This story is fresh off the press:
All the Gold of the Universe Could Come from Collisions of Neutron Stars
“This question of where elements like gold come from has been around for a long time,” Berger says. Though many scientists had long argued that supernova explosions were the source, he says his team—which includes Wen-fai Fong and Ryan Chornock of the Harvard astronomy department—have evidence that supernovas aren’t necessary. These neutron star collisions produce all elements heavier than iron, he says, “and they do it efficiently enough that they can account for all the gold that's been produced in the universe.”
This is more like it! I know people who, using good reason, have had this concept for years. My fried Wolynski came up with a version of this concept before these Einsteins discovered it.
This comes as no surprise to me. There are not enough observed supernovae, so as to use them as a rational basis for the synthesis of the heavy elements. So hopefully this will lead these scientists down a more sound track. I still think they are way off with their concepts but this is a start.
So I think Earth began as a star much larger than the Sun. It did not fuse its heavier elements beyond iron and nickel. It rather 'sucked' them in as it migrated around the galaxy. During its migration it assimilated elements such as gold, platinum, lead, etc. in the mines of space. When it stopped fusing and shed its outer layers in a series of novae it may have even assimilated some of its water supply from the debris of newer stars, like the example of the stray planet in TW Hydrae (see my blog).
It transformed into a dark star (black dwarf) with a water supply somewhat like the moons Titan or Ganymede. It wandered around until God transfigured it and placed it in orbit around a new light: our Sun.