Neogene history of fluvial to shallow marine successions in the Kendari Basin, <scp>SE</scp> Sulawesi, Indonesia

Collision between Australia and SE Asia began in Sulawesi, the world's eleventh-largest island, Early Miocene subsequently Neogene sediments were deposited largely coastal to shelf environments throughout island. These have been assigned Celebes Molasse, previously considered as a single post-orogenic unit unconformably on pre-Neogene sedimentary, metamorphic ophiolitic rocks. The most complete extensive sequences of are Kendari Basin, situated at southern end Arm where an outcrop-based sedimentological study was undertaken interpret depositional environments, palaeogeography stratigraphy. oldest shallow marine carbonates deltaic siliciclastics Bungku Formation. They overlain by Upper Pandua Formation which consists variety including braided river channels, fluvio-tidal tidal flats, mouth bar complex shoreface deposits. A Mio-Pliocene subaerial unconformity separates marginal serpentinite-rich from overlying fluviatile quartz-rich Langkowala lower part include conglomeratic channel fill, while upper transgressive deposits decreasing maximum grain-size, marked reduction channel/overbank ratio increasing influence. Pliocene Eemoiko is characterised lags or onlap shell beds landwards-backstepping carbonate platform. improved understanding Basin will aid interpretation sedimentation history frontier basins surrounding many not yet drilled.