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Геология России: Recent submissions
Now showing items 2321-2340 of 43490
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(2006)Monohydrocalcite (MHC) has previously been known only from fresh-water and terrestrial environments. However, as documented in the present paper, MHC is a common mineral (up to 55%) in debris fragments from submarine ikaite ...
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(2006)This discussion paper contains the data about the active volcanoes and thermal springs in the Armenian highland, and has a aim to correct the erroneous information about active volcanism of Armenian highland in two articles ...
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(2006)The emplacement of the Manaslu leucogranite body (Nepal, Himalaya) has been modelled as the accretion of successive sills. The leucogranite is characterized by isotopic heterogeneities suggesting limited magma convection, ...
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(2006)We examined detrital chromian spinels, in recent river beds, derived from the mantle section to determine whether the mantle peridotite of the northern Oman ophiolite is of oceanic or arc origin. The Cr-number (=Cr/(Cr + ...
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(2006)We present a new approach, based on neural networks, to predict the thermal conductivity of sedimentary rocks from a set of geophysical well logs. This method is calibrated on Ocean Drilling Program (ODP) data, which provide ...
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(2006)The distribution of boron has been studied in rocks and minerals of the Ilímaussaq complex, South Greenland, using optical emission spectrometry. In the silica-undersaturated rocks of intrusive phases 1 and 3, average B ...
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(2006)Kyanite-phengite eclogites can yield robust P-T equilibration conditions that do not depend on the ferrous/ferric ratios of the constituent minerals. Even rocks lacking kyanite or phengite - for which the ferrous/ferric ...
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(2006)Mantle xenoliths from Fuerteventura (spinel-bearing harzburgites, dunites, and rare lherzolites and wehrlites) in the easternmost part of the Canary Islands chain, are highly deformed and show a wide range in textures from ...
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(2006)Garnet-bearing peridotitic rocks closely associated with eclogite within the Tromsø Nappe of the northern Scandinavian Caledonides show good evidence for prograde metamorphism. Early stages are recognized as inclusions of ...
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(2006)In the French sedimentary basins, widespread alluvial deposits sealing narrow Permian troughs are referred to as 'Buntsandstein'. An Early Triassic age is generally put forward despite a lack of any Scythian biochronological ...
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(2006)The Late Permian to Early Triassic (P/T) transition represents one of the most important Phanerozoic mass extinction episodes. Data from this transitional period are very scarce in continental basins, and reliable correlation ...
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(2006)The analysis of earthquake-related signals in hydrochemical time series is still a challenging task. Mostly it is unclear how the geometrical and energetic distribution of earthquakes is influencing variation in the ...
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(2006)The Sorachi Group, composed of Upper Jurassic ophiolite and Lower Cretaceous island-arc volcano-sedimentary cover, provides a record of Late Jurassic-Early Cretaceous sedimentation and volcanism in an island-arc setting ...
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(2006)Devana Chasma is a rift system on Venus formed in association with the Beta Regio and Phoebe Regio volcanic highlands, which are interpreted as mantle plumes. We present a new analysis of a 2500-km-long segment of Devana. ...
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(2006)The Kurosegawa Terrane in SW Japan is a fault zone that divides the Chichibu Composite Terrane into the Northern Chichibu and Southern Chichibu Terranes. It contains exotic tectonic blocks including granitoids, variously ...
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(2006)While soil is normally studied as the outcome of natural geological and chemical processes, soil research by archaeologists, geographers and other social scientists focuses on the human behavioural dimensions of soil ...
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(2006)In the middle Miocene (Badenian), within sulfate evaporites formed in the northern Carpathian Foredeep basin of Poland, Ukraine, and the Czech Republic, the apices of the primary, bottom-grown gypsum crystals (selenites) ...
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(2006)The 40-km-wide Araguainha impact structure in central Brazil provides extensive out crops to study the structural evolution of all parts of a complex crater, including the central uplift, annular trough, and crater rim. ...
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(2006)X-ray fluorescence (XRF) core scanning provides rapid high-resolution (down to 1 mm) records of chemical composition on split sediment cores. The measurements are non-destructive and require very limited sample preparation. ...
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(2006)In 2002, high-resolution sidescan sonar images of a mound area at the SW Rockall Trough margin were recorded with the TOBI deep towed sidescan sonar. Processed TOBI images with a pixel resolution of 6 m provide a unique ...
Now showing items 2321-2340 of 43490