OK but here is a theory.
Ball of " " flies through space, cooling.
surface solidifies (evenly?)
ice top & bottom, slowly thaws, creates oceans.
What put the f'n great gash in the land masses? to creat Atlantic & pacific 'trenches" ?
Could it be that a big hunk of moon fell off, hit earth , putting couple of great dents in crust?
and now moon is like ball on end of string (gravity) because moon mass cog is offset?
What covered the sahara tropics with heaps sand?
This sh!t keeps me awake at night, while I await simple things to de-code, aka a q post :-0