摘要
广西下雷锰矿是我国目前最大的锰矿床。笔者根据该矿床的地质特征、控矿构造和矿石矿物组合等特点,认为是一个具有沉积作用、海底火山-热水沉积和风暴作用等,多因素多阶段、连续成矿的国内少有的矿床。
Typical manganese storm deposits in Xialei, Guang Xi are composed of gravel fragment man-ganese ores, pisolitic or oolitic manganese ores and banded (streddy) mangganese ores etc in which abun-dant sedimentary structures formed in differnt stuges of storm activity are present, ① sharp basalboundary and basal surface structures such as gutter casts, pocket casts and lag gravel; ② hummokycross stratification; ③ post-storm fossil trace. Therefore the author, in the light of the adove informa-tions, holds that Xialei Mn-deposit is of storm origin.
出处
《地质找矿论丛》
CAS
CSCD
1991年第4期63-70,共8页
Contributions to Geology and Mineral Resources Research
