期刊论文

Fractal Analysis of Terrestrial Gamma Ray Spectrometry in Jinshiling District of Chenzhou,Hunan

中文

南华大学学报(自然科学版)

1673-0062

2018

32

4

20-24

10.19431/j.cnki.1673-0062.2018.04.004

湖南省军民融合产业发展专项科研类项目（2015JMH01-Z03）；

本校为第一机构

湖南郴州金狮岭地区是一个潜在的Pb-Zn-U多金属矿化区,对该地区进行了系统的地面伽马能谱测量,并应用分形理论对U测量数据进行分析.该区U含量分布具有明显的双分形特征,表明该区受到了多期地质作用的叠加.第一个分形分维值很小（D1=0.083）,代表了第一次地质作用和低的U含量背景值;第二个分形的分维值较大（D2=2.523）,代表了后期地质作用特别是成矿作用的叠加,并有较强的U富集作用.其分形临界值（3.37μg/g）可作为该区铀矿化的异常下限值.结果还表明该区U异常区分布较大且连续性好,具有较好的成矿远景.

Jinshiling district,loated in Chenzhou city,Hunan province,is a potential Pb-ZnU polymetallic mineralization area.The terrestrial gamma ray spectrometry measurements were carried out systematically in this district,and the measured data was analyzed using fractal theory.The results demonstrate that the distribution of U content in this district behave obvious bifractal characteristics,which indicats that this area is superimposed by multistage geological processes.The first fractal dimension is very small（D1=0.083）,whichrepresents the first g...