from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Plural form of siltstone.


Sorry, no etymologies found.


  • To the south and east this is replaced by Jurassic calcareous and micaceous siltstones and sandstones.

    Dong Phayayan Khao-Yai Forest Complex, Thailand

  • The spectacular White River Badlands formed through the erosion of the soft Brule and Chadron clays and siltstones.

    Ecoregions of North Dakota and South Dakota (EPA)

  • The Cumberland Mountains, in contrast to the sandstone-dominated Cumberland Plateau (68a) to the west and southwest, are more highly dissected, with narrowcrested steep slopes, and younger Pennsylvanian-age shales, sandstones, siltstones, and coal.

    Ecoregions of Tennessee (EPA)

  • For example, sycamore (Platanus occidentalis L.), green ash (Fraxinus pennsylvanica L.), and red maple (Acer rubrum L.) are more tolerant of sites that are compacted, poorly drained, or have minesoils primarily derived from siltstones or shales.

    Offsetting carbon dioxide emissions through minesoil reclamation

  • The Triassic Basins of the Carolinas occur in four narrow bands and have unusual Piedmont geology of unmetamorphosed shales, sandstones, mudstones, siltstones, and conglomerates.

    Ecoregions of North Carolina and South Carolina (EPA)

  • The underlying rocks are a complex mix of sandstones, siltstones, schist, and ultramafic rocks, some 280 million years old.

    Richmond temperate forests

  • The higher elevations of the Andamans often contain serpentine and gabbro formations, and at lower elevations Eocene sediments (sandstones, shales, and siltstones) with ultrabasic igneous intrusions predominate.

    Andaman Islands rain forests

  • It occurs as a gentle line of hills in the north-west of the park, consisting of clay-shales in the valleys and siltstones and quartzite sandstone on the scarps.

    Gunung Mulu National Park, Malaysia

  • The Pliocene-age to Eocene-age geology contains a variety of siltstones, sandstones, and calcareous and acidic clays.

    Ecoregions of Louisiana (EPA)

  • Ecoregion 72h is underlain by Pennsylvanian sandstones, siltstones, shales, and coal of the Tradewater and Caseyville formations and Mississippian Chesterian limestones, sandstones, siltstones, and shales.

    Ecoregions of Kentucky (EPA)


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