I was reading Does gold come from outer space?(BBC News). If the majority of gold on Earths surface does come from space would it tend to be equally distributed on comets and asteroids, or would tend to collect in pockets?
As I understand it, for the most part it seems that nuggets and pockets of gold on Earth tend to develop from erosion factors, it seems unlikely that these same effects would be present in Space, and that any catastrophic event (i.e. planetary destruction) would tend to disrupt any existing high density areas of gold.
Is there any known process that would tend to create high density grouping of gold elements in space?