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Browsing Геология России by Title
Now showing items 8445-8464 of 39195
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(2018)Clusters of small-volume volcanoes that individually may be defined as monogenetic, but have interlinked andinterconnected plumbing systems, are used to be categorized as monogenetic volcanic fields (MVF).We argue that ...
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(2004)We report srilankite in a gabbroic vein cutting a serpentinized peridotite collected from the Atlantis II Fracture Zone, the slow-spreading Southwest Indian Ridge, using submersible SHINKAI 6500 of the Japanese Marine ...
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(2018)An analysis of local seismicity within the Klyuchevskoi Volcanic Cluster and Shiveluch Volcano for the period 2000–2017 revealed a sequence of plane-oriented earthquake clusters that are interpreted here as the emplacement ...
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(2002)An SEM, REE, and mineral Sm-Nd isotope study on olivine-plagioclase coronas in the Vestre Dale gabbro, Norway, was carried out in order to solve the temporal relationships within these coronas. It is demonstrated that in ...
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(2003)The structure of the Caledonian area of the Central Asian fold belt is determined by Caledonian folded formations made up of Vendian-Cambrian ophiolite and island-arc complexes and by terrains or microcontinents of older ...
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(2003)The results of geochronological, geochemical, and isotopic investigations for magmatism and geodynamics of the Southern Baikal Volcanic region (mantle hot spot) are presented. The data presented suggest that the formation ...
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(PANGAEA, 2008-09-03)Original results of igneous rock studies are presented. The rocks were dredged during a marine expedition (cruise 37 of R/V Akademik M.A. Lavrent'ev in August-September, 2005) in the region of the submarine Vityaz Ridge ...
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(1997)We have performed petrologic and geochemical studies on pyroxene-phyric, magnesian basalt clasts from the howardites EET 92014 and Kapoeta. Pyroxenes in the EET 92014 clast are strongly zoned from Wo4.5En68.9Fs26.6 cores ...
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(1997)The eruptive history of the Shiveluch andesite volcano included two Holocene events, during whichthe volcano erupted unusual rocks: medium-potassium, amphibole-bearing magnesian basalts (7600 years ago) and high-potassium ...
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(2004)Geological-structural, petrochemical, isotopic and geochronologic data on late-tectonic granitoid massifs and dikes cutting the metavolcanics of the Kostomuksha greenstone belt, western Karelia were discussed. The intrusions ...
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(Czech Geological Society, )
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(1996)A significant mineral assemblage has been found as an inclusion in a natural diamond from the Finsch kimberlite pipe of South Africa: a euhedral rhombohedron-shaped magnesite (MgCO3) crystal (d ∼ 30 μm) co-exists with ...
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(1995)Experiments were conducted in air and at low oxygen fugacity (fO2) to evaluate Mg and Ti partitioning between anorthite and liquid (DMg and DTi) in a synthetic composition similar to that of a Type B Ca, Al-rich inclusion ...
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(2006)We present evidence of inhibition of calcite dissolution by dissolved magnesium through direct observations of the (104) surface using atomic force microscopy (AFM) and vertical scanning interferometry (VSI). Far from ...
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MAGNETIC ANOMALIES IN THE INTERIOR OF WESTERN SIBERIA AS POSSIBLE INDICATIONS OF ANCIENT SPREADING (1990)This paper presents a detailed analysis of the data from a high-accuracy large-scale aeromagnetic survey of interior areas of Western Siberia where geological and geophysical data suggests the presence of oceanic lithosphere ...
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(2001)All of the available data describing the Earth’s magnetic field in Northern, Western, and Eastern Europe (c. 3 × 106 data points) are compiled and presented at a scale of 1:20 400 000. The compilation meets two requirements ...
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(2001)Magnetic-fabric and other petrofabric anisotropies may be described by second-rank tensors represented by ellipsoids. For a homogeneous petrofabric that is adequately sampled, a stereoplot of the orientation-distribution ...
Now showing items 8445-8464 of 39195