Supercritical CO₂ appearing as bubbles in hydrothermal vents was identified in the south part of the Okinawa Trough using in situ Raman spectroscopy. Significantly, the N₂ peak in supercritical CO₂ is much larger than those in seawater and vent fluids, indicating that supercritical CO₂ enriches N₂ from the surrounding environment. Considering that the partial pressures of CO₂ and N₂ in the Earth’s proto-atmosphere were ~10–20 MPa, supercritical CO₂ with high N₂ was likely the dominant CO₂ phase near the water-air interface in the early history of the Earth, which promoted the synthesis, pre-enrichment and preservation of amino acids and other organic matters that are essential to the origin of life.

使用原位拉曼光谱法在冲绳海槽的南部发现了在热液喷口中以气泡形式出现的超临界CO ₂。显著中，N ₂在超临界CO峰₂是比在海水大得多和泄流体，表明超临界二氧化碳₂的丰富Ñ ₂从周围环境中。考虑到地球原始大气中CO ₂和N ₂的分压为〜10–20 MPa，N ₂高的超临界CO ₂可能是主要的CO ₂ 在地球的早期历史中，水-空气界面附近有一个阶段，促进了生命起源必不可少的氨基酸和其他有机物质的合成，预富集和保存。