West Philippine Basin, formed during the early Oligocene epoch, is the oceanic crust located underneath the western part of the Philippine Sea; and is deeper and older than the eastern basins and has crustal heat-flow values approaching that of old oceanic crust.
West Philippine Basin, formed during the early Oligocene epoch, is the oceanic crust located underneath the western part of the Philippine Sea; and is deeper and older than the eastern basins and has crustal heat-flow values approaching that of old oceanic crust.