Plates Boundaries. At the locations where two tectonic plates interact, a boundary between these plates exist. There are three types of boundaries that geologist observe. These boundaries are divergent boundaries, convergent boundaries, and transform boundaries.
Great Sandy Desert (Western Australia): 284,993 km2 (110,036 square miles). Tanami Desert (Western Australia and Northern Territory): 184,500 km2 (71,235 square miles). Each of these deserts is either in or primarily in Western Australia, in the western third of the continent.
The Great Victoria Desert is the largest desert region in Australia and the third largest desert in the world. It covers over 160,000 square miles in the south-central portion of the country. In spite of very low annual rainfall amounts, a large number of plant species exist here.