siltstone

[ silt-stohn ]

noun

, Petrography.

1. a very fine-grained sandstone, mainly consolidated silt.

siltstone

/ ˈsɪltˌstəʊn /

noun

1. a variety of fine sandstone formed from consolidated silt

siltstone

/ sĭlt′stōn′ /

1. 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.

Word History and Origins

Origin of siltstone¹

First recorded in 1925–30; silt + stone

Example Sentences

Employing cutting-edge techniques like Rock Eval Pyrolysis, they deciphered the organic richness of different types of rock, including shale, claystone, sandstone, and siltstone.

From Science Daily

A necklace of beads made from glass, amber, siltstone and shale had been lost in the fire.

From Science Daily

There, among these bobble-headed rocks, we visited the Three Sisters and learned about the odd landscape of hard sandstone and soft siltstone that created the many goblins inside the park.

From Los Angeles Times

Riding in the direction of those sub-regions, I pass cuttings of fractured siltstone and embankments overlooking vineyards where twisted, leafless vines are still struggling to escape the clutches of winter.

From The Guardian

Its right side is still entombed in mudstone and siltstone, and its mouth is closed.

From New York Times