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Genesis and Clay Mineralogical Investigation of Highly Calcareous Soils in Semi-Arid Regions of Southern Iran
Calcium carbonate accumulation clay eluviation-illuviation neoformation semi-arid region
2011/11/7
Genesis and Clay Mineralogical Investigation of Highly Calcareous Soils in Semi-Arid Regions of Southern Iran.
OLIGOCENE CLAY MINERALOGY OF THE LINXIA BASIN:EVIDENCE OF PALEOCLIMATIC EVOLUTION SUBSEQUENT TO THE INITIAL-STAGE UPLIFT OF THE TIBETAN PLATEAU
China Clay Minerals Linxia Basin Oligocene Palygorskite Tibetan Plateau Uplift
2011/11/11
The clay mineral content of the Oligocene sediments in the Linxia basin has been investigated using X-ray diffraction, scanning electron microscopy, and high-resolution transmission electron microscop...
Clay Minerals as a Feasible Additive to Stabilize Cadmium in Contaminated Soils
Amendment Clay Minerals Contaminated Soils
2011/11/15
The adsorption behavior of clay minerals in cadmium contaminated soils has been studied in order to remedy soils contaminated with this metal in this work. The results show that Langmuir model best de...
Fibrous-clay mineral formation and soil evolution in Aridisols of northeastern Patagonia, Argentina
Palygorskite Sepiolite Fluorite Soil genesis Calcic and petrocalcic horizons Chubut province of Argentina
2011/11/11
Recent studies of soil–landscape relationships in northeastern Patagonia identified fibrous-clay minerals in calcic and petrocalcic horizons
developed on old fluvio-glacial plains called “Rodados Pat...
The Origin of Clay Minerals in Salina Playa-Mudflat Facies,Yenicubuk Formation (Lower-Middle Miocene), Gemerek, Sivas, Turkiye
Playa-Mudflat Facies Clay Minerals palygorskite
2011/11/8
The playa-mudflat facies under investigation are found in the Gemerek Basin (Sivas, T黵kiye). This Miocene basin is bordered by the Akdag Metamorphics (Paleozoic) to the N-NW, the Elmal齞ag Volcanic Roc...
Kinetic and isothermal studies of lead ion adsorption onto palygorskite clay
Lead Palygorskite clay Adsorption capacity Kinetic Isotherm
2011/11/7
The use of a natural palygorskite clay for the removal of Pb(II) from aqueous solutions for different contact times, pHs of suspension, and
amounts and particle sizes of palygorskite clay were invest...
Clay mineral association in the salt formation of the Transylvanian basin and its paleoenvironmental significance
clay minerals salt paleoenvironment Badenian Transylvania Romania
2011/11/11
The investigated clay fraction was separated from salt samples recovered from three boreholes located in the Praid salt deposit area. For comparison, samples collected from Turda deposit (Franz Josef ...
Paleoenvironmental Indicators of Clay Minerals in Miocene Sediments, Northern Iraq
Clay Mineralogys Miocene Sediments Palygorskite Kaolinite
2011/11/7
Clay mineralogy of the Miocene successions taken from northern Iraq constitute an important paleoenvironmental indication for the evolution of these sediments. Palygorskite is a common mineral especia...
Pedogenesis and clay mineralogical investigation of soils formed on gypsiferous and calcareous materials, on a transect, southwestern Iran
Clay minerals Palygorskite Gypsum crystals Calcareous soils Semi-arid SEM
2011/11/8
This study examined pedogenesis, as well as the clay mineralogy of soil and rock samples obtained from a transect of gypsiferous and calcareous materials. The main objectives of this research were to ...
Influence of the clay and the nickel content in catalysts for vegetable oil hydrogenation
Influence of the clay nickel content catalysts vegetable oil hydrogenation
2011/11/10
Nickel catalysts prepared using two different clays as support, natural bentonite and palygorskite, and with different nickel contents have been tested in the hydrogenation of a sunflower oil. The inf...
Comparative study of the effects of thermal and mechanical treatments on the structures of clay minerals
clay minerals grinding and thermal treatments reactivity structural changes
2011/11/10
Controlled heating (in air) of clay minerals leads to transformations into disordered structures and recrystallization into new phases at high temperatures. These phase transformations are of topotact...
Correlation of the clay mineral distributions in the sedimentary rocks of south and western Zagros, Iran
chlorite palygorskite kaolinite clay mineral distributions
2011/11/8
Clay minerals of calcareous sedimentary rocks of south (Fars and Kuhgiluyeh Boyerahmad Provinces) and western Iran (Kurdestan Province) as a part of the old Tethys area were investigated in order to c...
Study of Kinetic Parameters of Reject/Clay/Composites by Thermal Analysis
clay composite kinetic parameters reject
2011/11/11
Thermal degradation of granite and marble industry reject (GMIR), a red clay (RC)and their composites were studied by non-isothermal thermogravimetry (TG/DTG) in nitrogen atmosphere, differential ther...
Identification and Genesis of Clay Minerals in Soils from Farrokhshahr Area,Chaharmahal & Province
Clay minerals X-ray diffraction Electron microscope Infrared
2011/11/8
Identification and Genesis of Clay Minerals in Soils from Farrokhshahr Area,Chaharmahal & Province.
Distribution and Origin of Clay Minerals in Konya Neogene Sedimentary Basin, Central Anatolia, Turkey
clay minerals Konya lacustrine environment Neogene Turkey
2011/11/10
Abstract: Neogene sediments having both fluvial and lacustrine characteristics are widespread in the Konya region of central Anatolia. The fluvial units are typically green in colour and thick at the ...