Fluid Inclusion Studies in the Hydrothermal Diamond Anvil Cell

热液金刚石砧池中的流体包裹体研究

• 批准号: 9725248
• 负责人: Robert Bodnar
• 金额: $ 13.04万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-01-01 至 2000-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9725248&HistoricalAwards=false
• 关键词: Fluid; Inclusion; Studies; Hydrothermal; Diamond

9725248 Bodnar The objective of the proposed research is to develop the hydrothermal diamond anvil cell (HDAC) for use as a pressurized fluid inclusion stage. The HDAC will then be used in conjunction with the synthetic fluid inclusion technique to obtain PVTX data for geologically-important system H2O-CO2 NaCl at temperatures and pressures beyond the range accessible with conventional experimental techniques normally used to determine PVTX properties of fluids. Results of a pilot study document the feasibility of using the HDAC as a pressurized fluid inclusion stage to prevent non-elastic volume changes for such inclusion by heating the gas salt-bearing inclusions under a high hydrostatic confining pressure in the HDAC. In this study, the HDAC will be used as a pressurized fluid inclusion stage to determine the P-T location of the H2O-CO2solvus and the slopes of isochores at pressures up to approximately 7-9 kbar. The research will also result in the development of a protocol for the most efficient use of the HDAC as a pressurized fluid inclusion stage for the study of natural fluid inclusions that currently cannot be studied in the conventional one-atmosphere heating stage.

9725248 Bodnar 拟议研究的目的是开发用作加压流体包裹体阶段的热液金刚石砧室（HDAC）。然后，HDAC 将与合成流体包裹体技术结合使用，以获得具有地质重要意义的系统 H2O-CO2 NaCl 的 PVTX 数据，其温度和压力超出了通常用于确定流体 PVTX 特性的传统实验技术所能达到的范围。一项试点研究的结果证明了使用 HDAC 作为加压流体包裹体阶段的可行性，通过在 HDAC 中的高静水围压下加热含气盐包裹体来防止此类包裹体发生非弹性体积变化。在本研究中，HDAC 将用作加压流体包裹体阶段，以确定 H2O-CO2 溶解线的 P-T 位置以及压力高达约 7-9 kbar 时等容线的斜率。该研究还将开发一种协议，以最有效地使用 HDAC 作为加压流体包裹体阶段，以研究目前无法在传统的单气氛加热阶段中研究的天然流体包裹体。