Definition of siltstone in English:


Syllabification: silt·stone
Pronunciation: /ˈsiltˌstōn


  • 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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