mudstone


mudstone
    a) A blocky or massive, fine-grained sedimentary rock in which the proportions of clay and silt are approximately equal.
    b) A general term that includes clay, silt, claystone, siltstone, shale, and argillite, and that should be used only when the amounts of clay and silt are not known or cannot be precisely identified.
   GG

Glossary of landform and geologic terms. 2013.

Look at other dictionaries:

  • Mudstone — formation on Lyme Regis East Beach. Mudstone (also called mudrock) is a fine grained sedimentary rock whose original constituents were clays or muds. Grain size is up to 0.0625 mm (0.0025 in) with individual grains too small to be… …   Wikipedia

  • Mudstone — photographiée dans les environs de Lyme Regis. La mudstone est une fine roche sédimentaire composée à l origine d argile ou de boue. La granulométrie est si petite qu elle ne peut être distinguée sans microscope. Le terme est d origine… …   Wikipédia en Français

  • mudstone — [mud′stōn΄] n. a fine grained sedimentary rock that is formed from silt and clay, similar to shale but not distinctly laminated …   English World dictionary

  • mudstone — /mud stohn /, n. Geol. a clayey rock with the texture and composition of shale but little or no lamination. [1730 40; MUD + STONE] * * * ▪ rock       sedimentary rock composed primarily of clay or silt sized particles (less than 0.063 mm [0.0025… …   Universalium

  • mudstone — noun Date: circa 1736 an indurated shale produced by the consolidation of mud …   New Collegiate Dictionary

  • mudstone — noun A fine grained sedimentary rock whose original constituents were clays or muds …   Wiktionary

  • mudstone — n. type of shale (Geology) …   English contemporary dictionary

  • mudstone — noun a dark sedimentary rock formed from consolidated mud and lacking the laminations of shale …   English new terms dictionary

  • mudstone — mud•stone [[t]ˈmʌdˌstoʊn[/t]] n. gel a clayey rock with the texture and composition of shale but little or no lamination • Etymology: 1730–40 …   From formal English to slang

  • mudstone — /ˈmʌdstoʊn/ (say mudstohn) noun a clayey rock of nearly uniform texture throughout, with little or no lamination …   Australian English dictionary


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