Collaborative Research: Development of Numerical Models Linking Fluid Geochemistry and Biological Communities in Mid-Ocean Ridge Hydrothermal Environments

合作研究：建立连接大洋中脊热液环境中流体地球化学和生物群落的数值模型

基本信息

批准号：
0937337
负责人：
Jan Amend
金额：
$ 15.05万
依托单位：
Washington University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2009
资助国家：
美国
起止时间：
2009-09-01 至 2012-04-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0937337&HistoricalAwards=false
关键词：
Collaborative Research Development Numerical Models

项目摘要

This research is novel in that its creates a first-of-a-kind model that accounts for the effects of fluid transport and microbial metabolic processes in fluid mixing environments at seafloor hydrothermal vent systems. Hydrothermal vents are some of the most interesting and important extreme environments on the planet and the microbes that inhabit them are potential targets for new compounds for natural products studies from which new and important pharmaceuticals might be derived. This project links together for the first time, the chemosynthetic hydrothermal vent biological communities and the geologic/geochemical processes taking place in the subsurface. The resulting mathematical and computational models portray chemical environments that account for the impact of microbial metabolism on evolving fluid chemistry during the mixing of seawater and hydrothermal fluid and could be used to direct bioprospecting. Models will be constrained by reported compositions of high-temperature, focused and low-temperature diffusively venting fluids as well as microbial distribution in seafloor hydrothermal environments collected during the RIDGE 2000 program. The broader impacts of the work include creating modeling codes for reactive transport modeling which explicitly include reactions mitigated by microbes, student training, and the development of a workshop on modeling bioenergetic reactions.

这项研究是新颖的，因为它创建了一种首个模型，该模型解释了在海底水热系统上流体混合环境中流体转运和微生物代谢过程的影响。水热通风孔是地球上最有趣，最重要的极端环境，而居住在它们的微生物是天然产品研究的新化合物的潜在靶标，可以从中衍生出新的和重要的药物。该项目首次将化学合成水热生物群落和地质/地球化学过程链接在一起。由此产生的数学和计算模型描绘了化学环境，这些化学环境解释了微生物代谢对海水和水热液混合过程中不断发展的液体化学反应的影响，并且可用于指导生物培训。模型将受到报告的高温，聚焦和低温扩散流体的组成以及在Ridge 2000计划期间收集的海底热液环境中的微生物分布。这项工作的更广泛的影响包括为反应性传输建模创建建模代码，其中包括微生物减轻的反应，学生培训以及开发有关对生物能反应建模的研讨会。