摘要
锡矿山锑矿床为严格受构造控制的热液型矿床,成矿成晕具有多期多阶段叠加的特点;F75断裂破碎带中元素的含量及叠加晕特征表明,该断裂不仅是导矿构造,而且在局部有利部位成为储矿构造;文章以飞水岩矿段为例,总结了矿体的元素组合及其相关关系,确定了不同成矿阶段矿体的特征元素;单一次成矿形成的原生晕轴向分带序列是As,Hg,F,Li,Ba→Sb→Ag,Cu,Pb,Zn→Mo,Bi,Mn,Co→Ni,Ti,V,W,Sn,Sr;在识别不同成矿阶段的矿体(晕)在空间上的叠加结构基础上,建立了矿床构造叠加晕模式,确定了盲矿预测标志,对矿床深部进行盲矿预测,提出了盲矿的找矿靶位;初步验证工作表明,构造叠加晕方法对锡矿山锑矿飞水岩矿段深部盲矿体的预测效果较好。
The antimony deposit in Xingshan area is a hydrothermal deposit strictly controlled by fault. The ore-forming and halo-forming processes are characterized by multi-epoch （stage） superimposition. The contents of elements and characteristic of superimposed halos in fracture zone FTs indicate that the fault is not only an ore conducting fracture, but also an ore-hosting fracture locally. Combinations of elements and their relations are summarized and characteristic elements of each ore-forming stage determined. For each ore-forming stage the elements zoning series along axis of the primary halo is As, Hg, F, Li, Ba→Sb→Ag, Cu, Pb, Zn-~Mo, Bi, Mn, Co→Ni, Ti, V, W, Sn, St. Based on identifiing the spatial stack structure of ore bodies（halo）that formed in different mineralization stages, we have established the structural superimposed halo model of the deposit and marks of blind ore prognosis. With the model and marks the deep blind ore prognosis is carried out and targets pointed out. The check result shows that the structural superimposition prognosis of deep blind ore body is fruitful in Feishuiyan ore block.
出处
《地质找矿论丛》
CAS
CSCD
2014年第4期587-595,共9页
Contributions to Geology and Mineral Resources Research
基金
湖南省国土资源厅项目"湖南省锡矿山式硅化岩型锑矿床成矿预测与找矿方法研究"(编号:201103028)资助
关键词
锡矿山锑矿
硅化作用
构造叠加晕
盲矿预测
湖南省
Xikuangshan antimony deposit
silicification
structural superimposition halo
blind ore body prognosis
Hunan province
