自生沉积物，指海水中由于化学、生物化学作用所形成的沉积物。
再生的磷可能释放到上覆水体中，或在沉积物中作为一种自生相而再沉淀，或被沉积物的其它组分所吸附。
The regenerated phosphate may be released to the overlying water and reprecipitated within the sediment as an authigenic phase, or adsorbed by other constituents of the sediments.
自生成因的铁硫化物的存在以及表层磁性参数的快速降低，都明确表明沉积物遭受了早期成岩作用。
Both the occurrence of authigenic iron sulphide and quick decrease of magnetic parameters at the surface clearly show that sediments from Core CSH1 have undergone early diagenesis.
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