河北地质大学学报2024，Vol.47Issue(1)：11-21,11.DOI:10.13937/j.cnki.hbdzdxxb.2024.01.002
偏光显微镜和XRD在南非Postmasburg锰矿定性分析中的应用
Application of Polarization Microscope and XRD in Qualitative Analysis of Postmasburg Manganese Ore in South Africa
常洪伦 1李甘雨 2韩美伶 3杜俊 1魏浩 1赵东芳 4时毓 5杨大勇6
作者信息
- 1. 河北地质大学 实验实践教学中心,河北 石家庄 050031
- 2. 河北地质大学 发展规划处, 河北 石家庄 050031
- 3. 河北省地质矿产勘查开发局第四地质大队, 河北 承德 067000
- 4. 中化地质矿山总局地质研究院, 河北 涿州 072750
- 5. 桂林理工大学广西隐伏金属矿产勘查重点实验室, 广西 桂林 541004
- 6. 沈阳建筑大学 交通与测绘工程学院, 辽宁 沈阳 110168
- 折叠
摘要
Abstract
Mn-rich ores,conglomerate-type ores and conglomerate-bearing ferruginous ores are identified according to zonation and grade differentiation of ores in BIF-type ore-bodies in Postmasburg Manganese Field,South Africa.To determine the mineral composition of the ores and understand relationship of ore types with composition,different types of ores are selected and the components are identified.Polarization microscope identification and X-ray diffraction were applied in qualitative analysis for the ores based on polarization features and characteristic diffraction peaks of minerals.The result shows that the major minerals in Mn-rich ores are bixbite and braunite,and almost all the ore-minerals in conglomerate-type ores are hematite with minor ephesite,while minerals in conglomerate-bearing ferruginous ores are dominated by hydrosialite with major muscovite and minor hematite as ore-mineral.Thus,polarization microscope identification and XRD show good coherence and complementarity in mineral identification and can get accurate qualitative analysis by combining,especially for thick sedimentary deposit as lithology and rock facies changed in succession.关键词
偏光显微/XRD/岩矿/定性/南非Key words
polarization microscope/X-ray diffraction/rock and mineral/qualitative analysis/South Africa分类
天文与地球科学引用本文复制引用
常洪伦,李甘雨,韩美伶,杜俊,魏浩,赵东芳,时毓,杨大勇..偏光显微镜和XRD在南非Postmasburg锰矿定性分析中的应用[J].河北地质大学学报,2024,47(1):11-21,11.
