Chemical and Heat Fluxes from Loihi Seamount

Loihi Seamount 的化学和热通量

• 批准号: 9314394
• 负责人: Francis Sansone
• 金额: $ 18万
• 依托单位: University of Hawaii
• 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: 1994-08-15 至 1998-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9314394&HistoricalAwards=false
• 关键词: Chemical; Heat; Fluxes; Loihi; Seamount

9314394 Sansone Previous studies on Loihi seamount found low-temperature hydrothermal vents with bacterial communities. These vents are very different from those found in ridge-axis environments in by virtue of being highly gas-charged with high volatile/heat ratios; and high 3He and CH4 plumes have been found as well. Thus, Loihi seems to have an end-member hydrothermal system this quite different from the ridge-axis systems. In this project, the PIs will go back to Loihi and dive with Pisces V fitted with the new and improved gas sampler and obtain an accurate sampling of the volatile phases that are pouring out of these low-T vents. They will analyze the gases, particles, and ions that are being brought out by the vents into the sea water. Their main goal is to characterize the thermal, chemical, and particle fluxes at these vents.

小行星9314394 以前对Loihi海山的研究发现了具有细菌群落的低温热液喷口。这些喷口与在脊轴环境中发现的喷口有很大不同，因为它们充满了高挥发/热比的气体;还发现了高的3He和CH4羽流。因此，Loihi似乎有一个端员热液系统，这与脊轴系统完全不同。在这个项目中，PI将回到Loihi，并与Pisces V一起潜水，该Pisces V配备了新的和改进的气体采样器，并获得从这些低T喷口涌出的挥发相的准确采样。他们将分析由喷口带入海水的气体、颗粒和离子。他们的主要目标是确定这些喷口的热通量、化学通量和颗粒通量的特征。