: an indurated shale produced by the consolidation of mud
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The Bright Angel mudstone also looks chemically distinct from other Jezero rocks.—Sharmila Kuthunur, Space.com, 3 Oct. 2025 The discovery of sulfur-rich organics followed in 2018, and just this year, more complex, long-chain alkanes were found in Martian mudstones.—Dirk Schulze-Makuch, Big Think, 17 Sep. 2025 Their images revealed that Bright Angel is a mudstone, a type of sedimentary rock formed from fine sediments deposited in water.—Ari Koeppel, The Conversation, 17 Sep. 2025 The mudstone is rich in silica and clays – mineral grains deposited in a low-energy environment found on the shores of a lake.—David Bressan, Forbes.com, 12 Sep. 2025 See All Example Sentences for mudstone
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