通过野外观察、室内化学分析、矿物学分析、硫同位素分析、光学显微镜和扫描电镜观察 ,发现磷结核内所观察到的许多现象均与微生物的活动有关 ,微生物是使磷淀积的重要营力 ,这为磷结核的生物成矿作用提供了有力的证据。沉积物孔隙水物理化学条件的变化直接影响着磷结核的生长过程。 Through field observation, chemical analysis, mineralogical analysis, sulfur isotope analysis, light microscopy and scanning electron microscopy, it was found that many of the phenomena observed in the phosphorus-containing tuberculosis are related to the activity of microorganisms, which are important nutrients for phosphorus deposition , Which provides strong evidence for the bio-mineralization of P nodules. Sediment pore water changes in physical and chemical conditions directly affect the growth of phosphorus nodules.