A Source-to-Sink Study of Chemical Weathering in the Fly River System

弗莱河系统化学风化的从源到汇的研究

• 批准号: 0549037
• 负责人: Andrew Kurtz
• 金额: --
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-03-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0549037&HistoricalAwards=false
• 关键词: Source; Sink; Study; Chemical; Weathering

Kurtz 0549037The P.I. will test the hypothesis that the solute flux of the Fly River is dominated by the rapidly eroding uplands, while weathering in the lowland floodplain contributes additional alkalinity and dominates the flux of pedogenic clay minerals and metal-oxides to the Gulf of Paria. The PI will carry out analysis of soil cores, suspended sediments, and solutes at a number of locations through the river system. The suite of tools proposed is major element analysis, Sr and Nd isotopes, Ge/Si of stream waters and soil samples, and quantitative mineralogy of suspended sediments and soils. The project will provide insight in the chemical weathering processes occurring along the river system within the source to sink context.In terms of broader impact, this work is part of a larger effort dedicated to understanding the global environment, which is important for society. It will also contribute to the education/training of students and will lead to collaboration between scientists from the US and Papua New Guinea.

Kurtz 0549037 P.I.将检验以下假设：飞河的溶质通量主要由迅速侵蚀的高地侵蚀，而在低地洪泛区的风化则贡献了额外的碱度，并主导了Pedogenic粘土矿物质和金属氧化物的通量，这对Paria湾的鸿沟。 PI将在许多位置通过河流系统进行土壤芯，悬浮沉积物和溶质的分析。提出的工具套件是主要元素分析，SR和ND同位素，溪流水和土壤样品的GE/SI，以及悬浮沉积物和土壤的定量矿物学。该项目将提供有关沿河流系统沿河流系统的化学风化过程的见识。就更大的影响而言，这项工作是致力于理解全球环境的更大努力的一部分，这对社会很重要。它还将为学生的教育/培训做出贡献，并将导致美国科学家与巴布亚新几内亚之间的合作。