Did earth oceans form as basalt filled basins?

When the Earth was just a big ball of magma, the magma started cooling, while the Earth was cooling steam was created and, steam is a gas. Then the steam eventually turn to vapors and, those vapors...

Well the answers simple. God created the oceans and the whole Earth. No one knows when he did it, but he did it before any person stepped foot on the planet. 1 In the beginning God created the...

Yes, much of the sea floor is basalt.

It was about 4 billion years ago, that the Earths oceans formed

I belive that an ocean basin forms because of plates shifting underwater. I am not sure but i hope this helps