Diagenetic Phases Transformations Affecting Sediment Porosity: A TEM Investigation

影响沉积物孔隙度的成岩相转变：TEM 研究

• 批准号: 8816577
• 负责人: Hans-Rudolf Wenk
• 金额: $ 9万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-01-01 至 1991-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8816577&HistoricalAwards=false
• 关键词: Diagenetic; Phases; Transformations; Affecting; Sediment

The objective of this research is to investigate the ways fluids interact with solids. In nature, fluid-solid interactions are exemplified in the precipitation/dissolution reactions that create porosity changes during sedimentary diagenesis. Such porosity changes not only alter the geophysical properties of the sedimentary rock, but control the migration and site accumulation of hydrocarbons. Specifically, in order to ascertain the role of crystal imperfections on the fluid transportation within a solid, electron microscopy studies (CTEM, HREM, and AEM) will be conducted on plagioclase grains whose cores have been replaced by nearly pure albite, on quartz that has been overgrown, and on cemented carbonate. In addition, the application of electron crystallography to mineralogy will be explored.

这项研究的目的是调查液体 与固体相互作用。 在自然界中，流体-固体相互作用是 例如沉淀/溶解反应， 在沉积成岩作用期间造成孔隙度变化。 等 孔隙度的变化不仅改变了岩石的地球物理性质， 沉积岩，但控制迁移和场地堆积 碳氢化合物。 具体来说，为了确定 晶体缺陷对固体内流体输送的影响， 电子显微镜研究（CTEM，HREM和AEM）将在 在斜长石颗粒上进行，其核心被 几乎纯的钠长石，在石英上生长过度， 胶结碳酸盐 此外，电子的应用 将探索晶体学到矿物学。