【中国新闻网】黄金在自然界如何形成？中国科学家首次揭示纳米尺度动态过程

Core Viewpoint - Recent research reveals a new mechanism for gold formation at the nanoscale, providing insights into the dynamic process of gold nanoparticle formation on pyrite surfaces, which could reshape understanding of gold deposit formation [4][5][7] Group 1: Research Findings - The study utilized in-situ liquid-phase transmission electron microscopy to observe the formation of gold nanoparticles in a low-concentration gold solution (10 parts per billion) in real-time, marking a significant advancement in mineral interface science [4][5] - A "dense liquid layer" was identified at the pyrite-water interface, acting as a "nanoscale factory" that facilitates the nucleation and growth of gold, even in extremely low concentrations [5][6] - The research challenges the traditional theory that gold primarily originates from deep hydrothermal fluids, expanding the understanding of mineralization mechanisms [6][7] Group 2: Implications and Applications - The findings have implications for both hydrothermal gold deposits and surface gold enrichment processes, suggesting that the "nanoscale factory" mechanism can drive gold migration and precipitation in various geological settings [6][7] - From an application perspective, the research provides important guidance for interface control in green gold extraction processes, potentially leading to more sustainable mining practices [7]