Studies of Neutron-Irradiated Fluid Inclusions by Laser- Microprobe, Noble-Gas Mass Spectrometry

这项研究涉及应用激光显微探针装置 分析单个矿物和流体释放的惰性气体 内含物。 一方面，从辐照的样品中释放出40 Ar/39 Ar， 样品将通过质谱分析，以日期变质 斯里兰卡拉卡麻粒岩中的矿物。 这项技术可能会 允许成分分区矿物的测年，因此， 形成不同的造岩成分。 此外该 该方法可用于分析从大气中释放的惰性气体， 单个流体包裹体。 具体而言，流体中的选定元素 包裹体可以通过中子转化为惰性年物质， 在分析之前进行辐照。 这些子气体可以被分析， 直接确定以推断中父元素的内容 个别的夹杂物。 这些信息将提供详细信息 关于液体的历史和来源

This research involves application of a laser-microprobe apparatus to analyze released noble gases from individual minerals and fluid inclusions. On the one hand released 40 Ar/39 Ar from irradiated samples will be analyzed via mass spectrometry to date metamorphic minerals in granulites from Sri Laaka. The technique potentially will allow dating of compositionally zoned minerals an, hence, timing of formation of different rock-forming components. In addition, the method can be applied to analysis of noble gases released from individual fluid inclusions. Specifically, selected elements in fluid inclusions can be converted to noble year species via neutron irradiation prior to analysis. These daughter gases can be analyzed to determine directly to infer contents of the parent elements in individual inclusions. Such information will provide details concerning the history and source of the fluids.