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Browsing ELibrary by Title
Now showing items 5620-5639 of 19379
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(1989)Areas of Cenozoic tectonic and magmatic activity (including high plateaus and continental rifts) are characterized by anomalous low-velocity and low-density zones in the upper mantle. Petrochemical studies of Cenozoic ...
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(2004)The onset of gas hydrate nucleation is greatly affected by the thermal history of the water that forms its lattice structure. Hydrate formation experiments were performed in a 72 L pressure vessel by injecting bubbles of ...
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(2001)Behavior of the floating metallic spherical particles has been considered. Action of the standing capillary wave on them has been observed. The particles sink under action of the wave. Mathematical model of movement of the ...
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(2001)Deeply sourced thermal fluid is a kind of supercritical fluid composed of several constituents. Rising upward, it can transmit energy and material, and regulate and redistribute them in the inner Earth. For the formation ...
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INFORMATIVENESS OF CLASSIFICATION CRITERIA FOR NASSELLARIA (RADIOLARIA): THE FAMILY LAMPROCYCLIDAE (2001)It is known that many morphological types of radiolarians from the World Ocean remained stable from the Mesozoic to the Present. Radiolarians whose skeletons consist of three parts are an example of such a stable morphotype ...
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(2000)Ammoniation of montmorillonites pillared with polyhydroxo-complexes of Al was performed in flow conditions at 773-1073 K and monitored by IR spectroscopy. Interaction of the clay with ammonia revealed exchange of terminal ...
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(2003)Infrared and Raman spectra of cristobalite are presented as a function of temperature through the phase transition. The modes are assigned and the assignments compared to those of earlier workers. The compatibility of modes ...
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(2003)INTRODUCTION FTIR analysis of natural and synthetic amphiboles has been High-resolution transmission-electron microscopy (HRTEM) and infrared spectroscopy (FTIR) analyses have been done on amphiboles near the join tremolite ...
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(2004)The study of the mechanical consequences of shorterm pulse- and shock-type impacts on geological media related to human activity (explosions) and tectonic processes (earthquakes) is one of the priority fields in modern ...
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(2003)We report infrared spectroscopic observations of the incorporation of CO2 into pyrophyllite that has been heated between 200ºC and 1250ºC for periods of 15 min, 1 h and 5 days. The presence of CO2 is characterized by the ...
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(2002)Oxidation-reduction processes within natural systems greatly influence the properties of sediments, soils and clays. The objective of this experimental study was to gather new evidence for the effects of changes in redox ...
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(2001)The regional infrazonal scale for the Upper Bathonian - Lower Callovian is elaborated on the basis of successive ammonite assemblages in some Middle Jurassic sections of Central Russia. Four zones and 13 biohorizons, most ...
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(2001)Petrological arguments show that regionally developed low- to medium-pressure, high-temperature granulite facies metamorphism may critically enhance the lowering of crustal density with depth. This leads to gravitational ...
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(2003)Comparison of initial Pb-isotope signatures of several early Archaean (3.65–3.82 Ga) lithologies (orthogneisses and metasediments) and minerals (feldspar and galena) documents the existence of substantial isotopic heterogeneity ...
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(1996)The occurrence of inherited radiogenic Pb components in 35 Ma old magmatic titanite is reported here for the first time. The about 810 Ma age of the inherited components is identical to that contained in zircon from the ...
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(1997)Following Shiraki and Brantley (1995), who found different growth mechanisms for calcite crystal growth at 100°C and 100 bars total pressure, we investigated the inhibition of calcite crystal growth by Mg2+ under the same ...
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(2003)Zircons from the Simmern H5 chondrite and Pomozdino eucrite have been analyzed for their Hf-W isotope systematics. Zircons have high intrinsic Hf contents and coupled with low W, make them ideal Hf-W chronometers. However, ...
Now showing items 5620-5639 of 19379