Thank you for the visit and for enjoying reading my post.
It is always nice to know that people enjoyed reading your post.
As for the dome, yes, that is what we call it, the Vredefort Dome. I am sending you a link to a website where you can read more about it. It is very interesting.
https://www.vdome.co.za/

South Africa is a country full of surprises. (•ิ‿•ิ)