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+。
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 vanadium, accounting for 25.78%. The vanadium occurrence is mainly same-phase in the micaeeous 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 roseoelite. The roseoelite has two types：l M and 2MI. The vanadium is between the structural layers of the mica in the 1 M type. Vanadium replaces aluminum not only in the six-ligand octahedral layer, but also in the Si-O tetrahedral layer.
出处
《地质与勘探》
CAS
CSCD
北大核心
2010年第4期643-648,共6页
Geology and Exploration
基金
全国危机矿山项目(编号:200614004)
(编号:200899500)资助
关键词
钒赋存状态
黑色岩系
千家坪钒矿床
南秦岭
occurrence of vanadium, black rock series, Qianjiaping vanadium deposit, South Qinling
