| 朱红周.南秦岭千家坪钒矿床钒赋存状态研究[J].地质与勘探,2010,46(4):643-648 |
| 南秦岭千家坪钒矿床钒赋存状态研究 |
| Study on Occurrence of Vanadium in the Qianjiaping Vanadium Deposit of South Qinling |
| 投稿时间：2009-10-09 修订日期：2010-06-21 |
| DOI： |
| 中文关键词: 钒赋存状态 黑色岩系 千家坪钒矿床 南秦岭 |
| 英文关键词: occurrence of vanadium,black rock series,Qianjiaping vanadium deposit,South Qinling |
| 基金项目:全国危机矿山项目(编号:200614004 ),(编号:200899500)资助。 |
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| 中文摘要: |
| [摘要]千家坪钒矿床产于南秦岭下寒武统黑色岩系中,矿石类型主要为硅质岩夹泥岩型。该矿
床钒元素赋存状态研究,对于探讨钒成矿富集机制和钒提取利用均有重要意义。物相分析、X 衍射分析
和电子探针等研究共同表明:千家坪钒矿床中钒以三价钒为主,占74. 22%,五价钒次之,占25. 78%;钒
主要以类质同相形式赋存于云母类矿物中,占61. 72%,其次以吸附状态存在于炭质、粘土矿物中,游离
氧化物中少量。含钒矿物主要为钒云母,少量含钒铁、铜氧化物和钒钛磁铁矿等。钒云母有1M 型和
2M1 型两种标型,1M 型钒位于云母结构层之间;2M1 型钒不仅取代了位于六次配位的八面体层中的
Al3+ ,而且取代了Si-O 四面体层中的Al3+ 。 |
| 英文摘要: |
| Abstract:The Qianjiaping vanadium deposit was hosted in the lower Cambrian black rock series. The Study on occurrence of this deposit is important
to the understanding of the ore enriched mechanism and the extraction and exploitation of vanadium. Analyses of the material phase,X-ray diffraction and
electron microprobe observation suggest that the vanadium of the deposit is dominated by low valence,accounting for 74. 22%, next is pentavalent vanadi鄄
um,accounting for 25. 78%. The vanadium occurrence is mainly same-phase in the micaceous minerals,accounting for 61. 72%,secondly absorbed in the
carbon base and clay minerals, and a little in the oxides. The mineral with vanadium mainly is roscoelite. The roscoelite has two types:1M and 2M1. The
vanadium is between the structural layers of the mica in the 1M type. Vanadium replaces aluminum not only in the six-ligand octahedral layer,but also in
the Si-O tetrahedral layer. |
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