应用MORPAS系统证据权重法进行多源信息成矿预测——以澜沧江南段地区为例  

APPLYING EVIDENCE WEIGHT MODEL OF MORPAS SYSTEM TO PROCESS MULTI-SOURCE INFORMATION FOR PREDICTING MINERALS RESOURCES——EXAMPLE FROM THE SOUTHERN LANCANGJIANG AREA

作　　者：刘星[1] 胡光道[1] 

机构地区：[1]中国地质大学数地遥感所,武汉430074

出　　处：《地质与勘探》2003年第4期65-68,共4页Geology and Exploration

基　　金：国土资源部科技项目(编号:20010305)资助。

摘　　要：在分析了成矿预测的特点并在对澜沧江南段铜多金属的成矿规律深入研究的基础上,利用MORPAS系统抽取构置了来自地质异常场、成矿异常场和矿化异常场等多源信息的16个预测变量;把研究区划分为2.5km×2.5km大小的1334个统计单元,利用证据权重法的数学模型对研究区铜多金属矿产进行预测;圈定了3级成矿远景区;研究表明证据权法用于成矿预测方法简单,结果可靠性较高;利用MORPAS系统进行成矿预测可以提高工作的效率和精确度。Cu-polymetallic mineralizing regulars in the southern Lancangjiang area are discussed. After analyzed characters of minerals predication, 16 variables from multi-source information such as geological abnormity field, ore-forming abnormity field and mineralization abnormity field are abstracted and constructed by the MORPAS system. The research area has been divided into 1334 units with 2.5 km×2.5 km for each unit. Copper polymetallic potential is calculated by evidence weight model, and 3 levels targets care selected. The research has shown that the evidence weight model is easy to realize and has reliable results. The MORPAS system is helpful to increase efficiency and accuracy of mineralizing predication.

关 键 词：MORPAS系统 证据权重法 多源信息 成矿预测 澜沧江 地质异常场 成矿异常场 矿化异常场 

分 类 号：P612[天文地球—矿床学] P628[天文地球—地质学]