Figure 18.18
GEO-GRAPHIC: Inselbergs, Australia. (A) Kata Tjuta and Uluru were formed through differential erosion of sandstone. (B) Kata Tjuta (left) and Uluru (right) are about 30 km (18 mi) apart. They are composed of the same 600-million-year-old erosion-resistant arkose, a type of sandstone.(B. left: © Nigel Millett; right: Bildagentur-Online/McPhoto-Schultz/Science Photo Library/Science Source)