A FRACTAL RELATIONSHIP BETWEEN VEIN THICKNESS AND GOLD GRADE IN DRILL CORE FROM LA-CODOSERA, SPAIN

被引：105

作者：

SANDERSON, DJ ^{[1
]}

ROBERTS, S ^{[1
]}

GUMIEL, P ^{[1
]}

机构：

[1] INST TECNOL GEOMINERA ESPANA,E-28003 MADRID,SPAIN

来源：

ECONOMIC GEOLOGY AND THE BULLETIN OF THE SOCIETY OF ECONOMIC GEOLOGISTS | 1994年 / 89卷 / 01期

关键词：

D O I：

10.2113/gsecongeo.89.1.168

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Analysis of quartz vein thicknesses and gold grades in drill core from western Spain indicates that both approximate a power law distribution, suggesting an underlying fractal relationship. Log-log plots of cumulative frequency (N) against vein thickness (t) show systematic changes in relation to gold grade. The exponent D, in a power law of the form N = C t(-D), is lower for higher gold grades, indicating that a greater proportion of the dilation is taking place on the thicker veins, which are interpreted as providing interconnected conduits for gold-bearing fluids. Thus, monitoring the vein thickness distribution may provide a means of discriminating mineralized and barren structures in vein-hosted mineral deposits.

引用

页码：168 / 173

页数：6

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