oolite

Oolite lime sand packs naturally with 40 % porosity because the particles are essentially spheroids.

自然堆积的灰质鲕粒砂具有40%的孔隙度,因为其颗粒其本上都是球状的.

辞典例句

The thin bedded siliceous - rocks include chert and depositional quartz with textures of oolite and pebble.

矽质岩包括燧石和沈积石英岩,呈薄层状产出,沈积石英岩具鲕状、砾状结构.

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