矿床与断层空间关系研究  

RESEARCH ON THE SPATIAL ASSOCIATION BETWEEN ORE DEPOSITS AND FRACTURES

作　　者：毕天平[1] 胡志勇 金成洙[1] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004 [2]西佛罗里达大学,美国佛罗里达州32514

出　　处：《地质与资源》2010年第2期164-169,共6页Geology and Resources

摘　　要：利用空间统计分析方法研究辽宁地区矿床与断层构造之间的空间位置关系.首先利用里普利(Ripley)K函数和双变量J函数验证矿床在空间上存在聚集于断层附近的趋势;其次建立基于泊松过程的条件强度公式来模拟矿床与断层之间的空间关系,并且将该数学公式在统计软件R中进行模型拟合;最后利用被拟合的模型公式和可见的断层构造来分析预测各个区域矿床的条件强度值,通过圈定高强度的矿床预测区域来指导找矿工作.This study uses spatial statistical methods to investigate spatial relationship between ore deposits and fractures in Liaoning Province of China.Firstly,Ripley＇s K-function and bivariate J function find that the ore deposits have a clustering trend around the fractures.Secondly,a conditional intensity formula for ore deposits based on Poisson process is used to model the ore deposits＇ spatial dependence on the fractures,and the formula of model is fitted in statistics software called R.Finally,the fitted model is used to predict high intensity areas of invisible ore deposits based on locations of visible fractures,which could be used to guide ore deposit exploration.

关 键 词：双变量J函数 泊松过程 空间联系 模型拟合 

分 类 号：P613[天文地球—矿床学] P612[天文地球—地质学]