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Mudstone boulder image credit: NOAA Office of Ocean Exploration and Research (Usage does not imply endorsement of site contents) |
To finish reading, click on "Mudstones Form Rapidly". You may also want to refer to "The Hard Truth on Mudrock".One of the most common sedimentary rocks can form a hundred times faster than previously thought.In 2007, geologists learned that their theory for mudstones was incorrect. Mudstones—the most common sedimentary rocks—do not have to form in calm water, as tiny particles drift down the water column and collect on the bottom. Instead, particles can clump or flocculate in currents and settle out much more quickly. Now, another model, based on experimental evidence, speeds up the process even more. This was just published in the AGU journal Geophysical Research Letters. Trower et al say,
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