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Геология России: Recent submissions
Now showing items 1041-1060 of 41109
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(2006)The effects of pH and ionic strength on the rheological behavior of aqueous suspensions of both crude and purified Wyoming bentonite and natural interstratified illite-smectite from Tunisia were investigated. Flow tests ...
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(2006)Chlorite is one of the most common Fe-bearing minerals and is susceptible to weathering in loess and soils. The conventional method for analyzing chlorite, based on XRD with the Rietveld technique, is quantitative, but ...
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(2006)Cryosols from Maritime Antarctica have been less studied than soils from continental areas of Antarctica. In this work X-ray diffraction, difference X-ray diffraction, differential thermal analysis, thermogravimetry, ...
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(2006)A series of organoclays with monolayers, bilayers, pseudotrilayers, paraffin monolayers and paraffin bilayers were prepared from montmorillonite by ion exchange with hexadecyltrimethylammonium bromide (HDTMAB). The HDTMAB ...
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(2006)Water-vapor sorption experiments were conducted to quantify bulk volume change of compacted expansive clay specimens resulting from interlayer hydration and dehydration in the crystalline swelling regime. Effects of ...
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(2006)Interest in hydrotalcite-like compounds has grown due to their role in controlling the mobility of aqueous metals in the environment as well as their use as catalysts, catalyst precursors and specialty chemicals. Although ...
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(2006)The origins of >3900 Ma detrital zircons from Western Australia are controversial, in part due to their complexity and long geologic histories. Conflicting interpretations for the genesis of these zircons propose magmatic, ...
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(2006)The study focuses on the response of a sulphate rich lowland river (River Spree) to a further increase in sulphate concentration as a result of mining activities in its catchments. It was hypothesized that riverine sediments ...
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(2006)Bentonite, biotite, illite, kaolin, muscovite, vermiculite and zeolite were acidified or alkalized with HCl orNaOH of concentrations 0.0, 0.1, 1.0 and 5.0 mole dm−3 at room temperature for 2 weeks and converted into Ca ...
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(2006)The precipitation of gold in response to changes in various intensive and extensive parameters of a hydrothermal system may be an effective means of gold ore deposition but sorption processes may also provide an exceedingly ...
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(2006)Disequilibria between210Pb and226Ra can be used to trace magma degassing, because the intermediate nuclides, particularly222Rn, are volatile. Products of the 1980-1986 eruptions of Mount St. Helens have been analysed for ...
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(2006)The Catalan Coastal Ranges (CCR) form part of the northeastern Iberian Mediterranean margin. This margin typifies the transition zone between the thickened crust of the Pyrenees and Ebro Basin (32 to 40 km), and the extremely ...
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(2006)Long period magnetotelluric soundings are available in a 180-km long WSW-ENE profile across the Alto Paranaíba igneous province, a complex Cretaceous alkaline province situated mostly in the southern Neoproterozoic Brasilia ...
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(2006)The Breccia Museo, a pyroclastic flow that crops out in the Campi Flegrei volcanic complex (Naples, Italy), contains alkali-syenite (trachyte) nodules with enrichment in Cl and incompatible elements (e.g., U, Zr, Th, and ...
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(2006)Ground movements (bradyseism) at Campi Flegrei, Italy, have been explained by a classical model that involves the intrusion of new magma to shallow depth, or by models which emphasize both the magmatic and aquifer effects. ...
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(2006)The Vesuvius area has been inhabited for several millennia and during this time several large and well-documented eruptions have occurred, but little is known about the earthquakes associated with these eruptions and no ...
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(2006)This chapter on surface and interface chemistry of clay minerals follows a bottom-up approach. It starts with the properties of surface oxygens and hydrogens as influenced by chemical composition and structure. Then, three ...
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(2006)This chapter describes X-ray absorption spectroscopy (XAS). XAS corresponds to a range of X-ray spectroscopic techniques based on scattering, absorption, and emission (fluorescence, auger) of X-rays by matter. Synchrotron-based ...
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(2006)The potential for U-Pb dating of the mineral perovskite, using laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS), has been evaluated. Perovskite can have relatively elevated U and Th contents, making ...
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(2006)This chapter describes layered double hydroxides. Among the group of minerals referred to as nonsilicate oxides and hydroxides, the layered double hydroxides (LDH) have many physical and chemical properties that are ...
Now showing items 1041-1060 of 41109