摘要
个旧西区构造形迹可划分为四个构造带,分属五种构造体系。即东西向构造带属纬向构造体系,北东带分属新华夏系和“山”字型构造体系,北西带属“歹”字型构造体系,南北带属经向构造体系。 “歹”字型构造体系的红深断裂及发育其两侧的剪切断裂,是控制铅锌及伴生金银矿的区域性断裂;新华夏系及其与云南“山”字型体系的复合是含银铅锌矿的富集部位经向系及其与“歹”字型复合部位富集金(砷、汞)矿。
The structural features in western Gejiu ore field can be divided into four zones which belong to five stuctural systems respectively.
Hoeghe depth fracture zone of η-type structural system and its shear zones developed on both sides are regional fracture zone controlling lead-zinc and associated gold-silver deposits. Neocathaysian structureal system and its compounding portion of Yunnan epsilon(ε) structural system are the predominant parts for the enrichment of Silver-bearing lead-zinc deposits. Meridional structural system and its compoundings portion of eat (η)-type structure are enriched with gold (arsenic, mercury) mineralization.
出处
《矿产与地质》
1990年第2期35-42,共8页
Mineral Resources and Geology
