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Browsing Геология России by Title
Now showing items 16242-16261 of 39124
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(1997)We demonstrate qualitatively that frictional instability theory provides a context for understanding how earthquakes may be triggered by transient loads associated with seismic waves from near and distance earthquakes. We ...
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(2001)The local structural environment around Ni(II) in a series of crystalline model compounds and K-Ni-, Na-Ni-, and Ca-Ni-silicate glasses and melts has been evaluated by using high-resolution Ni K-edge XANES spectroscopy and ...
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(2001)The local coordination environment around Ni(II) in a series of sodium trisilicate (NS3) and albitic (ALB) glasses has been evaluated by using high-resolution XANES and anharmonic EXAFS spectroscopies. The glasses contain ...
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(2001)We present quantitative modeling results of the dynamic interplay of passive extension and active convective thinning of the mantle lithosphere beneath intracontinental rift zones investigating the relative importance of ...
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(1989)One promising area of theoretical research on metasomatism is the development of a macrokinetic model based on reversible reactions. The present paper describes a numerical investigation of a model of bimetasomatism in ...
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(1998)The pattern and style of mantle convection govern the thermal evolution, internal dynamics, and large-scale surface deformation of the terrestrial planets. In order to characterize the nature of heat transport and convective ...
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(2000)Numerical models are systematically presented for time-dependent thermal convection of Newtonian fluid with strongly temperature-dependent viscosity in a two-dimensional rectangular box of aspect ratio 3 at various values ...
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(1991)Transmission electron microscopy (TEM), including selected area electron diffraction (SAED), has been used to identify polytypes in iUite, phengite and muscovite from samples representing a wide range of diagenesis and ...
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(2003)Electron-microprobe (EMP) U-Th-Pb dating on polyphase and discordant monazites from polymetamorphic granulites of the Andriamena unit (north-central Madagascar) reveals inconsistent chemical ages. To explain these drastic ...
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(2001)The transmission electron microscope (TEM) allows a detailed characterization of textural and chemical features of fluid inclusions (shape, inner compositions and inner textures), at a resolution higher than that attainable ...
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(2001)This paper presents a theoretical study on normally incident elastic P-wave transmission across single dry fractures with a nonlinear normal deformational behavior. The effects of nonlinear fracture normal behavior on ...
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(2001)An explicit expression, based on the second-order Neumann expansion, is derived for computing the gradual evolution of a monochromatic compressional seismic wave as it propagates through a medium, the density of which ...
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(1993)It is shown in four examples from geologically different environments that accessory or minor minerals rich in rare-earth elements (REE) are often texturally associated with base-metal sulfides. The examples demonstrate ...
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(2000)We have investigated the stability and composition of potassium amphibole and its high-pressure breakdown product phase X in synthetic peralkaline and subalkaline KNCMASH (K 2 O–Na 2 O–CaO–MgO–Al 2 O 3 –SiO 2 –H 2 O) and ...
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(2000)We have investigated the stability and composition of potassium amphibole and its high-pressure breakdown product phase X in synthetic peralkaline and subalkaline KNCMASH (K2O–Na2O–CaO–MgO–Al2O3–SiO2–H2O) and natural KLB-1 ...
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(2002)This study focuses on the coupled transport of dissolved constituents and particulates, from their infiltration on a karst plateau to their discharge from a karst spring and their arrival at a well in an alluvial plain. ...
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(2000)This study re-estimates one important component in the global carbon cycle: the modern global fluviatile organic carbon discharge- and burial rates. According to these results, approximately 430×1012 g of terrestrial organic ...
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(2001)The transport of Th, Ra, and 210Pb from a continental source region and through an estuarine environment was investigated. Unlike previous studies, here both short- and long-lived nuclide data were obtained for river inputs, ...
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(2002)Understanding the stability of radiation-damaged zircon under low-temperature hydrothermal conditions is crucial to the application of zircon for U–Pb geochronology and as a host phase for the disposal of plutonium waste. ...
Now showing items 16242-16261 of 39124