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Paleosols are well preserved beneath Upper Cretaceous continental sediments from the eastern Gulf Coastal Plain to the northern Mississippi Embayment. These buried soils are remnants of land surfaces that weathered during Cretaceous time and formed on several rock types, including Precambrian(?) metamorphic rocks and Paleozoic limestone and sandstone. Most soil profiles have distinctive morphologic features and exhibit pedogenic horizon zonation with ferruginous and clay-rich B horizons grading downward to saprolite and parent material within 7 m. Organic matter is not preserved, but pedotubules, which we interpret as fossil roots or burrows, are present in many paleosols. Illuvial and residual concentrations...

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