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Геология России: Recent submissions
Now showing items 1621-1640 of 43490
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(2006)Although tenuous, the atmosphere of Mars affects the evolution of impact-generated vapor. Early-time vapor from a vertical impact expands symmetrically, directly transferring a small percentage of the initial kinetic energy ...
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(2006)In this study, we investigated melt inclusions hosted in pyroxene and plagioclase to find direct evidence for the composition of melt components in the pre-eruptive magmas of the current eruption of Arenal volcano and to ...
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(2006)The Palaeoproterozoic collision of Archaean Fennoscandia, Volgo-Uralia and Sarmatia, viewed as a large composite of terranes, each with an independent history during Archaean and Early Proterozoic time, formed the East ...
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(2006)Melt inclusions in phenocrysts from Volcán Popocatépetl and Volcán de Colima within the Trans Mexican Volcanic Belt (TMVB) are dacitic to rhyolitic. Trends in melt inclusion major element and water concentrations form the ...
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(2006)Recent advances in FTIR spectroscopic imaging allow images of elements or molecules such as water to be constructed on samples over a large (sub mm) area. The imaging detector consists of 64 × 64 channels providing 4096 ...
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(2006)Modelling of gravity and airborne magnetic data integrated with seismic studies suggest that the linear gravity and magnetic anomalies associated with Moyar Bhavani Shear Zone (MBSZ) and Palghat Cauvery Shear Zone (PCSZ) ...
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STABILITY ANALYSIS OF VELOCITY IMAGING OF 2D MULTILAYERED STRUCTURES THROUGH INVERSE REFLECTED RAYS (2006)Inverse reflected rays are used to image velocities and interfaces in 2D multilayered media. Their direction cosines are specified from the receiver and the source, related respectively to the traveltime gradients of the ...
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(2006)Crystal size distributions can follow any function, provided the total crystal content is less than 100%. However, many theories suggest that they approximate a number of ideal distribution models. The most widely adopted ...
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(2006)Four generations of mineral assemblages have been identified in ultrahigh-pressure (UHP) eclogites from the Hong'an area, recording four metamorphic stages of the exhumation trajectory, i.e., garnet + omphacite + kyanite+ ...
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(2006)Stable carbon and oxygen isotopic compositions of carbonatites are results of fractionation caused by various magmatic and post-magmatic processes during their generation and evolution. In the present work, we review ...
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(2006)Release of metamorphic fluids within the slab and/or from the slab to the mantle wedge in subduction environments can produce important metasomatic effects. Ultrahigh-pressure (UHP) metasomatised rocks represent ideal ...
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(2006)The depth of origin of kimberlite magmas remains controversial. Hypothesized sources include the asthenosphere, the lower part of the upper mantle, and the lower mantle. Based on Sr-Nd isotope systematics, kimberlites are ...
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(2006)The Gföhl nappe, the uppermost structural unit in the Moldanubian Zone of the Variscan Bohemian Massif, contains a distinctive association of HP crustal granulite (900-1000°C, 15-18 kbar) and UHP mantle garnet peridotite ...
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(2006)In this study the Penman-Monteith reference evapotranspiration, pan evaporation measured by a 20 cm pan, and pan coefficient, i.e., the ratio of Penman-Monteith evapotranspiration to pan evaporation, at 150 meteorological ...
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(2006)A total of 58 new archaeomagnetic directions has been determined from archaeological structures in Spain. Together with five previous results they allow the compilation of the first archaeomagnetic catalogue for Spain, ...
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(2006)Stratified sands, which are components of the glacial and interglacial Vilkiškės and Tartokai profiles (Lithuania), were used as research material for experimental dating with the TL method. Sieve analyses of samples ...
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(2006)We present results of the analysis of Earth rotation data derived from the continuous very long baseline interferometry (VLBI) campaign CONT02. The high-frequency contents of polar motion and UT1 are analyzed and compared ...
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(2006)At the end of the Miocene, the European Alps ceased outward expansion, and tectonic uplift and exhumation shifted into the orogen interior. This shift is consistent with a change from orogenic construction to orogenic ...
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(2006)High-magnitude outburst floods cause rapid landscape change and are a hazard to life, property and infrastructure. However, high-magnitude fluvial processes and mechanisms of erosion, transport and deposition are very ...
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(2006)Despite historical linkages, the fields of geology and soil science have developed along largely divergent paths in the United States during much of the mid- to late-twentieth century. The shift in recent decades within ...
Now showing items 1621-1640 of 43490