海かい底てい堆たい積せき物ぶつMeanings1nounmarine sedimentTechnical term used in geology and oceanography for sediment deposited on the seafloor.海かい底てい堆たい積せき物ぶつの分ぶん析せきから過か去この気き候こう変へん動どうがわかる。Analysis of marine sediments reveals past climate changes.
