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Now showing items 12564-12583 of 39124
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(2003)An idea to consider rock textures from a geostatistical viewpoint is suggested. Mineral grains are coded by indicator functions. Four metrics are shown of interest for petrographic applications. The simplest one is used ...
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(2003)Detailed rock magnetic investigations, grain size determination and X-ray diffraction were carried out on loess and buried soils of the last glacial-interglacial cycle from Kurtak, southern Siberia. The susceptibility and ...
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(1988)Tectonic faults consist of water-saturated rocks crushed and crumbled into gravel and sand fractions, thus facilitating a hydraulic connection between the water-bearing zone and all other rocks till the ground surface. ...
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(2006)Rock avalanches are known to behave in extraordinary ways unlike other landslides, and their deposits in part reflect their unusual physical behavior. Recent experiments in granular physics suggest that many phenomena and ...
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(1992)A detailed investigation was made of the typomorphic and chemical characteristics of the rock-forming minerals in norite-diorite intrusions in the Voronezh crystalline massif. The rocks of the intrusions are characterised ...
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(2003)The computer-assisted physicochemical modeling of hydrogeochemical processes that occur in systems of sedimentary and crystalline rocks with water has been done for the following variables: the weight ratio of the reacted ...
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(2005)Based on the high correlation between species richness in sigmodontine rodents and temperatures, we propose a new model in order to quantify past climates. Because of the close phylogenetic relationship and the tooth ...
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(2001)Two isolated molars, the holotypes of Asiaparamys shevyrevae NESSOV, 1987b and Kazygurtia clivosa NESSOV, 1987b from the latest Paleocene Dzhylga 1 a locality are restudied, and an additional molar of A. shevyrevae from ...
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(1999)New data are reported on the geologic setting, structural relations, and composition of calcsilicate metasomatites (rodingites) found, in association with alkali-ultramafic volcanics, in the northern Valaginsky Range, ...
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(2001)Preface Rodinia and the Mesoproterozoic earth–ocean system www.elsevier.com/locate/precamres We could hardly introduce this volume without mentioning the now infamous words of our respected colleague, Roger Buick, who, in ...
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(1989)We have shown that the conditions of extrusion of deep-sea lavas on the sea floor are such that the makeup of their quenched flows preserves some structural characteristics of their endogene state and of the processes ...
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(1996)The structure of glasses and melts in the NaAlSiO2-SiO2 system was determined in situ as a function of temperature by Raman spectroscopy, in the temperature range of 300 K–1800 K. The high-frequency envelope of the Raman ...
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(2000)Hornblende, a common mineral in granitic soils, may act as a source for a variety of metals needed by bacterial species for enzyme function (e.g., Fe, Zn, Mn, Cu, Co, Mo, V, Ni). A species of the bacterial genus Streptomyces ...
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(PANGAEA, 2012-06-22)
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(1999)The role of carbon dioxide in the dynamics of magma ascent in explosive eruptions is investigated by means of numerical modeling. The model is steady, one-dimensional, and isothermal; it calculates the separated flow of ...
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(1997)The Maimecha-Kotui province in the North of Siberian platform is the largest province of ultramafic alkaline rocks in the world. The province comprises thirty-seven central-type complexes together with numerous dykes. The ...
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(2002)Little is known of the role of solution species of soil aluminosilicates in the formation of humic substances. Catalysis by hydroxy-aluminosilicate (HAS) ions, one of the major forms of soluble aluminum and silicon and the ...
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(2004)We present 3-D laboratory experiments constructed to investigate the pattern of mantle flow around a subducting slab under different boundary conditions. In particular we present a set of experiments, characterized by ...
Now showing items 12564-12583 of 39124