Siderophile-enriched sediments from the Cretaceous–Tertiary boundary
Siderophile-enriched sediments from the Cretaceous–Tertiary boundary
复制标题
白垩纪-第三纪边界的富铁质沉积物
作者：
F. Kyte;Zhiming Zhou;J. Wasson
亲铁元素浓度高的沉积物中从第三纪的边界。一个外星人的来源。浓度太高，以至于无法理解南极小行星的影响。要么抛射体是金属硫化物核心，要么是在大气通过过程中被减速的永不衰竭的物质（可能是微弱的彗星物质）。
Siderophilic element concentrations are high in sediments from the Cretaceous–Tertiary boundary. An extraterrestrial source is indicated. Concentrations are too high to be understood in terms of the impact of a chondritic asteroid. Either the projectile was a metal-sulphide core or the infailing material (probably weak cometary matter) was slowed down during atmospheric passage.