1220 km in radius
2250 km thick
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The border between the outer core and inner core is approximately 2,900 kilometers below the Earth's surface.
The border between the inner core and the outer core is approximately 5,150 kilometers below the Earth's surface.
The outer core of the Earth is about 2,200 kilometers thick, while the inner core is approximately 1,200 kilometers thick. The outer core is composed of molten iron and nickel, while the inner core is solid due to high pressure.
The Earth's outer core is thicker than the mantle. The outer core is about 2,260 kilometers thick, while the mantle is approximately 2,900 kilometers thick.
The outer core is approximately four times thicker than the inner core. The outer core is about 2,300 kilometers thick, while the inner core is about 1,200 kilometers thick.