The Philippine Fault in the Late Cenozoic tectonic evolution of the Bondoc-Masbate-N. Leyte area, Central Philippines

摘要: Abstract This study of the Bondoc-Masbate-N. Leyte region contributes to an understanding its Late Cenozoic tectonic evolution. In this region, Philippine Fault, active left-lateral slip fault, dissects a complex structural history. complexity is attributed superposition three compressive and two tensional events. The first compressional event, Middle Oligocene age, appears be significant phase, previously unrecognized. second event related well-documented end Miocene collision between North Palawan Block western edge Mobile Belt, whereas last one represents phase associated with Fault. events occurred during Pliocene Pleistocene periods. present configuration Fault interpreted young feature (not older than upper Early Pliocene), postdating end-of-Miocene collision. observation does not, however, preclude existence strike-slip features believed have traversed Archipelago since mid-Tertiary times.