The source of silica derived from the thriving of the siliceous-shell organisms, combining with evidences from the formation of nodular celestite and sepiolite in the host rock.

• 结合栖霞组菊花状天青石和海泡石成因研究结果，本文认为组成栖霞组燧石结核的硅质来源与当时全球硅质生物的繁盛有关。