Sometimes, I feel like only replying in broad strokes... then I see all the wrong in your replies.... and I have to go at it one by one...
TLDR... or not.
Well, Stat, I have to thank you. Thanks for making me research on about these things and learning the state of the art in the scientific knowledge of these fields... even so, what I've learned is very lacking, compared to all that's been done by scientists... but I have a rough idea of how the solar system came into being, then the Earth-moon system... and a good deal more solid notion on radiometric dating mechanisms.
As it stands.... circa 5 *10^9 years ago, our sun ignited. Materials from the nebula where it ignited orbited around it and gathered in to clumps, then into proto-planets. At some point, more than 4.5*10^9 years ago, the 3rd and 4th proto-planets collided and resulted in a larger proto-planet, the Earth, and a smaller one orbiting it, the moon. At this moment, the rotation speed of the whole system was fast, each day taking about 2 hours. Then both proto-planets cooled off from their magma state and this is when the radioisotopes froze into place. The moon cooled quicker so it has no discernible magma, at the moment. The Earth is still cooling, but clearly the surface has cooled enough.
In the beginning, the water at the surface of the earth froze, because the internal heat from the planet wasn't reaching the surface and the heat from the sun was about 70% of what it is now, not letting the planet's surface reach a temperature high enough for water to be in liquid state.
However, there were a few conduits from the core to the surface, which, in contact with this ice, melted it and produced the required soup, as well as temperature to form proteins, later amino-acids, and later yet, life.
TLDR... or not.
Well, Stat, I have to thank you. Thanks for making me research on about these things and learning the state of the art in the scientific knowledge of these fields... even so, what I've learned is very lacking, compared to all that's been done by scientists... but I have a rough idea of how the solar system came into being, then the Earth-moon system... and a good deal more solid notion on radiometric dating mechanisms.
As it stands.... circa 5 *10^9 years ago, our sun ignited. Materials from the nebula where it ignited orbited around it and gathered in to clumps, then into proto-planets. At some point, more than 4.5*10^9 years ago, the 3rd and 4th proto-planets collided and resulted in a larger proto-planet, the Earth, and a smaller one orbiting it, the moon. At this moment, the rotation speed of the whole system was fast, each day taking about 2 hours. Then both proto-planets cooled off from their magma state and this is when the radioisotopes froze into place. The moon cooled quicker so it has no discernible magma, at the moment. The Earth is still cooling, but clearly the surface has cooled enough.
In the beginning, the water at the surface of the earth froze, because the internal heat from the planet wasn't reaching the surface and the heat from the sun was about 70% of what it is now, not letting the planet's surface reach a temperature high enough for water to be in liquid state.
However, there were a few conduits from the core to the surface, which, in contact with this ice, melted it and produced the required soup, as well as temperature to form proteins, later amino-acids, and later yet, life.