Chemical Analysis of Oceanic Hydrothermal Fluid Inclusions in Quartz

该项目的目标是直接对来自大洋岩石的石英脉中的流体包裹体进行化学分析。现有岩石上特征良好、均一的流体包裹体群体将通过原子吸收分光光度法进行常规的粉碎/浸出分析。然后，可以将这些数据与从活动温泉中采集的热液端元进行比较。流体包裹体研究提供了有关热液系统温度和流体盐度的重要信息。以前没有人试图直接确定包裹体中流体的化学成分，这种信息对于完整地描述热液系统是很重要的。能够将化石系统中包裹体中的流体成分与目前活跃的海底系统的成分进行比较，这将是非常有用的。在这个项目中将获得的数据可能会有新的突破。

The objective of this project is to directly chemically analyze fluid inclusions from quartz veins from oceanic rocks. Well-characterized, homogeneous fluid inclusion populations on rocks already in hand will be analyzed by conventional crush/ leach analysis using atomic absorption spectrophotometry. This data can then be compared to hydrothermal end members sampled from active hot springs. %%% Fluid inclusion studies provide important information about the temperature of hydrothermal systems and about the salinity of the fluid. There has been no previous attempt to determine directly the chemical composition of the fluid trapped in the inclusion and such information is important to a complete characterization of the hydrothermal system. It would be extremely useful to be able to compare fluid compositions in inclusions in fossil systems with compositions of presently active seafloor systems. The data to be obtained in this project could break new ground.