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Browsing ELibrary by Title
Now showing items 13466-13485 of 21879
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(1999)The apparent polar wander path for the Pangea supercontinent is about 35° long for the interval of 295-205Ma, which means that in that interval Pangea rotated over an angle of 35° with respect to the rotation axis about ...
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(1998)Paleomagnetically determined apparent polar wander (APW) paths should contain components of individual plate motions as well as true polar wander (TPW), the uniform motion of the mantle relative to the spin axis. Quantifying ...
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(2004)Two generations of true triaxial loading (TTAL) apparatuses are presented. First generation apparatuses were intended primarily for true stress state imitation in rock or mineral specimens. Advanced second-generation ...
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(2003)Вид Bothriolepis extensa Sergienko был описан в 1961 г. из тубинской свиты (верхний девон, фамен) Минусинской котловины (Красноярский край). Переизучение коллекции по этому виду выявило весьма необычные особенности в ...
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(2000)Tumchaite, Na2(Zr,Sn)Si4O11·2H2O, is a new species from the Vuoriyarvi alkali-ultrabasic massif, Murmansk Region, Russia, where it occurs as colorless to white tabular monoclinic crystals associated with calcite, dolomite, ...
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(2001)The tungsten distribution in intrusive rocks of the region was studied based on analysis of ~250 composite samples combined from more than 900 individual samples. The average W content in the Paleozoic granites and ...
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(1999)The rates of accretion and core formation of the Earth and other inner solar system objects can be effectively studied using the newly developed 182Hf-182W chronometer. This approach offers far more leverage than any other ...
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(2004)Most geologists share the concept of the lithophile origin of tungsten mineralization and its relation to granitoid magmatism. Nevertheless, geological-prospecting practice frequently reveals tungsten mineralization of the ...
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(1990)The presence of two unusual zirconium minerals (tungsten-containing baddeleyite and the hydrated zirconium silicate) in the stratiform Algama ore occurrence suggests a new genetic type of tungsten-zirconium mineralization. ...
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(2004)The crystal structure of turanite, Cu 2+ 5 (V 5+ O 4) 2 (OH) 4 , from the Tyuya–Muyun Ra–U deposit, the Alai Ridge foothills, Osh district, Kyrgyzstan, triclinic, space group P ¯ 1, a 5.3834(2), b 6.2736(3), c 6.8454(3) ...
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(2001)The development of reliable coastal sediment transport and morphological models depends upon accurate parameterizations of sand transport processes. Here, an existing, local, one-dimensional vertical (1DV), one-equation ...
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(2003)The Tuva-Mongolia block has become commonly recognized and is often invoked in palisnpastic reconstructions as a separate terrane. However, its position has been doubted recently despite abundant geological evidence providing ...
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(2000)Many natural minerals and synthetic materials display twin microstructures resulting from displacive phase transitions. These microstructures may be removed temporarily from the sample by heating above the relevant transition ...
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(2001)Probability field simulation is being used increasingly to simulate geostatistical realizations. The method can be faster than conventional simulation algorithms and it is well suited to integrate prior soft information ...
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(2005)New paleomagnetic data have been obtained for the Late Vendian sedimentary rocks of the East Sayan and Southwest Baikal regions in the southwest of the Siberian platform. Two substantially different paleomagnetic components ...
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(2003)In this study, two methodologies are investigated for geoid determination from ground and airborne gravity data. These two methodologies depend on the downward continuation method used. The first is the inverse Poisson ...
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(1988)The paper reports on studies of the breakdown of complex petroleum hydrocarbons by seismic vibrations in the subsoil of the Ostashkovichi oilfield (Pripyat' basin, Belorussia), and stratification of complex mixtures of ...
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(1989)Ilmenite-clinopyroxene intergrowths of graphic texture (symplectites) are interesting not so much because they are rare, but because they may shed light on the conditions of crystallization of the plutonic ilmenite-bearing ...
Now showing items 13466-13485 of 21879