撞击所释放的强烈高温会在许多类型的岩石中形成一种热冲击石英。
The intense heat of the impact would produce heat-shocked quartz in many types of rock.
一种可能的解释是顶层的岩石是陨石撞击的冲击波形成的。
One possibility is that the top layer of rock was shattered by the shockwaves from an impact.
然而，查特基博士的说法引发了疑问：为什么全球白垩纪晚期岩石中含有冲击石英和铱的喷发物地层只有一层？ 答案或许是，两次撞击是在同时发生的。
This story, though, raises the question of why there is but a single ejecta layer of iridium and shocked quartz in late Cretaceous rocks around the world.
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