The Fluid Geochemistry of Ridge Subduction-Chile Triple Junction (ODP Leg 141)

山脊俯冲-智利三重交界处的流体地球化学（ODP Leg 141）

• 批准号: 9616407
• 负责人: Philip Froelich
• 金额: $ 9.7万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-11-01 至 1998-10-15
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9616407&HistoricalAwards=false
• 关键词: Fluid; Geochemistry; Ridge; Subduction; Chile

This award will support the final year of a project to establish the fluid and mineral mechanisms, fluid circulation pathways and time scales responsible for the formation of authigenic minerals formed at the Chile Triple Junction. Hydrothermal pulses from the buried ridge system have produced a series of mineral facies, which will be analyzed with Li, B and O isotopes in addition to a range of other analyses already accomplished. A hydrogeochemical model will be constructed using local tectonic and kinematic constraints, in order to estimate fluid and geochemical fluxes associated with ridge subduction.

该奖项将支持一个项目的最后一年，该项目旨在建立在智利三大交界处形成自生矿物的流体和矿物机制、流体循环途径和时间尺度。来自埋藏山脊系统的热液脉冲产生了一系列矿物相，除了已经完成的一系列其他分析外，还将用Li、B和O同位素进行分析。将利用当地的构造和运动学约束建立一个水文地球化学模型，以估计与海脊俯冲有关的流体和地球化学通量。