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Browsing Геология России by Title
Now showing items 3365-3384 of 39126
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(2002)An investigation of the teleseismic P-wave coda is performed using the single-scattering approximation. The method allows one to image short-wavelength scale (<=2 km) velocity and density heterogeneities and structures ...
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(1999)An analysis of deep crustal structure and seismicity was performed along four traverses (Bazalt, Rubin, Kvarts, and Armash-Akhaltsikhe), which cut across seismic areas, to detect differences in crustal structure between ...
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(1985)Based on deep seismic sounding data, a velocity model of the Earth's crust has been developed for the Kamchatkan segment of the Pacific transition zone. The velocity difference in the structure of the continental and oceanic ...
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(1989)Despite the large amount of deep seismic sounding [DSS] work done in the Northwest Basin, the traverses were set out very unevenly, and mostly cross the central and southwestern parts of the basin, west of the Shatskiy ...
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(2002)The Cenozoic rift system of Baikal, located in the interior of the largest continental mass on Earth, is thought to represent a potential analog of the early stage of breakup of supercontinents. We present a detailed P ...
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(2003)Despite the various opening models of the southwestern part of the East Sea (Japan Sea) between the Korean Peninsula and the Japan Arc, the continental margin of the Korean Peninsula remains unknown in crustal structure. ...
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(1999)Wide-angle seismic reflection/refraction data, recorded on ten seismographs from five large explosive charges, clearly define the crustal and upper mantle velocities of the Makarov Basin. These data are combined with a ...
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(2001)Integrated analysis of the gravity data measured in the northern Baltic Sea in 1997 and the near-vertical BABEL data shot in 1989 provides important constraints for the Subjotnian (1600–1500) rift-related evolution of the ...
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(1988)The Obruchev Rise is located near the junction of the Kurile-Kamchatka and Aleutian trenches. Continuous seismic profiling (CSP) has identified the structure of the sedimentary cover and the variations in its thickness. ...
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(2006)Based on data of three three-component seismographs belonging to the temporary small-aperture Russian Karelia Seismic Array (RUKSA) in the Petrozavodsk region (Karelia), a 1-D velocity model of the crust is constructed by ...
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(2003)The DOBRE project investigated the interplay of geologic and geodynamic processes that controlled the evolution of the Donbas fold belt, Ukraine, as an example of an inverted intracratonic rift basin. A deep seismic ...
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(2004)Two deep seismic reflection profiles from the South Caspian basin provide the first normal-incidence image of possibly the thickest sedimentary basin in the world. Significant features imaged with these seismic data are: ...
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(1989)The sediments of polar seas that now lie in the frozen-rock zone contain stratiform, lenticular, and more complex deposits of buried ice. They are most common in near-shore facies, in stratified sands and silts and in clays ...
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(1988)Cryogenic superimposed haloes above buried mineral deposits are reliably identified by lithochemical, hydrochemical and biochemical sampling. The great practical importance of this phenomenon is not confined to geochemical ...
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(1998)The partitioning of fifteen trace elements (Rb, Sr, Zr, Nb, Ba, La, Ce, Nd, Sm, Gd, Yb, Hf, Ta, Pb, and Th) between clinopyroxene and synthetic melt has been studied in two compositions along an isotherm in the ...
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(2003)We have experimentally determined the partitioning of REE (rare earth elements) between zoisite and hydrous silicate melt at 1,100 °C and 3 GPa. All REE behave moderately compatible in zoisite with respect to the melt and ...
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(2004)Titanite is a common accessory mineral in silicocarbonatite from the Afrikanda alkaline-ultramafic complex, Kola Peninsula, Russia. In addition to large crystals (described elsewhere), this rock contains microscopic crystals ...
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CRYSTAL CHEMISTRY OF BASIC LEAD CARBONATES. I. CRYSTAL STRUCTURE OF SYNTHETIC SHANNONITE, PB2O(CO3) (2000)The crystal structure of synthetic shannonite, Pb2O(CO3), orthorhombic, P2(1)2(1)2(1), a = 5.1465(7), b = 9.014(1), c = 9.315(1) Angstrom, V = 432.12(10) Angstrom (3), Z = 4, has been solved by direct methods and refined ...
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(2000)The crystal structure of synthetic 'plumbonacrite', Pb5O(OH)(2)(CO3)(3), hexagonal, P6(3)cm, a = 9.0921(7), c = 24.923(3) Angstrom, V = 1784.3(3) Angstrom (3), Z = 6, has been solved by direct methods and refined to R = ...
Now showing items 3365-3384 of 39126