Acquisition of a Heating/Freezing Stage, Microscope, and Video System for Fluid Inclusion Research

9709783 Dilles这笔赠款提供2万美元，作为购买加热/冷冻阶段以及用于研究流体包裹体物理和化学性质的显微镜和视频系统的部分费用。最近资助的一项研究计划（EAR-9614683）将依靠使用该仪器产生的数据来限制流体包裹体捕获压力，以增加同位素和岩石学数据，以解释热液流体成分的时间演化和随后的围岩蚀变，这些蚀变导致了蒙大拿Butte斑岩矿床的形成。此外，该系统还将与基性斑晶和捕虏体中流体包裹体所含原始氦的同位素分析相结合，以深入了解洋中脊和海洋热点玄武岩的岩石成因。其他将受益于该系统的项目包括，研究交代蒸发岩矿床中的流体包裹体，以及研究碎屑沉积岩中成岩石英过度生长中的流体包裹体。* * *

9709783 Dilles This grant provides $20,000 as partial support of the costs of acquiring a heating/freezing stage coupled with a microscope and video system for use in studies of the physical and chemical properties of fluid inclusions. A recently funded research proposal (EAR-9614683) will rely on data produced using this instrument to constrain fluid inclusion trapping pressures to augment isotopic and petrologic data in the interpretation of the temporal evolution of hydrothermal fluid compositions and subsequent wall rock alteration that led to the formation of the porphyry ore deposit at Butte, Montana. In addition, this system will be used in combination with isotopic analyses of primordial helium contained in fluid inclusions trapped in mafic phenocrysts and xenoliths to yield insight into the petrogenesis of mid-ocean ridge and oceanic hot spot basalts. Other projects that will benefit from this system include, studies of fluid inclusions in metasomatized evaporite deposits and studies of fluid inclusions trapped in diagenetic quartz overgrowths in clastic sedimentary rocks. ***