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Spatial variability of soil selenium as affected by geologic and pedogenic processes and its effect on ecosystem and human health
elenium spatial variability agricultural ecosystem human health
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2017/8/9
Selenium (Se) deficiency and excess in agricultural ecosystems are related to many human health problems through the food chain and depend on the spatial variability and bioavailability of Se in soils...
Pedogenic Smectites in Podzols from Central Finland: An Analytical Electron Microscopy Study
Analytical Electron Microscopy Finland High-Resolution Transmission Electron Microscopy Podzols Smectites
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2011/12/6
Abstract: Transmission electron microscopy (TEM) including high-resolution transmission electron microscopy (HRTEM) and analytical electron microscopy (AEM) were used to study the fine clay fraction (...
Pedogenic Formation of Kaolinite-Smectite Mixed Layers in a Soil Toposequence Developed from Basaltic Parent Material in Sardinia (Italy)
Basaltic Rock (Weathering) Kaolinite-Smectite Mixed Layers Sardinia Smectite-Layer Charge Soils
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2011/12/7
Abstract: Formation of kaolinite-smectite (K-S) mixed layers in a soil toposequence developed from basaltic parent material was examined. The soil formed in a temperate climate with alternating dry an...
Pedogenic Formation of High-Charge Beidellite in a Vertisol of Sardinia (Italy)
Beidellite High-charge Smectite Layers Illite-Smectite Mixed Layers Italy Smectite Soil Vertisol
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2011/12/8
Abstract: The fine clay (<0.1 祄) fraction of a clayey soil (Vertisol) from Sardinia (Italy) was studied by means of X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, cation exch...
Pedogenic and groundwater processes in a closed Miocene basin(northern Spain)
Pedogenic Miocene basin Sepfilveda-Ayll6n Basin
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2011/11/7
The Sepfilveda-Ayll6n Basin (SAB) was an episodically closed Miocene basin adjacent to the Tertiary Duero Basin (northern Spain). The sediments studied here represent a depositional system developed f...
Comparison of Pedogenic and Sedimentary Greigite by X-ray Diffraction and Mossbauer Spectroscopy
Greigite Mossbauer Sediment Soil XRD
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2011/12/29
Greigites from a gley and a Tertiary sediment were investigated by X-ray diffraction and Mössbauer spectroscopy. The cell-edge length a of 9.8639 Å ± 0.0003 Å for the soil greigite wa...
Pedogenic Formation of Montmorillonite from A 2:1–2:2 Intergrade Clay Mineral
Pedogenic Formation Montmorillonite Intergrade Clay Mineral
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2012/2/21
Montmorillonite was found to be the dominant clay mineral in surface horizons of certain soils of the North Carolina Coastal Plain whereas a 2:1–2:2 intergrade clay mineral was dominant in subjacent h...