How does uranium from supernovae explosions end up in mineral veins in a planet? The reply to a question about nucleosynthesis, that heavier than iron elements are produced in supernovae explosions, raised for me the following question which I could not answer by googling. Partially because the search for planets and stars brings out astrology answers!
Explosions are dispersive, nevertheless we find minerals in clumps, not only uniformly dispersed in the ground. Is there a coherent presentation that explains how minerals end up in veins and bands?
 A: Mostly because they are heavy.
Rocks erode putting their constituents into solution, the heavy stuff settles out in river/sea beds, and metals are heavy.
For many metals hydrothermal process are more important. Super hot water deep in the earth  dissolves the rock containing the minerals, it moves along cracks in the rock and cools depositing the salt and metals as lines in the rock.
In an asteroid with no geological process the metals are found in their raw state having cooled directly from the original ball of primeval gas
A: p.s. I have found a  course notes precis  and it  seems there are several models proposed. 
Completely out of my depth, I would propose that if matter above Fe in the binding energy curve were in a concentration within a "protoplanet" with a high enough pressure, it could form a quark gluon plasma, and then all type of nuclei could precipitate/crystalize as conditions change, according to their quantum mechanical state function, so a supernova explosion might be sufficient to make uranium, but not necessary. This would explain clumping and veins.
A: Almost all the various "metals" (like primitive tribes that count "1, 2 many", the astronomers describe the elements as "hydrogen, helium, metals")  in the earth come from supernovae explosions. So the uranium got there pretty much the same way that the silicon, iron, oxygen, potassium, etc.
