Wodginite as an indicator mineral of tantalum-bearing pegmatites and granites

IF 2.4 Q2 MINING & MINERAL PROCESSING Journal of Mining Institute Pub Date : 2023-04-20 DOI:10.31897/pmi.2023.19
V. Alekseev
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引用次数: 1

Abstract

In the composition of tantalum-niobates the tin-bearing wodginite group minerals (WGM) were found: wod-ginite, titanowodginite, ferrowodginite, ferrotitanowodginite, lithiowodginite, tantalowodginite, “wolframowodginite”. We reviewed the worldwide research on WGM and created a database of 698 analyses from 55 sources including the author's data. WGM are associated with Li-F pegmatites and Li-F granites. Wodginite is the most prevalent mineral, occurring in 86.6 % of pegmatites and 78.3 % of granites. The occurrence of WGM in granites and pegmatites differs. For instance, titanowodginite and “wolframowodginite” occur three times more frequently in granites than in pegmatites, whereas lithiowodginite and tantalowodginite do not appear in granites at all. The difference between WGM in granites and pegmatites is in finer grain size, higher content of Sn, Nb, Ti, W, and Sc; lower content of Fe3+, Ta, Zr, Hf; higher ratio of Mn/(Mn + Fe); and lower ratio of Zr/Hf. The evolutionary series of WGM in pegmatites are as follows: ferrowodginite → ferrotitanowodginite → titanowodginite → “wolframowodginite” → wodginite → tantalowodginite; in granites: ferrowodginite → ferrotitanowodginite → “wolframowodginite” → wodginite → titanowodginite. WGM can serve as indicators of tantalum-bearing pegmatites and granites. In Russia the promising sources of tantalum are deposits of the Far Eastern belt of Li-F granites containing wodginite.
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钨矿作为含钽伟晶岩和花岗岩的指示矿物
在铌酸钽的组成中,发现了含锡钨矿族矿物(WGM):木钨、钛钨、铁钨、铁钛钨、锂钨、钽钨、“黑钨”。我们回顾了世界范围内关于WGM的研究,并建立了一个包括作者数据在内的55个来源的698个分析的数据库。WGM与Li-F伟晶岩和Li-F花岗岩伴生。辉钼矿是最常见的矿物,在伟晶岩和花岗岩中分别占86.6%和78.3%。WGM在花岗岩和伟晶岩中的赋存状态不同。例如,钛黑钨矿和“黑钨矿”在花岗岩中的出现频率是伟晶岩的三倍,而锂黑钨矿和钽黑钨矿根本不出现在花岗岩中。花岗岩与伟晶岩中WGM的区别在于:晶粒尺寸更细,Sn、Nb、Ti、W、Sc含量更高;Fe3+、Ta、Zr、Hf含量较低;较高的Mn/(Mn + Fe)比;Zr/Hf比较低。伟晶岩中WGM的演化顺序为:铁钨矿→铁钛钨矿→钛钨矿→“黑钨矿”→钨钨矿→钽钨矿;在花岗岩中:铁钨辉石→铁钛钨辉石→“黑钨辉石”→钨辉石→钛钨辉石。WGM可作为含钽伟晶岩和花岗岩的指示物。在俄罗斯,极具潜力的钽资源是远东地区含铌酸锂花岗岩带的矿床。
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来源期刊
Journal of Mining Institute
Journal of Mining Institute MINING & MINERAL PROCESSING-
CiteScore
7.50
自引率
25.00%
发文量
62
审稿时长
8 weeks
期刊最新文献
Laboratory, numerical and field assessment of the effectiveness of cyclic geomechanical treatment on a tournaisian carbonate reservoir Determination of the grid impedance in power consumption modes with harmonics Sorption purification of acid storage facility water from iron and titanium on organic polymeric materials Wodginite as an indicator mineral of tantalum-bearing pegmatites and granites Оценка сдвиговой прочности горных пород по трещинам на основе результатов испытаний образцов сферическими инденторами
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