But that date has been overthrown by work employing cosmogenic nuclide dating.

但该日期已被采用宇宙成因素测年的工作推翻。

To test that idea, they directly dated the cave breccias in Members 2 and 4 using cosmogenic nuclide dating, which Dr Granger helped develop.

验证这个想法，他们使用格兰杰博士帮助开发的宇宙成因素测年法，直接对成员 2 和成员 4 中的洞穴角砾岩进行测年。

A sophisticated dating technique, called cosmogenic nuclide dating, has upended previous estimates—and, with that, is rewriting an important chapter in the story of human evolution.

一种称宇宙成因素测年的复杂测年技术推翻之前的估计，并由此改写类进化史的重要篇章。

When a breccia-forming object falls into a cave, it finds itself shielded from cosmic rays, and the steady decay of its existing cosmogenic nuclides can be used to determine how long ago it fell in.

当形成角砾岩的物体落入洞穴时， 它发现自己免受宇宙射线的影响， 并且其现有的宇宙成因素的稳定衰变可以用来确定它落入洞穴的时间。