siltstone

[ silt-stohn ]
/ ˈsɪltˌstoʊn /

noun Petrography.

a very fine-grained sandstone, mainly consolidated silt.

Origin of siltstone

First recorded in 1925–30; silt + stone

Words nearby siltstone

silo, siloam, silone, siloxane, silt, siltstone, silures, silurian, silurid, silva, silvadine

British Dictionary definitions for siltstone

siltstone
/ (ˈsɪltˌstəʊn) /

noun

a variety of fine sandstone formed from consolidated silt

Scientific definitions for siltstone

siltstone
[ sĭlt′stōn′ ]

A fine-grained sedimentary rock consisting primarily of compacted and hardened silt. Siltstones are similar to shale but without laminations. They vary in color from black or gray to brown or red.