GPS measurements and present seismicity illustrate the high rates of motions and tectonic complexity of the region, but provide little help in long-term reconstruction. During convergence of the major plates, there were numerous important episodes of extension, forming ocean basins and causing subsidence within continental regions, probably driven by subduction.Within eastern Indonesia, New Guinea and the Melanesian arcs, there are multiple Cenozoic sutures, with very short histories compared to most well-known older orogenic belts. will be delivered to you immediately after you complete your order.For more information on delivery for electronic products, click here.The Ontong Java Plateau collided with the Melanesian Arc.
The Australian margin, in the Bird's Head region, also began to collide with the SE Asian margin in Sulawesi.
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Indentation of Asia by India modified the Asian continent, but there is little indication that India has been the driving force of tectonics in most of SE Asia.
The most important Cenozoic plate boundary reorganisation was at about 25 Ma.