Geologist EXPLANATION
Kata Tjuta was created very much the same as Uluru, with the sediments compacting together to create a land mass, the landmass was then effected by both chemical and physical weathering, there by creating the bumps in the rock, which we now know as either the Kata Tjuta or The Olgars.
aboriginal EXPLANATION
Just like Uluru, Kata Tjuta was created by the passing of the ancestors of the aboriginal dreamtime. The land forms were made of their bodies.