Collaborative: Investigation of a new class of hydrothermal systems: The Lost City Hydrothermal Field: A Peridotite-hosted, Off-axis System at 30 degree N on the Mid-Atlantic Ridge

合作：调查一类新型热液系统：失落之城热液场：位于大西洋中脊北纬 30 度的橄榄岩离轴系统

• 批准号: 0137206
• 负责人: Deborah Kelley
• 金额: --
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-03-01 至 2010-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0137206&HistoricalAwards=false
• 关键词: Collaborative; Investigation; new; class; hydrothermal

This is an investigation of the recently discovered Lost City Vent Field, atop the dome-like Atlantis Massif at 30 degrees north on the Mid-Atlantic Ridge. This field is different from all other known seafloor hydrothermal fields in that it is located on 1.5 Ma crust, is dominated by steep-sided carbonate chimneys, and is underlain by significiant exposures of serpentinized peridotite. A detailed mapping and sampling program will be conducted to address the following: the tectonic and geologic controls that focus venting, the chemical and isotopic compositions of the vent structures and fluids, the indicence and phylogentic diversity of microorganisms, and whether macrofauna exist.

这是对最近发现的丢失的城市通风田的调查，该场位于中大西洋山脊北30度的圆顶式亚特兰蒂斯地块上。 该田地与所有其他已知的海底热液场不同，因为它位于1.5 mA地壳上，由陡峭的碳酸盐嵌合体主导，并由蛇形橄榄岩的显着暴露。 将进行详细的映射和抽样程序，以解决以下内容：集中排气的构造和地质控制，通风孔结构和流体的化学和同位素组成，微生物的指示和系统多样性以及是否存在macrofauna。