Hydrothermal Fluids at the Mid-Atlantic Ridge (15°N and 4-11°S) as Media for the Transport of Energy and Mass from the Crust into the Hydro- and Biosphere

大西洋中脊（北纬 15°和南纬 4-11°）的热液作为能量和质量从地壳传输到水文圈和生物圈的媒介

• 批准号: 5417497
• 负责人: Dr. Carl-Dieter Garbe-Schönberg
• 金额: --
• 依托单位: Hamburger Sternwarte
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2003
• 资助国家: 德国
• 起止时间: 2002-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5417497?language=en
• 关键词: Hydrothermal; Fluids; Mid; Atlantic; Ridge

Within the evaluation project of research cruise M60/3 with R/V Meteor (15.01.-13.02.04), the hydrothermalism at 15°N of the Mid-Atlantic Ridge and its interrelation with the geological and biological environment will be investigated in three hydrothermally active areas. Part of the work will deal with the dependancy of the fluid and mineral composition of the tectonic activity and the type of basement rock (basalt, peridotite). Another main focus will be put on geo-bio interfaces and the investigation of chemical species (especially sulfur species and redox speciation and complexation of metals) in the fluids, which is vital for the organisms living in and from the fluids. Furthermore, boiling and phase separation in the fluids and its consequences for mineral formation and the associated ecosystems will be investigated. The main target area is the Logatchev field at 14.45°N where a large variety of emanating fluids, mineral precipitates and biotopes is known to exist.

在R/V Meteor（15.01.-13.02.04）的研究巡航评估项目中，将在三个水热活动区中研究中大西洋山脊的水热及其与地质和生物环境的相互关系。一部分工作将处理构造活性的流体和矿物质组成的依赖性以及地下岩石的类型（玄武岩，橄榄岩）。另一个主要重点将放在地理生物界面和笛子中化学物种（尤其是硫磺种类和金属的氧化还原规格和络合物）的投资，这对于生活在笛子中和笛子中至关重要。此外，将研究笛子的沸腾和相位分离及其对矿物形成和相关生态系统的后果。主要的目标区域是14.45°N的Logatchev场，其中已知存在各种散发性笛子，矿物沉淀物和生物植物。