某花岗岩型铀矿田断裂构造的分形特征.pdf

第卷第期世界核地质科学
26 1 ,
年月
2009 3 World Nuclear Geoscience
某花岗岩型铀矿田断裂构造的分形特征
柯丹 1, 韩绍阳 1, 刘祜 1, 侯惠群 2
核工业北京地质研究院北京中国核科技信息与经济研究院北京
(1. , 100029; 2. , 100037)
基于分形理论提出了一种快速测量多区断裂分维值的方法并获得了研究区断裂分维
[摘要] , ,
值的平面等值图研究结果表明断裂分维值的大小较好地反映了断裂构造复杂程度的高低它们之
。, ,
间存在着正相关关系研究区花岗岩型铀矿田内约有的铀矿床位于断裂分维值偏高的
。 86% D (D>)
区域内表明断裂分维值越大越有利于花岗岩型铀矿成矿为建立该区花岗岩型铀矿新的预测标志
, , ,
提供了参考依据
。
花岗岩型铀矿断裂构造分维值预测标志
[关键词] ; ; ;
[中图分类号] ; + 2 [文献标识码] A [文章编号] 1672-0636(2009)01-0054-05
Fractal characteristics of faults
in a granite￣type uranium orefield
KE Dan1, HAN Shao￣yang1, LIU Hu1, HOU Hui￣qun2
(1. Beijing Research Institute of Uranium Geology, Beijing 100029, China;
2. China Institute of Nuclear Information and Economics, Beijing 100037, China)
Abstract: Based on fractal theory, one kind of fast method of measuring fractal dimension of fault is
presented in this paper. In addition, plane contour map showing fractal dimensions of faults in study
area is obtained with fast measuring method mentioned above. It is shown that magnitude of fractal
dimension is proportional to plexity of faults. More than 86% of known granite￣type uranium
deposits in the study area are located within the zones with fault fractal dimension greater than . A
conclusion can be drawn that the higher the fractal dimension of fault is, the more favorable to