: an indurated shale produced by the consolidation of mud
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By combining measurements of different elements in Earth's crust and mantle, rock core observations, and natural gamma-ray data from Jurassic-era lake mudstones, the team reconstructed how environmental conditions changed through time.—Stefanie Waldek, Space.com, 12 Jan. 2026 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