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Physico-chemistry of continental bentonites and kaolin for ceramic applications
Physico-chemistry continental bentonites kaolin ceramic applications
2012/3/14
Physico-chemistry of continental bentonites and kaolin for ceramic applications.
Improving the swell index and fluid loss methods for compatibility testing of Bentonites
Improving swell index fluid loss methods compatibility testing Bentonites
2012/3/30
Geosynthetic clay liners (GCLs) are now a common feature of environmental lining systems in landfills, leach-heap pads, impoundments, irrigation canals and aesthetic ponds. The ASTM standard method (A...
Utilization of Slovak bentonites in deposition of high-level radioactive waste and spent nuclear fuel
Slovak bentonites Jelsovy potok Kopernica Lastovce Lieskovec Dolna Ves
2011/11/10
The basic strategic aims in the field of managing high-level radioactive waste and liquidation of nuclear power plants are all contained in the Energy policy of the Slovak Republic. Its aim is to reso...
New correlations of Telychian (Silurian) bentonites in Estonia
bentonite K-bentonite Telychian sanidine correlation
2009/10/22
Seventy-seven Telychian bentonite samples from six drill-core sections were correlated on the basis of their sanidine composition. In total, bentonites from 43 volcanic eruptions, of which six are new...
Use of immobile trace elements for the correlation of Telychian bentonites on Saaremaa Island,Estonia,and mapping of volcanic ash clouds
bentonites K-bentonites Telychian correlation isopach schemes East Baltic
2009/10/21
Thirty suspected altered volcanic ash (bentonite) samples from the Nässumaa-825 and Orissaare-859 sections were analysed by the X-ray fluorescence method. Twenty of these samples revealed chemica...
Methods of the montmorillonite content determination in foundry bentonites
Foundry bentonites Montmorillonite FTIR method
2011/4/1
This paper presents results of the measurements montmorillonite content in foundry bentonites and mixtures of bentonite – lustrous carbon carrier by three methods: spectrophotometric method with the u...
Granulometric evaluation of continental bentonites and kaolin for ceramic applications
Granulometric evaluation continental bentonites kaolin ceramic applications
2012/3/14
Granulometric evaluation of continental bentonites and kaolin for ceramic applications.
Alteration of Three Turkish Bentonites by Treatment with Na2CO}3 and H}2SO}4
Bentonite soda activation acid activation
2010/4/22
In this study, fine fractions of bentonites from the Çankırı and Kütahya regions were treated with Na2CO3 and H2SO4. The resulting materials were analysed by X-ray diffraction (XRD), ...
Formation and Growth of Smectites in Bentonites: A Case Study from Kimolos Island, Aegean, Greece
Bentonite Crystal Growth Montmorillonite Mordenite Open System Particle-Size Distribution Precursor Random Ripening
2011/12/5
Abstract: The low-temperature alteration of a rhyolitic rock from Kimolos Island, Aegean, Greece, yielded an alteration profile characterized by gradual transition from fresh glass to bentonite contai...
Transmission Electron Microscopy Study of Conversion of Smectite to Illite in Mudstones of the Nankai trough: Contrast with Coeval Bentonites
Bentonites Diagenesis Illite Marine Sediments Mixed-Layered I-S Nankai Trough Shales
2011/12/2
Abstract: Clay minerals in shales from cores at Site 808, Nankai Trough, have been studied using X-ray diffraction (XRD), scanning transmission electron microscopy (STEM), and analytical electron micr...
Three-Dimensional Crystal Structures of Illite-Smectite Minerals in Paleozoic K-Bentonites from the Appalachian Basin
Bentonite Cis-Vacant Octahedra Crystal Structure Illite-Smectite Polytype Rotational Disorder X-ray Diffraction
2011/12/2
Abstract: The three-dimensional crystal structures of illite-smectite (I-S) in K-bentonite samples from the Appalachian Basin are characterized by rotational disorder in the stacking sequence of 2:1 i...
Eocene and Oligocene Otay-Type Waxy Bentonites of San Diego County and Baja California: Chemistry, Mineralogy, Petrology and Plate Tectonic Implications
Chemistry Mineralogy Otay Bentonite Plate Tectonics Volcanism Waxy Bentonite
2011/12/2
Abstract: Otay-type waxy bentonites of San Diego County are illite-smectite (I-S) with 85% dioctahedral smectite mixed with dioctahedral illite showing a Reichweite of 0. Primary or secondary waxy ben...
The Kinetics of the Smectite to Illite Transformation in Cretaceous Bentonites, Cerro Negro, New Mexico
Bentonite Cerro Negro Cretaceous Illite I-S K-Ar Kinetics Microorganisms New Mexico Smectite
2011/12/7
Abstract: The thermal effects, as well as the survivability and origins of microorganisms in Cretaceous rocks, are evaluated from the timing and extent of the smectite to illite transformation in Cret...
Characterization of mixed-layer illite-smectite from bentonites using microscopic, chemical and X-ray methods: Constraints on the smectite-to-illite transformation mechanism
Characterization mixed-layer illite-smectite microscopic X-ray methods smectite-to-illite transformation mechanism
2012/3/31
We studied mixed-layer illite-smectite (I/S) (,1 or 0.5 mm size fractions) in 28 diage-netic bentonite samples, Pliocene to Ordovician in age, from different locations in North America and Europe to i...
Mechanism of Illitization of Bentonites in the Geothermal Field of Milos Island Greece: Evidence Based on Mineralogy, Chemistry, Particle Thickness and Morphology
Bentonite Hydrothermal alteration Illitization Illite/smectite Kaolinite Neoformation Ostwald ripening Solid state transformation
2011/12/28
Hydrothermal alteration has caused illitization along a 40m vertical profile in the Tsantilis bentonite deposit, Eastern Milos, Greece which consists principally of a Wyoming-type montmorillonite and ...