宁芜玢岩铁硫矿床成矿规律和找矿预测研究  

A STUDY OF ORE-FORMING REGULARITY AND ORE PROGNOSIS OF PORPHYRITE IRON-SULFUR DEPOSITS IN NINGWU (NANJING-WUHU) AREA

作　　者：赵玉琛 

机构地区：[1]安徽省地矿局322地质队

出　　处：《矿床地质》1990年第1期1-12,共12页Mineral Deposits

摘　　要：宁芜玢岩铁硫矿床是受中生代火山喷发、火山构造、浅源富钠闪长岩浆控制的一套矿床组合,空间上具“三部八式”分布规律。成矿作用与富钠闪长岩浆演化有成因联系,为构造一岩控成矿系列。积50余年找矿经验认为:地质与物探工作配合,通过地质调查■物探■地质解释→钻探验证的工作循环,是最合理、最见成效的找矿方法。依现有地质概念和重磁找矿模型,通过矿床分布律、信息量、秩相关、回归分析和蒙特卡洛模拟等手段得出:宁芜成矿带本身找矿潜力已十分微弱,而盆地南部雍镇矿田及其南延地区是较有希望的。The iron-sulfur deposits in Ningwu area make rip a suite of ore associations controlled by Mesozoic volcanic eruption, volcanic' structure and shallow-source soda-rich diorite magma and showing 'three-part and eight-style' distribution pattern. The mineralization is genetically related to the evolution of soda-rich diorite magma and thus belongs to structural-rook controlled metallogenic series.The ore-prospecting experience gained in the past fifty years indicates that the coordination of geological and geophysical work together with the cyclic procedure of geological survey geophysical prospecting geological interpretation→drilling inspection seems to be the most reasonable and effective ore prospecting method.On the basis of the available geological conception and the gravitymagnetic ore prospecting models as well as the data obtained in such aspects as distribution pattern of ore deposits, quantity of information, rank correlation regression analysis and Monte-Carlo simulation, it is concluded that the ore prospecting potentiality in the Ningwu metallogenic belt proper is rather poor, but the Yongzhen orefield and its southward extension seem to be quite promising.

关 键 词：铁硫矿 成矿 找矿 矿床 预测 

分 类 号：P618.310.5[天文地球—矿床学]