Ooze - Why?

Japanese: 軟泥 - なんでい

A type of deep-sea pelagic sediment. More than 30% of the sediment is fine-grained and consists of shells of planktonic organisms. Based on the main components, it is divided into coccolith ooze, globigerina ooze, pteropod ooze, radiolarian ooze, diatom ooze, etc. The first three are calcareous, and the latter two are siliceous. Siliceous ooze is especially common in the deep sea, because calcium carbonate such as globigerina shells dissolves at extremely deep sea levels. Siliceous ooze often changes to red clay. Diatom ooze is characteristic of high latitudes.
→ Related topic: Bottom sediment

Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:

遠洋性深海堆積物の一種。30％以上が浮遊生物の殻などからなる細粒の堆積物。主要な構成物に基づいて，コッコリス軟泥グロビゲリナ軟泥，翼足虫軟泥，放散虫軟泥，ケイ藻軟泥などに分ける。前３者は石灰質，後２者はケイ質。ケイ質軟泥は特に深海に多く，これは，著しい深海ではグロビゲリナの殻などの炭酸カルシウムは溶解してしまうためである。ケイ質軟泥は，しばしば赤粘土に移り変わる。ケイ藻軟泥は高緯度地方に特徴的。
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