Distribution, Forms, and Reactions of Major Biochemicals in Marine Environments

海洋环境中主要生化物质的分布、形态和反应

• 批准号: 9401903
• 负责人: John Hedges
• 金额: $ 82.91万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-04-15 至 1998-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9401903&HistoricalAwards=false
• 关键词: Distribution; Forms; Reactions; Major; Biochemicals

HEDGES 9401903 Processes affecting the preservation of organic matter and its major biochemical components in marine sediments will be studied with a continuing program which will: a) Develop a molecular-level technique for analysis of tannins and apply it in a study of the geochemistry of these polyphenols. b) Continue our recent studies on the physical forms or organic matter in marine sediments, emphasizing the effects of protective matrices on major biochemical distributions in organic-rich and deltaic deposits. c) Investigate the possible effects of slow oxic degradation on the preservation of organic matter and pollen in a marine turbidite and in continental margin sediments. The proposed tannin initiative is an extension of our efforts to develop and test analytical methods for major biochemicals that are promising geochemical tracers. The sediment fabric and oxic degradation studies represent a shift in emphasis away from case studies of biodegradation in specific plant tissues, toward field investigations of processes that may strongly affect the preservation of sedimentary organic materials on a global scale.

对冲9401903 影响海洋沉积物中有机物及其主要生物化学成分保存的过程将通过一个持续的方案进行研究，该方案将： a）、 开发分子水平的单宁分析技术 并将其应用于这些 多酚 B） 继续我们最近的研究，对物理形式或有机 海洋沉积物中的物质，强调 主要生化分布的保护矩阵 富含有机质和三角洲沉积。 c）、 调查缓慢好氧降解对 海洋生物中有机物和花粉的保存 浊积岩和大陆边缘沉积物。 提议的单宁倡议是我们努力开发和测试作为有前途的地球化学示踪剂的主要生物化学品的分析方法的延伸。 沉积物结构和好氧降解研究代表了重点从特定植物组织生物降解的案例研究转向可能强烈影响全球范围内沉积有机材料保存的过程的实地调查。