Definition of siltstone in English:

siltstone

Syllabification: silt·stone
Pronunciation: /ˈsiltˌstōn
 
/

noun

Geology
Fine-grained sedimentary rock consisting of consolidated silt.
More example sentences
  • Reddish-brown siltstone and fine-grained sandstone of the Organ Rock Tongue form the lower slopes of the hill and part of the nearly vertical wall above the lower slopes.
  • Permian shale, sandstone, siltstone, limestone, sands, marls, and dolostones were deposited by sea-level fluctuations.
  • The upper Gotham Member also comprises thinly interbedded mudstone, siltstone, and fine-grained calcareous sandstone.

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Word of the day guzzle
Pronunciation: ˈgəzəl
verb
eat or drink (something) greedily