A. Shevko, А Я Шевко, V. Kalugin, Василий Калугин, M. P. Gora, М П Гора, N. Karmanov, Н С Карманов
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引用次数: 0
Abstract
We found five boron minerals in the taxitic gabbrodolerites near the upper contact of the Norilsk-1 ore-bearing intrusion. These are kotoite Mg3(BO3)2, suanite Mg2B2O5, warwickite (Mg,Ti,Fe,Cr,Al)2O(BO3), ludwigite (Mg)2Fe3+O2(BO3), and azoproite (Mg,Fe2+)2(Fe3+,Ti,Mg)O2(BO3). This is the first discovery of oxyborate minerals in the Norilsk province. They form monomineral and polymineral inclusions in olivine grains from the recrystallized areas of the taxitic intrusive rocks. Boron minerals arose at the late stage of the magma crystallization or just after that as a result of the interaction of the rock with the boron-bearing fluid containing in the ore-bearing magma. Presence of the micro inclusions of the oxyborates as well as higher boron content in rocks can be used as a criterion for searching of the Pt-Cu-Ni-bearing intrusions in the Norilsk province.
在靠近诺里尔斯克-1含矿侵入体上部接触的滑石辉长岩中发现了5种硼矿物。这些是钾辉石Mg3(BO3)2，钾辉石Mg2B2O5，镁辉石(Mg,Ti,Fe,Cr,Al)2O(BO3)，铁辉石(Mg)2Fe3+O2(BO3)和偶氮石(Mg,Fe2+)2(Fe3+，Ti,Mg)O2(BO3)。这是诺里尔斯克省首次发现氧化硼酸盐矿物。它们在滑石质侵入岩再结晶区橄榄石颗粒中形成单矿物和多矿物包裹体。硼矿物出现在岩浆结晶后期或结晶之后，是岩石与含硼岩浆中的含硼流体相互作用的结果。含氧硼酸盐微包裹体的存在以及岩石中较高的硼含量可以作为寻找诺里尔斯克省含pt - cu - ni侵入体的标准。
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