海底 かいてい堆積 たいせき ぶつであれば
kaite itai sekibutsudeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 海底堆積物

1. If it is seafloor sediment; Provided it is seafloor sediment; Assuming it is seafloor sediment

Ba Conditional