摘要
通过节理裂隙的现场观测统计,绘制出裂隙密度等值线图, 它可以定量地反映节理发育的密集程度及其优势方位,着重对含矿节理裂隙脉进行统计分析,得出含矿节理的倾向、倾角多服从正态分布.节理充填细脉状矿化主要是以北东向节理裂隙脉矿化为主,其次,有少量的北西向和近东西向节理脉状矿化.北东向节理脉走向一般为50～70°,倾角55～70°,细脉延伸长度一般为十几米至数十米,脉厚一般为0.1～2.5 cm,最大的细脉厚度达10 cm左右.
By means of compiling and investigating on the spot, crewce thickness contour diagram is drawn out based on the statistics. This diagram reflects the development degree of joint crevice and its major direction. Through statistical analysis of the joint crevice vein containing minerals, it is pointed out that both the trend and obliquity of the vein obey the normal distribution. The mineralization of the vein containing minerals is mainly in the northeast strike. Besides, there is a little mineralization in the northwest and in the nearly east and west. The trend of northeast vein is usually between 50°and 70°, and obliquity between 55° and 70°The extended length of veins ranges from several meters to tens of meters, and the thickness from 0.1 to 2.5 centimeters, with 10 centimeters at most.
出处
《昆明理工大学学报（理工版）》
2005年第4期5-8,共4页
Journal of Kunming University of Science and Technology(Natural Science Edition)
关键词
节理裂隙
成矿作用
岩体稳定性
广西大厂
锡矿床
joint crevice
mineralization
rock body stability
Guangxi Dachang
Tin deposit
