ヤンガードリアス
However, proponents of the hypothesis have responded, disputing the accusation of irreproducibility or replicating their findings. In 2013, a group from Harvard reported finding a layer of increased platinum composition exactly at the Younger Dryas onset in a Greenland ice core, followed in 2017 by a report that the Pt spike had been replicated at 11 continental Younger Dryas sites.