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mudstone

[ muhd-stohn ]

noun

, Geology.
  1. a clayey rock with the texture and composition of shale but little or no lamination.


mudstone

/ ˈmʌdˌstəʊn /

noun

  1. a dark grey clay rock similar to shale but with the lamination less well developed
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


mudstone

/ mŭdstōn′ /

  1. A fine-grained, dark gray sedimentary rock consisting primarily of compacted and hardened silt and clay, similar to shale but without laminations. The proportions of silt and clay in mudstone are approximately equal.


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Word History and Origins

Origin of mudstone1

First recorded in 1730–40; mud + stone
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Compare Meanings

How does mudstone compare to similar and commonly confused words? Explore the most common comparisons:

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Example Sentences

Their remains are primarily preserved as carbon films in mudstone.

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mudspringermud stream