%A %T Lithological Features of Basalt in Gejiu Eastern Area, Yunnan Province %0 Journal Article %D 2006 %J Science & Technology Review %R %P 70-72 %V 24 %N 0602 %U {http://www.kjdb.org/CN/abstract/article_1048.shtml} %8 2006-02-10 %X Gejiu tin ore deposit, which is located in Gejiu eastern area, is a supersized polymetal ore deposit majored in tin and copper which possesses some characteristics of volcano-sedimentary ore deposit. Because it is superimposed the granit of the Yanshanian epoch, the basalt of Gejiu formation in Middle Triassic Series is metamorphosed intensively. This study researched into the lithological features of basalt in the area. It's proved that the basic rock possesses textural and structural features of basalt, which is basalt, instead of dolerite.