The Sula Platform is a fragment of continental crust that is generally regarded as a piece of New Guinea that was detached from western Irian Jaya in late Cenozoic time. The assumption is based on the apparent correlation of the stratigraphy of the Sula Platform with that of western Irian Jaya. New data from the Sula Platform and western Irian Jaya show that this correlation is probably not valid. The best correlation of the Sula Platform stratigraphy with that of the former northern margin of the Australian craton is found in central Papua New Guinea between long 141 and 145°E, more than 1200 km farther east than any previously proposed site of origin, implying a displacement of more than 2500 km.

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