粉砂岩

fěnshāyán

noun

Meanings

1 siltstone (sedimentary rock made of silt-sized particles, between sandstone and mudstone in grain size)

Characters

Examples

HSK 3

这片地区主要由粉砂岩组成。

Zhè piàn dìqū zhǔyào yóu fěnshāyán zǔchéng.

This region is mainly made up of siltstone.

HSK 7-9

粉砂岩比砂岩颗粒更细。

Fěnshāyán bǐ shāyán kēlì gèng xì.

Siltstone has finer grains than sandstone.

Tips

usage

Geology textbook word. The 粉 (fěn, powder) marks finer grain than plain 砂岩 (shāyán, sandstone). The series goes 砾岩 (lìyán, conglomerate) - 砂岩 (sandstone) - 粉砂岩 (siltstone) - 泥岩 (níyán, mudstone) by decreasing particle size.

Stroke Order

粉 fěn

砂 shā

岩 yán