Publications

Arc and Banggai-Sula continental sliver resulted in the emplacement of large ophiolite masses and the formation of the Batui-Balantak foreland thrust and fold belt on the East Arm of Sulawesi. The convergence was followed by regional scale adjustments of crustal fragments, involving rotation to form strike slip faults on Sulawesi, and development of extensional faults on the Banggai Archipelago. The tectonic episodes have been responsible for formation of productive hydrocarbon basins in the region.Analyses of gravity profiles were performed for studying structures of the crust beneath the East Arm Sulawesi and Banggai Archipelago. Result of the analyses indicate a mild thickening with a peculiar geometry on the crustal block beneath the middle half of the East Arm region and intensely fractured as well as severely attenuated continental fragments beneath the Banggai Archipelago.