Today these volcanic rocks, known as the Drakensberg basalts, form the towering Drakensberg Mountains in the central and eastern parts of South Africa.
(these volcanic rocks; known; as the Drakensberg basalts) (these volcanic rocks, known as the Drakensberg basalts; form; the towering Drakensberg Mountains in the central and eastern parts of South Africa; T:Today)
these volcanic rocks these volcanic rocks, known as the Drakensberg basalts
known form
as the Drakensberg basalts
the towering Drakensberg Mountains in the central and eastern parts of South Africa T:Today