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英格兰西南部花岗岩石英中的流体包裹体记录了该重要成矿区的复杂而且漫长的热液活动史。依据不同类型包裹体的区域变化,能够作为“侵入体之间”—母岩花岗岩的结构及其矿化范围的判别标志。这种变化亦可以作为一种“花岗岩内部”矿化强弱的标志,尤其是矿化区以有较高的总体包裹体丰度为特征,而在已知弱矿化或无矿化的地区则相反。和Sn-W-Cu成矿最密切的是不含石盐子矿物,具中等温度的包裹体。室温下具液态CO_2的包裹体仅见于英格兰西南部的两个局部地段。这两个地段均产出网脉状和脉群状钨矿床。这种区域性“流体包裹体异常”表明,用一架简单的偏光显微镜进行流体包裹体岩相学研完的方法可用于野外找矿工作。
Fluid inclusions in granitic quartz in southwestern England document the complex and long history of hydrothermal activity in this important metallogenic region. Based on the regional variation of different types of inclusions, it can be used as a discriminant mark between “intrusive” - granite structure and its mineralized range. This change may also serve as a hallmark of the “granite internal” mineralization, especially in the mineralized areas characterized by higher abundances of total inclusions, whereas in areas known to be poorly mineralized or mineralized The opposite. The most closely related to the Sn-W-Cu mineralization is the inclusion of a rock salt-free mineral with medium temperature inclusions. Inclusions with liquid CO 2 at room temperature are found only in two parts of southwestern England. Both sites produce reticular and pulse group tungsten deposits. This regional “fluid inclusions anomaly” shows that the method of petrographic completion of fluid inclusions using a simple polarizing microscope can be used for field prospecting.