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Showing 1 to 5 of 5 for “"hydroxy-interlayered vermiculite"”.
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Quantifying Properties and Variability of Expansive Soils in Selected Map Units
… shale. Smectite weathers to kaolinite and hydroxy-interlayered vermiculite with increasing proximity to the soil surface thus accounting for the observed decrease in smectite toward the soil surface. The highest amount of smectite from the granite gneiss, limestone, sandstones and shales, …
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Phosphorus Losses in Runoff from Virginia Soils
… were related to Al bearing minerals such as hydroxy-interlayered vermiculite (HIV), gibbsite, and amorphous Al. Samples dominated by kaolinite retained very little P. Application of these results to runoff data showed that soil types with a HIV:kaolinite ratio > 0.5 caused significantly less …
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Virgin hardwood forest soils of western North Carolina
… Bibbsite was common throughout all soils and hydroxy-interlayered vermiculite (HIV) is the dominant clay-sized phyllosilicate in surface horizons. Kaolinite was low in all soils, but was more abundant on south-facing slopes. The silt fractions and sand fractions contained significant …
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Factors Influencing Biotite Weathering
… supplies nutrients such as K+ and weathers into vermiculite/montmorillonite or kaolinite, which have varying influences on soil properties and characteristics. This study was conducted to determine if the weathering mechanisms of biotite are controlled by temperature, or if other factors, such as …
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Pedogenesis and geomorphic implications of soils developed on Blue Ridge alluvial fans, Virginia
… free Fe abruptly increase at the discontinuity. Hydroxy-interlayered vermiculite (HIV) dominates unit A clay fractions; whereas, kaolinite is abundant in unit B. Gibbsite is higher in unit B than unit A. Weathered ρ<sub>r</sub><sub>b</sub> is not different among five sites on a bajada within the …