A Petrologic and Geochemical Study of Fluid Flow, Diagenesisand Deformation in the Frontal Region of the Cascadia Accretionary Wedge

卡斯卡迪亚增生楔前缘区流体流动、成岩作用和变形的岩石学和地球化学研究

• 批准号: 9022115
• 负责人: Mark Barton
• 金额: $ 1.02万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-09-01 至 1993-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9022115&HistoricalAwards=false
• 关键词: Petrologic; Geochemical; Study; Fluid; Flow

Understanding the role of circulating fluids in controlling sedimentary properties along convergent margins has become a high priority research objective in the marine geosciences. In a number of areas the discharging fluid can be sampled directly and inferences made about the depth of circulation, interaction with surrounding sediments, and degree of modification of sedimentary physical parameters. Sampling of sea-floor sediments and subsequent analysis can allow the history of circulation systems to be examined. This award will support an examination of the petrography and geochemistry of carbonate sediments that have been deposited by circulating fluids along the Oregon margin. Samples will be recovered by submersible in September of 1990. Samples will be analyzed for their major element chemistry and isotope composition.

了解循环流体在控制汇聚边缘沉积特性中的作用已成为海洋地球科学的一个高度优先的研究目标。 在许多地区，可以直接对排出流体进行采样，并对循环深度、与周围沉积物的相互作用以及沉积物物理参数的改变程度做出推断。 海底沉积物采样和随后的分析可以检查循环系统的历史。 该奖项将支持对俄勒冈州边缘循环流体沉积的碳酸盐沉积物的岩相学和地球化学研究。 样品将于 1990 年 9 月通过潜水器回收。样品将进行主要元素化学和同位素组成分析。