Recent MGL1208 survey of Line Islands Ridge evaluates sedimentation on LIR.
LIR and its apron add 5% to the equatorial Pacific carbonate province.
Channels on LIR result from active erosion of pelagic carbonates to LIR apron.
Strong currents on northern LIR forms foraminiferal sand waves in Palmyra Basin.
Up to 1.3 km of sediment has accumulated since the late Cretaceous despite erosion.