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首页> 外文期刊>Petrology >Hydrosilicate Liquids in the System Rare-Metal Granite-Na2O-SiO2-H2O as Accumulators of Ore Components at High Pressure and Temperature
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Hydrosilicate Liquids in the System Rare-Metal Granite-Na2O-SiO2-H2O as Accumulators of Ore Components at High Pressure and Temperature

机译：氢硅酸盐液体在系统中稀有金属花岗岩-NA2O-SiO2-H2O作为矿石组分的蓄能器，高压和温度

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摘要

Experimental investigations in the system rare-metal granite-Na2O-SiO2-H2O with the addition of aqueous solutions containing Rb, Cs, Sn, W, Mo, and Zn at 600 degrees C and 1.5 kbar showed that the typical elements of rare-metal granites (Li, Rb, Cs, Be, Nb, and Ta) are preferentially concentrated in hydrosilicate liquids coexisting with aqueous fluid. The same behavior is characteristic of Zn and Sn, the minerals of which are usually formed under hydrothermal conditions. In contrast, Mo and W are weakly extracted by hydrosilicate liquids and almost equally distributed between them and aqueous fluids. Liquids similar to those described in this paper are formed during the final stages of magmatic crystallization in granite and granitepegmatite systems. The formation of hydrosilicate liquids in late magmatic and postmagmatic processes will be an important factor controlling the redistribution of metal components between residual magmatic melts, minerals, and aqueous fluids and, consequently, the mobility of these components in fluid-saturated magmatic systems enriched in rare metals.
机译：在600℃和1.5 kbar的中加入含有Rb，Cs，Sn，W，Mo和Zn的水溶液的系统稀金属花岗岩-Na2O-SiO2-H2O的实验研究表明稀有金属的典型元素花岗岩（Li，Rb，Cs，Nb和Ta）优先集中在与含水流体共存的氢硅酸盐液中。相同的行为是Zn和Sn的特征，其矿物通常在水热条件下形成。相反，Mo和W通过氢硅酸盐液体弱萃取，并且在它们之间几乎同样地分布和含水流体。类似于本文中描述的那些类似于本文中描述的液体在花岗岩和Granitepmatite系统中的岩浆结晶的最终阶段期间形成。在后期岩浆和后造型工艺中形成氢硅酸盐液将是控制残留岩浆熔体，矿物质和含水流体之间的金属成分的重新分布的重要因素，因此，这些组分在富含稀有的流体饱和的岩浆体系中的这些组分的迁移率金属。

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  • 来源
    《Petrology》 |2017年第6期|共11页
  • 作者

    Smirnov S. Z.; Thomas V. G.; Kamenetsky V. S.; Kozmenko O. A.;

  • 作者单位

    Russian Acad Sci Sobolev Inst Geol &

    Mineral Siberian Branch Novosibirsk 630090 Russia;

    Russian Acad Sci Sobolev Inst Geol &

    Mineral Siberian Branch Novosibirsk 630090 Russia;

    Univ Tasmania ARC Ctr Excellence Ore Deposits Hobart Tas 7001 Australia;

    Russian Acad Sci Sobolev Inst Geol &

    Mineral Siberian Branch Novosibirsk 630090 Russia;

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  • 正文语种 eng
  • 中图分类 岩石学;
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