Https://upload.wikimedia.org/wikipedia/commons/a/aa/Pacific_Culture_Areas.pngThe parent lava product of the oceanic type of island is basalt. Oceanic islands are differentiated as superior volcanic-centered islands, including Hawaii, or low coral islands and atolls, including the Marshalls. Most Pacific islands are coral formations, although these rest on volcanic or other cores. Insi... https://spencerhcbvv.wikijm.com/9512483/indicators_on_pacific_islands_sea_freight_you_should_know