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

这是对最近发现的失落的城市喷口场地的调查，它位于大西洋中部山脊北纬30度的圆顶状的亚特兰蒂斯山丘上。与已知的所有海底热液气田不同的是，该气田位于1.5 Ma的地壳上，以陡峭的碳酸盐烟囱为主，并有明显的蛇纹岩橄榄岩出露。将进行详细的绘图和采样计划，以解决以下问题：重点关注喷口的构造和地质控制，喷口结构和流体的化学和同位素组成，微生物的指示和植物多样性，以及是否存在大型动物。

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.