由于普遍缺少大于40亿年的岩石记录,赋存在太古宙变质沉积岩中的冥古宙碎屑锆石构成了探索地球初期地壳演化及其动力学机制的唯一直接证据。因此,较好地限制冥古宙碎屑锆石的来源和历史也就成为探索这一问题的关键。爱尔兰学者Kenny博士及其合作者以前人研究比较详细的分异的萨德 Due to the general lack of rock records of more than 4 billion years, the Mesozoic detrital zircons deposited in Archean metasedimentary rocks constitute the only direct evidence to explore the evolution of the Earth’s crust and its dynamics. Therefore, the key to exploring this issue is to better restrict the origin and history of the ancient Cosmic detrital zircon. Kenny, an Irish scholar, and his collaborators used to study Saad, a more detailed divergence