The explanation may be in Earth's mantle, the layer of rock underlying the tectonic plates and extending down over 1,800 miles to the outer edge of Earth's ironcore.
解释可能是在地球的地幔中,这是在构造板块下面的岩石层,向下延伸超过1800英里到地球铁芯的外边缘。
2
Computer simulations of this impact show that both of the objects would melt in the impact and the dense core of the impactor would fall as molten rock into the liquefied ironcore of Earth.