The chemical, morphological and mineralogical properties of two Enon sandy loam (fine, mixed, thermic Ultic Hapludalfs) soilsaprolite profiles, one formed on gabbro and the other on metagabbro, are compared. Clay skins are scarce and stress cutans common in the argillic horizons of these soils. Iron-manganese concretions are concentrated in soil horizons immediately above the argillic horizons....

The interaction of dibenzo-p-dioxin (DD), from aqueous suspension, with smectite was investigated using in situ vibrational spectroscopy (FTIR and Raman), structural and batch sorption techniques. Batch sorption isotherms were integrated with in situ attenuated total reflectance (ATR)-FTIR and Raman spectroscopy and X-ray diffraction. Sorption isotherms revealed that the affinity of DD for smec...

The characterization of Mg-clays in rock samples (well P1) from the Barra Velha Formation (Early Cretaceous) allowed establishment mineral assemblages on basis their kerolite and Mg-smectite (stevensite saponite) content. Kerolite-rich (A B) rarely contain saponite. Assemblage B is composed kerolite-stevensite mixed layers, while assemblage A consists more than 95% kerolite. Mg-smectite-rich (C...

Clay-mineralogy study of Taiwanese river-mouth sediments, recent deep-water seafloor sediments around Taiwan, along with collected from the Tainan shelf edge, have been investigated to access source and transport detrital fine-grained sediments. We determined clay mineralogy in both hemipelagites turbidites top 50 cm deep-sea sediment cores infer how are dispersed through river-fed turbidity cu...

A potential alternative fuel option is biodiesel, which produced mostly from natural resources due to the limited availability of petroleum supplies and environmental issues. Waste cooking oil (WCO) containing a high concentration free fatty acid (FFA) can be transformed into substantially benefits environment for reducing . The use smectite clay as catalyst in esterification reaction WCO with ...

Pedogenesis and clay mineralogy of soils and rock samples were studied in a transect of calcareous, gypsiferous, saline soils and sediments of Bakhtegan lake bank in southern Iran. The main objectives of study were to determine the occurrence of clay minerals and factors controlling their distribution pattern and relative abundance in soils and parent materials. The soil parent material is high...