摘要
贵州开阳地区是我国最重要的富磷矿产区,震旦系陡山沱组磷矿层是区内主要的工业矿体。断裂构造是区内磷矿层空间分布范围、延展规模、矿体的连续性、矿体形态特征等主要的控制因素,因此,对断层的控制是区内磷矿勘探工作的一个重点。由于受到后期构造切割影响,局部区域矿体形态较复杂,且常因次生小断层的影响,导致钻孔厚度变薄,甚至无矿。因此,在磷矿实际勘探工作中,勘探钻孔的布置应以满足相应勘查研究程度要求为准则布置钻孔进行施工。
Kaiyang area of Guizhou is the most important phosphate-rich area in China,and the phosphate rock layer of Doushantuo Formation of Sinian system is the main industrial ore body in this area.Fault structure is the main controlling factor of the spatial distribution range,extension scale,continuity of ore body,morphological characteristics of ore body,etc.Therefore,the control of fault is a key point of phosphate exploration in this area.Due to the influence of later structural cutting,the shape of ore bodies in local areas is complicated,and often due to the influence of secondary small faults,the borehole thickness becomes thinner,or even there is no ore.Therefore,in the actual exploration of phosphate rock,the layout of exploration boreholes should be based on the principle of meeting the requirements of the corresponding exploration research degree.
作者
杨光亮
YANG Guangliang(Guizhou Geological Exploration Institute,China Chemical Geology and Mine Bureau,Guiyang 550002,China)
出处
《四川有色金属》
2022年第4期15-19,共5页
Sichuan Nonferrous Metals
关键词
磷矿层
断裂构造
勘查工程间距
贵州开阳
phosphate rock layer
fault structure
exploration engineering spacing
Kaiyang of Guizhou
