Complex sentence: The Massive Australian Precambrian/Cambrian Impact Structure also known as MAPCIS is a proposed impact structure with is center located approximately equidistant between Uluru/Ayers Rock and Mount Conner in Australias' Northern Territory.
Split into simpler sentences: The Massive Australian Precambrian/Cambrian Impact Structure also known as MAPCIS is a proposed impact structure. Its center located approximately equidistant between Uluru/Ayers Rock and Mount Conner in Australias' Northern Territory.