湘中断裂体系分维与锑矿分布  

Fractal Dimension of Fault Systems and Antimony Deposit Distribution in Central Hunan

作　　者：卢新卫[1] 马东升[1] 

机构地区：[1]南京大学地球科学系,210093

出　　处：《地质论评》1998年第5期542-546,共5页Geological Review

基　　金：国家自然科学基金(编号49473186)

摘　　要：笔者将分形几何学的原理和方法,应用于湘中地区断裂体系的二维平面分布特征研究,发现在研究的标度范围内(r约2～80km)不仅具有统计自相似性,并且同一地区,不同分区具有不同的分维值D。分维值分布特征为东南区分维值高于西北区分维值。将本区断裂体系的这种分维值分布特征与锑矿床分布特征对比,可发现锑矿床(点)产出较多,矿床规模较大的地区,其分维值较大。The principles and methods of fractal geometry are applied to the study of fractal characteristics of two-dimensional fault systems in central Hunan. The authors find that these fault systems not only possess statistical self-similar characteristics in the scale extent studied (r=0. 1~4 cm, about 2-80 km) but also have different D values of fractal dimension in different subranges of the same area. The distribution of D values of fractal dimension in sub-ranges shows that the D value in the southeast sub-range is slightly higher than that in the northwest subrange. Comparison of the distribution characteristics of D values with those of antimony deposits in central Hunan reveals that the more and larger the antimony deposits are the higher the D value will be, given the same spacial location.

关 键 词：分形 断裂体系 锑矿床 矿床分布 

分 类 号：P618.660.6[天文地球—矿床学]