Quantitative radiolarian slides prepared from soft marine sediments

摘要

A technique for preparing quantitative slides from soft marine sediments is described. This technique can be applied to radiolarians and other coarse sediment particles. The preparation procedure comprises four steps: freeze drying, chemical treatment, wet sieving of the bulk sediment, and sedimentation of the dry coarse fraction. Formulas which refer to three general cases of calculating radiolarian or other particle frequencies are included.