USGS CMG InfoBank: Sediment Turns To Stone

Source: Annenberg/CPB Resources - Earth Revealed - 15. Weathering and Soils

Keywords: weathering, grus, sediment, sorting, deposit, cementation, sandstone, siltstone, silt, sand, mineral

Our transcription: These grains accumulate in piles called, "grus."

As sediment is washed away by rivers and streams, sand-sized mineral grains may be sorted out, deposited, and cemented to eventually form sandstone.

And the silt may accumulate separately and harden as siltstone.