铜陵冬瓜山铜矿床的品位分形结构特征及其地质意义
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摘要
文章以冬瓜山铜矿床为研究对象,应用分形理论对矿床品位的分形结构特征进行研究,计算了主矿体整体和不同区段的品位分布的分维数D值,D值变化反映矿体在50~52线之间变化最不均匀,为确定勘探网度和矿床经济价值评估提供有益的参考。
The application of fractal theory on the fractal structural characteristics of the deposit grade distribution is an effective way to reveal the spatial variability of it.Taking the Dongguashan copper deposit as example,we analyze the fractal distribution of the Cu grade,and calculate the fractal dimension(D) of the entirety of main orebody and its different sections.The variation in the fractal dimension demonstrates that the orebody is most inhomogeneous at exploration line 50~52 which can be taken as a useful reference for designing the exploratory grid and evaluating the deposit.
The application of fractal theory on the fractal structural characteristics of the deposit grade distribution is an effective way to reveal the spatial variability of it.Taking the Dongguashan copper deposit as example,we analyze the fractal distribution of the Cu grade,and calculate the fractal dimension(D) of the entirety of main orebody and its different sections.The variation in the fractal dimension demonstrates that the orebody is most inhomogeneous at exploration line 50~52 which can be taken as a useful reference for designing the exploratory grid and evaluating the deposit.
引文
[1]Mandelbrot B B.Fractals:From,Chance,and Dimension[M].San Francisco:W H Freeman Co,1977.
[2]Mandelbrot B B.Fractal Geometry of Nature[M].San Francis-co:W H Freeman Co,1982.
[3]Qingfei Wang,Jun Deng,Huan Liu.Fractal models for ore re-serve estimation[J].Ore Geology Reviews,2010,37(1):2-14.
[4]Xie Shuyun,Yang Yongguo,Bao Zhengyu.Mineral resource a-nalysis by parabolic fractals[J].Mining Science and Technolo-gy,2009,19:91-96.
[5]Mecaffrey K J W,Johnston J D.Fractal analysis of a mineralizedvein deposit:Carraghinalt gold deposit,County Tyrone[J].Min-eralium Deposita,1996,31:52-58.
[6]Sanderson D J,Roberts S A.Fractal relationship between veinthickness and gold grade in drill core from La Co-dosera,Spain[J].Economic Geology,1994,89:168-173.
[7]沈步明,沈远超.新疆某金矿的分数维特征及其地质意义[J].中国科学(B辑),1993,23(3):297-302.
[8]谢焱石,谭凯旋,等.湘西沃溪金锑钨矿床分形成矿动力学[J].地学前缘,2004,11(1):105-112.
[9]金章东.江西德兴铜厂斑岩体铜品位的分形结构[J].矿床地质,1998,17(4):363-368.
[10]魏一鸣,童光煦.矿床品位分布的分形特征研究[J].矿业研究与开发,1996,16(1):1-4.
[11]陈颙,陈凌.分形几何学[M].北京:地震出版社,2005.
[2]Mandelbrot B B.Fractal Geometry of Nature[M].San Francis-co:W H Freeman Co,1982.
[3]Qingfei Wang,Jun Deng,Huan Liu.Fractal models for ore re-serve estimation[J].Ore Geology Reviews,2010,37(1):2-14.
[4]Xie Shuyun,Yang Yongguo,Bao Zhengyu.Mineral resource a-nalysis by parabolic fractals[J].Mining Science and Technolo-gy,2009,19:91-96.
[5]Mecaffrey K J W,Johnston J D.Fractal analysis of a mineralizedvein deposit:Carraghinalt gold deposit,County Tyrone[J].Min-eralium Deposita,1996,31:52-58.
[6]Sanderson D J,Roberts S A.Fractal relationship between veinthickness and gold grade in drill core from La Co-dosera,Spain[J].Economic Geology,1994,89:168-173.
[7]沈步明,沈远超.新疆某金矿的分数维特征及其地质意义[J].中国科学(B辑),1993,23(3):297-302.
[8]谢焱石,谭凯旋,等.湘西沃溪金锑钨矿床分形成矿动力学[J].地学前缘,2004,11(1):105-112.
[9]金章东.江西德兴铜厂斑岩体铜品位的分形结构[J].矿床地质,1998,17(4):363-368.
[10]魏一鸣,童光煦.矿床品位分布的分形特征研究[J].矿业研究与开发,1996,16(1):1-4.
[11]陈颙,陈凌.分形几何学[M].北京:地震出版社,2005.
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