Sentence Examples with the word diatomaceous

In the shallow lakes and enclosed bays of the sea there began to be formed and still is in course of formation a deposit known by the name gyttja, characterized by the diatomaceous shells it contains.

A diatomaceous earth in central Nebraska, occurring especially in the region of Loup, is a good polishing powder, and is used for packing steam pipes.

Zelinkia and Philosyrtis are two slightly aberrant forms described by Giard from certain diatomaceous sands.