Assertion: terrestrial planet's structure | /r/Desires | cooling
Facets:
value: over very long periods of time
type: TEMPORAL
value: in excess of a million years
type: TEMPORAL
Source sentences:
text: The structures observed in iron meteorites are easily visible to the eye, and require cooling over very long periods of time, probably in excess of a million years; and the only way we can imagine this happening is if a fairly large body (hundreds of miles in diameter) melted, allowing heavy stuff to sink to the middle and light stuff to float to the top, then cooled and solidified.