The Nullarbor plain in the central-southern part of Australia is one of the driest regions on Earth. It is called the Ceduna Delta. The Murray-Darling further to the east is the largest river system extant today. It is difficult to accept that the Nullarbor was created by many small rivers flowing southward into the ocean. These rivers flowed very fast cutting through hills which were formed by the land rising between Australia and Antarctica. Ultimately, sediment was deposited in the drying riverbeds. Analysis of sediment from drillings in the delta showed rivers flowed there 80 million years ago. Sources of gas and oil have been identified which could be tapped in the future. The Ceduna Delta is as large as the Niger Delta in Africa. It contains half a million cubic kilometers of sedimentary sandstome and shales. Hydrocarbon reserves are already being exploited in the Niger Delta. Because the "destination" of the rivers was close to the Great Australian Bight lar
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