marine sediment
sea, ocean
カイ / うみ
bottom, sole, depth, bottom price, base, kind, sort
テイ / そこ
piled high
タイ / うずたか.い
volume, product (x*y), acreage, contents, pile up, stack, load, amass
セキ / つ.む
thing, object, matter
ブツ / もの