See kieselguhr.
Diatom-rich sediment, which has been laid down in a lacustrine or deep-sea environment. The diatom cell wall is made from silica, therefore the sediment is siliceous. See also bacillariophyceae; diatomaceous earth; radiolarian earth.
科学参考收录了60776条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。