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Using modern micro-CT scanning, which employed medical-level scans on the previously untouched core samples from the Light Mantle, Magnarini and her colleagues investigated clasts, which are rocky fragments that broke off from the slope of South Massif.—Keith Cooper, Space.com, 22 Aug. 2025 The new research focused on clasts, fragments broken off from the mountain during the landslide.—Mrigakshi Dixit, Interesting Engineering, 20 Aug. 2025 The clasts can then react with water, producing a solution saturated with calcium.—Jennifer Ouellette, ArsTechnica, 30 July 2025 The presolar silicate grains inside the clasts contained significant amounts of the isotope Carbon-13.—Elizabeth Rayne, Ars Technica, 2 Aug. 2023 In other words, these small lime-clast chunks can react with water, post-mixing, to recrystallize as calcium carbonate, and fill cracks while reacting with the ash for further strength.—Tim Newcomb, Popular Mechanics, 3 Feb. 2023 Meanwhile, an identical chunk of concrete without the lime-clast structure never healed, and the water just kept flowing through the sample.—Daniel Cusick, Scientific American, 18 Jan. 2023 In geology, a clast is a fragment of an older rock, now broken up and embedded in a younger one.—Richard A. Lovett, Outside Online, 16 Nov. 2020 These differences in bubble shape and density in the same clast is not seen in pumices collected from typical explosive eruptions (like the pumices collected above the ocean surface at Macauley Island).—Erik Klemetti, Discover Magazine, 21 Jan. 2013
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