wow amazing thanks for that zoom out pic
Zooming out further is pure speculation but most likely something like :
The only possible "connection" (if any) under the ocean as the icy dome will just merge with the ground ice.
Just imagine a frog in a pond or as the bible calls it;
Isaiah 40:22
It is He who sits above the circle of the earth, And its inhabitants are like grasshoppers, Who stretches out the heavens like a curtain And spreads them out like a tent to dwell in.
Gen 1:6 And God said,
"Let there be a vaulted dome in the midst of the waters, and {let it cause a separation between the waters}."
Gen 1:7
So God made the vaulted dome, and he caused a separation between the waters which [were] under the vaulted dome and between the waters which were over the vaulted dome. And it was so
.