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昆明冶金高等专科学校学报 ›› 2019, Vol. 35 ›› Issue (5): 16-22.DOI: 10.3969/j.issn.1009-0479.2019.05.003

• 资源开发与测绘 • 上一篇    下一篇

云南宝山矿区锗煤地球化学特征探析

刘 伟,姚应文,尹 琼,方 娜,李宛鸿   

  1. 1.昆明冶金高等专科学校冶金与矿业学院,云南昆明 650033;2.云南地质工程勘察设计研究院,云南昆明 650000
  • 收稿日期:2019-10-16 出版日期:2019-10-31 发布日期:2019-10-31
  • 作者简介:刘伟(1983-),男,云南昆明人,讲师,工学硕士,主要从事矿产地质研究。
  • 基金资助:
    云南省教育厅科学研究基金资助性项目:云南宣威宝山矿区煤中锗的富集规律(2016ZZX243)。

Geochemical Characteristics of Germanium  Coal in Baoshan Mining Areas in Yunnan Province

LIU Wei,YAO Yingwen,YIN Qiong,FANG Na,LI Wanhong   

  1. 1.Faculty of Metallurgy and Mining Engineering,Kunming Metallurgy College,Kunming650033,China;2.Yunnan Geological Engineering Survey and Design Institute,Kunming 650000,China
  • Received:2019-10-16 Online:2019-10-31 Published:2019-10-31

摘要: 为进一步分析云南宝山矿区锗煤的成矿地质环境,探求其内在规律及影响因素,对该区含锗煤采样并进行地球化学测试。其灰分与挥发分均与锗含量表现出正相关的特点,而灰分指数与锗含量则为负相关;锗含量与灰分中的KO、NaO显著相关,相关系数分别0.702、0.907;ΣREE与锗含量呈正相关,δEu值和δCe值总体表现为负异常(<1);稀土分配模式图总体呈缓慢左倾的特点(HREE的相对富集),说明该区锗煤形成于碱性还原环境,还原性越强则越易形成锗的富集,而锗的活化、迁移则与当地的热液活动密切相关。

关键词: 锗, 地球化学, 热液

Abstract: In order to further analyze the metallogenic geological environment of germanium coal in Baoshan mining area in Yunnan Province,and explore its intrinsic regularity and influencing factors,the samples of germanium-bearing coal in this area were taken and geochemical tests were carried out.The ash and volatile matter of germanium coal were positively correlated with germanium content,while the ash index was negatively correlated with germanium  content.The germanium  content was significantly correlated with KO and NaO in ash,with correlation coefficients of 0.702 and 0.907,ΣREE is positively correlated with germanium content,and the values of δEu and δCe are generally negative(<1).The distribution pattern of rare earth is generally slow and left-leaning(HREE relative enrichment).This indicates that germanium coal in this area was formed in alkaline reduction environment.The stronger the reducibility,the easier the formation of germanium enrichment.The activation and migration of germanium are closely related to local hydrothermal activities.

Key words: germanium, geochemistry, hydrothermal solution

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