In fact, the core can be further divided into two spherical layers, the solid inner core of one thousand eighty kilometer in diameter and the liquid outercore of five thousand one hundred and sixty kilometers in thickness.

• 实际上地球的核还可进一步划分出两个圈层，一个是固态的内核，直径为1780公里。另一个圈层是液状的外核，其厚度为5160公里。