庐山岩脉空间分布特征分析  

Analysis of Spatial Distribution Characteristics of Dike in Lushan

作　　者：刘丹阳 韩易[1] Liu Danyang;Han Yi(Tianjin Institute of Surveying and Mapping,Tianjin 300382,China)

机构地区：[1]天津市测绘院,天津300382

出　　处：《城市勘测》2020年第4期187-191,197,共6页Urban Geotechnical Investigation & Surveying

摘　　要：岩脉的空间分布特征可以反映某一地区的构造运动,对研究山体的形成具有重要意义。本文对庐山地区的65块岩脉和169条断层进行实验,并对岩脉和断层的走向进行计算,计算方法采用最长边法和最小外接矩形法。基于DEM用三点法计算岩脉倾角,然后对岩脉的走向数据和倾角数据进行模糊聚类分析,本文又利用岩脉的走向数据和断层的走向数据绘制走向玫瑰花图,分析庐山岩脉的空间分布特征。研究结果表明:庐山岩脉的分布与断层的分布有一定相关性,其走向也与断层的走向大致一致。此外,庐山岩脉可分为两类,推测是两次历史事件形成的。The spatial distribution characteristics of dike can reflect the tectonic movement in a region,which is of great significance to the study of the formation of the mountain.This paper proceed experiment with 65 pieces of dike and 169 strips of fault in the area of lushan.This paper calculate the direction of dike and fault in the area of lushan.This paper calculate the direction of dike with,using the method of the longest edge and the method of minimum circumscribed rectangle to draw to the data of direction.Based on DEM of dike,angle can be calculated by the three point method.This paper proceed fuzzy clustering analysis and use the direction of dike and fault in the area of lushan to draw the rose diagram,histogram and graph of the curve direction,then the spatial distribution characteristics of the Lushan dike are analyzed.The results show that the distribution of Lushan dikes is related to the distribution of faults,and the direction of the dikes is similar to that of the faults.In addition,lushan dike can be divided into two types,so they may be formed by two historical events.

关 键 词：庐山岩脉 产状计算 模糊聚类 空间分布特征 

分 类 号：P623[天文地球—地质矿产勘探]