| 基于MORPAS的证据权重法在百顺地区铀成矿预测中的应用 |
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| 引用本文： | 陈金声,吴现兴.基于MORPAS的证据权重法在百顺地区铀成矿预测中的应用[J].铀矿地质,2011(5):302-308,320. |
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| 作者姓名： | 陈金声 吴现兴 |
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| 作者单位： | 广东省核工业地质局291大队;湖南省娄底市国土资源局; |
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| 摘 要： | 以比例尺均为1∶50000的地质矿产图,土壤地球化学图,航放U含量、U/K等值线图建立空间数据库;经空间统计分析,应用MORPAS系统的证据权重法筛选证据层,以印支期岩体、200 m半径构造线缓冲区、岩浆岩组合熵等21个证据层作为预测变量;以广东省百顺地区为研究区,根据证据权重法所求得的后验概率圈出多个找矿远景区。
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| 关 键 词： | MORPAS 证据权重法 预测 评价 百顺 |
An application of weight evidence method with MORPAS to uranium metallogentic prognosis in Baishun area |
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| CHEN Jin-sheng,WU Xian-xing.An application of weight evidence method with MORPAS to uranium metallogentic prognosis in Baishun area[J].Uranium Geology,2011(5):302-308,320. |
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| Authors: | CHEN Jin-sheng WU Xian-xing |
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| Institution: | CHEN Jin-sheng1,WU Xian-xing2(1.Team No.291,Guangdong Provincial Geology Bureau for Nuclear Industry,Foshan,Guangdong 528133,China,2.Bureau of Land Resources in Loudi City,Hunan Province,Loudi,Hunan 417000,China) |
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| Abstract: | With 1∶50000 geology and mineral resource map,1∶50000 soil geochemical maps and 1∶50000 aerial radiation UU / K contour maps,this paper first established a spatial database for spatial and statistical analysis.Then selected the beneficial uranium metallogenic evidenc by the method of their weight with MORPAS system,21 evidence layers such as pluton of Indo-Chinese period,200 m buffer areas of structure lines,entropy of pluton combination were used to act as prognosis variables.Finaly,several third grade prospect areas were delineated by the values of posterior probability of the weighted evidence. |
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| Keywords: | MORPAS evidence weighting method prognosis evaluation Baishun |
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