Distribution of quaternary siliceous sponge spicules in sediments of ODP Leg 180 sites@en

Siliceous sponge spicules were found in Quaternary sediments recovered during drilling of Leg 180. The assemblage consists mainly of monaxon forms. Relative abundances of the various types are tabulated.在180航次钻探采获的第四纪沉积物中，发现了硅质海绵骨针（siliceous sponge spicules）。该海绵骨针组合体主要由单轴型骨针构成，各类骨针的相对丰度均已制成表格。