mud·​stone | \ ˈməd-ˌstōn How to pronounce mudstone (audio) \

Definition of mudstone

: an indurated shale produced by the consolidation of mud

Examples of mudstone in a Sentence

Recent Examples on the Web The new angiosperm was named Gansufructus saligna, and all the fossil specimens were collected from the grayish green mudstone of the upper Zhonggou Formation, dating back to 112 million years ago. David Bressan, Forbes, 24 May 2021 Previous attempts to solve the puzzle did not take into account the fact that the crust can suck up water and lock it into hydrated minerals like clay and mudstone, Robin George Andrews reports for National Geographic. Theresa Machemer, Smithsonian Magazine, 19 Mar. 2021 The rover will range widely, performing science experiments and occasionally drilling small cores of mudstones and other rocks that could hold signs of ancient life. Daniel Clery, Science | AAAS, 21 Nov. 2019 To reach pockets of coal, the drill passed through about a third of a mile of sandstone, mudstone, and hundreds of yards of permafrost. Juliana Hanle, Scientific American, 18 Nov. 2019 In June 2018, organic matter was found on Mars in soil samples taken from 3 billion-year-old mudstone in the Gale crater by the Curiosity rover. Ashley Strickland, CNN, 24 June 2019 Parts of the bluffs are made of robust mudstone, but other sections are precarious, such as those filled with loose materials when the railroad was first constructed. Joshua Emerson Smith, San Diego Union-Tribune, 14 June 2019 And so Curiosity drove on to the base of Mount Sharp and sampled some of the mudstones (a rock that formed from muds and clays) found there. Eric Berger, Ars Technica, 7 June 2018 Samples of ancient mudstone yielded a diversity of organic molecules in SAM’s oven—and in a separate study, five years’ worth of atmospheric samples gathered by SAM tracked fluctuating levels of methane that peaked in the Martian summer. Adam Mann, Scientific American, 7 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mudstone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of mudstone

circa 1736, in the meaning defined above

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The first known use of mudstone was circa 1736

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Cite this Entry

“Mudstone.” Dictionary, Merriam-Webster, Accessed 28 Sep. 2021.

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