma conduit as well as the correlation between magma conduit skeleton and magma flow. Evidence for discovering new metallogenic space in deep areas is also gained according to the extending direction of the magma conduit skeleton.更多还原