How to Use mudstone in a Sentence

mudstone

noun
  • 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
  • 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
  • Made from small pieces of shale or mudstone, each bead had to be ground into a disc roughly half the size of an aspirin, then drilled with a hole.
    National Geographic, 1 July 2017
  • The photo above and to the right is a succession of alternating sandstone beds and mudstone beds (note trees for scale).
    Brian Romans, WIRED, 2 Feb. 2007
  • Curiosity drilled samples of mudstone in a region that is thought to have been a lake about three and a half billion years ago.
    Jay Bennett, Popular Mechanics, 7 June 2018
  • The rover began exploring an iron-rich ridge, leaving the mudstone behind.
    Paul Voosen, Science | AAAS, 7 June 2018
  • Everything else told them that the lake environment in which the mudstones formed 3 billion years ago would have been a likely place for life to exist.
    Eric Berger, Ars Technica, 7 June 2018
  • Formed of mudstone dating to the Middle Triassic epoch, the rock could not have originated in the Krapina rockshelter, which is composed of sandstone.
    David W. Frayer, Scientific American, 1 Feb. 2022
  • Located between layers of purplish-red mudstone and grayish-yellow sandstone were several armor plates and the shoulder, thigh, feet, back and rib bones of a stegosaur.
    Ashley Strickland, CNN, 3 Mar. 2022
  • 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
  • After more than four decades of searching for organic molecules on the surface of Mars, scientists have conclusively found them in mudstones on the lower slopes of Mount Sharp.
    Eric Berger, Ars Technica, 7 June 2018
  • The mudstone and carbonate sediment around the specimens indicates that the site had been deep underwater.
    Max G. Levy, WIRED, 19 Dec. 2022
  • 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
  • The road sits on the Franciscan formation, a stretch of marine sedimentary rocks and minerals like sandstone, mudstone, and salt smashed against the Northern American plate to form the coastline.
    Laura Mallonee, WIRED, 25 May 2017
  • 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
  • Of all of the layers, researchers are most interested in the bottomset, made of sandstone and mudstone—and for good reason: as on Earth, any biology that emerged in the Jezero waters would most likely have settled into the mud and sand at the base.
    Jeffrey Kluger, Time, 7 Oct. 2021
  • Curiosity has found evidence of ancient lakes in older, lower-lying rock layers and also in younger mudstone that is above Old Soaker.
    Raechel Price, The Mercury News, 18 Jan. 2017
  • The Murray formation is a rocky outcrop with characteristic bands of mudstone, possibly laid down by lakes of liquid water.
    Jesse Emspak Space.com Contributor, Fox News, 29 June 2017
  • Salt crystals left impressions in 3.5 billion-year-old mudstone, part of WesternAustralia's Pilbara Craton.
    Gemma Tarlach, Discover Magazine, 11 June 2019
  • This analysis of the Murray formation required taking many samples of the mudstone, but doing them would take time away from other experiments and observations.
    Jesse Emspak Space.com Contributor, Fox News, 29 June 2017
  • Searching for life beyond Earth means searching for organic compounds (like the organic matter in the mudstone) and molecules (methane is considered the simplest organic molecule).
    Doug Criss, CNN, 8 June 2018
  • The first study found several new organic compounds in samples of ancient Martian mudstone that is roughly three billion years old, while the second charted seasonal fluctuations of one of the most basic organic compounds: methane.
    Jay Bennett, Popular Mechanics, 7 June 2018
  • In a related finding also published in Science Thursday, space agency scientists said that the Curiosity rover found organic molecules contained in samples of three-billion-year-old mudstone on Mars.
    Robert Lee Hotz, WSJ, 7 June 2018
  • Perseverance has, for example, identified a 3-foot-wide mudstone, dubbed Wildcat Ridge, that contains organic compounds and likely formed billions of years ago as mud and sandy sediments were deposited in an evaporating lake.
    Denise Chow, NBC News, 15 Sep. 2022
  • Because ultraviolet radiation and oxidizing compounds in the martian soil would destroy any compounds exposed at the surface, Curiosity's scientists used a robotic drill to penetrate several centimeters into the mudstone.
    Paul Voosen, Science | AAAS, 7 June 2018

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'mudstone.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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