Sometime around 85 million years ago, a volcanic plume from deep within the Earth's molten mantle layer managed to extend from the Earth's mantle and through the crust and into the bottom of the Pacific Ocean.
大约在 8500 万年前的某个时候,来自地球熔融地幔层深处的火山羽流成功地从地幔中延伸出来,穿过地壳,进入太平洋底部。