Study of Included Fluids, Fluid-Rock Interactions, and Fluid Evolution in the Continental Deep-Drilling Project (KTB), Bavarian Oberpfalz

巴伐利亚 Oberpfalz 大陆深钻项目 (KTB) 中包含的流体、流体-岩石相互作用和流体演化研究

• 批准号: 9116967
• 负责人: Jill Pasteris
• 金额: $ 25.46万
• 依托单位: Washington University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-01 至 1996-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9116967&HistoricalAwards=false
• 关键词: Study; Included; Fluids; Fluid; Rock

This is a three-year project to study included fluids, fluid- rock interactions, and fluid-transport processes associated with rocks of the Continental Deep-Drilling Program (KTB) in the Bavarian Oberpfalz region. The three specific aspects of the drilling project to be addressed are: 1) Characterization of volatile-bearing fluid inclusions (by quantitative laser Raman microspectroscopy and conventional microthermometry); 2) structural characterization and petrologic interpretation of graphite (by laser Raman microspectroscopy and petrographic analysis); and 3) investigation of the chemical evolution of the C-0-H-N fluids, which in come cases culminated in graphite precipitation. The principal investigator's research group is particularly suited to this project because of many previous and ongoing studies, including developing methodologies for: the quantitative Raman analysis of fluid inclusions in the C-O-H-N system; quantifying internal volatile pressures from Raman peak parameters in multi- component C-O-H-N gas/fluid mixtures; and characterizing graphite structures and their associated metamorphic grades from Raman spectral parameters. In addition, evaluations of fluid evolution will be aided by ongoing studies of stable and metastable equilibria in synthetic fluids in the C-O-H system, and by studies of fluid-rock interactions in parts of the Duluth mafic intrusive complex wherein both fluids and lithologies bear strong compositional similarities to those of the KTB.

这是一个为期三年的项目，研究内容包括巴伐利亚上普法尔茨地区大陆深钻计划 (KTB) 的流体、流体-岩石相互作用以及与岩石相关的流体传输过程。 该钻探项目要解决的三个具体方面是： 1）含挥发性流体包裹体的表征（通过定量激光拉曼显微光谱和传统显微测温）； 2）石墨的结构表征和岩石学解释（通过激光拉曼显微光谱和岩相分析）； 3) 研究 C-0-H-N 流体的化学演化，在某些情况下最终导致石墨沉淀。 首席研究员的研究小组特别适合该项目，因为之前和正在进行的许多研究，包括开发以下方法： C-O-H-N 系统中流体包裹体的定量拉曼分析；根据多组分 C-O-H-N 气体/流体混合物中的拉曼峰参数量化内部挥发压力；并根据拉曼光谱参数表征石墨结构及其相关的变质等级。 此外，对C-O-H系统中合成流体的稳定和亚稳平衡正在进行的研究，以及对德卢斯镁铁质侵入杂岩部分流体-岩石相互作用的研究，将有助于流体演化的评估，其中流体和岩性与KTB的流体和岩性具有很强的成分相似性。