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Browsing Геология России by Title
Now showing items 2775-2794 of 39195
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(PANGAEA, 2004-07-12)Composition and distribution.of ice-rafted coarse debris from the Kara Sea bottom were investigated. This material was obtained on 42 stations in Cruise 49 of R/V Dmitry Mendeleev by Sigsby trawls, box corers, grabs, and ...
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(2002)Cabriite, ideally Pd 2SnCu, has been reported from five localities worldwide, and was first described in the Noril'sk-Talnakh mining district of northwestern Russia. We summarize previous research on cabriite and provide ...
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Coastal erosion dynamics on the permafrost-dominated Bykovsky Peninsula, north Siberia, 1951-2006. (PANGAEA, 2011-04-10)This study investigates the rate of erosion during the 1951-2006 period on the Bykovsky Peninsula, located north-east of the harbour town of Tiksi, north Siberia. Its coastline, which is characterized by the presence of ...
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(PANGAEA, 2019-09-04)Long-term observations of coastal retreat rates at the Laptev Sea key monitoring sites.
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(2000)This article presents a comparison of sediment input by rivers and by coastal erosion into both the Laptev Sea and the Canadian Beaufort Sea (CBS). New data on coastal erosion in the Laptev Sea, which are based on field ...
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(2001)The predicted rise in sea level due to global warming has given rise to much speculation as to the impact on erosion and accretion rates at the coast as well as increases in hazards to coastal users. This paper focuses on ...
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(2014)Many coasts feature sequences of Quaternary and Neogene shorelines that are shaped by a combination of sealevel oscillations and tectonics.We compiled a global synthesis of sea-level changes for the following highstands: ...
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(2003)Irrespective of geologic age, Phanerozoic coated phosphate grains deposited beneath productive surface waters in organic-rich paleoenvironments are of only two types. Unconformity-bounded grains contain internal discordances ...
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(1988)While studying the supracrustal Pechenga complex, we found Lower Proterozoic microfossils in our petrographic thin sections. The rocks containing these organic remains make up a two-meter unit of microquartzite, altered ...
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(2004)Biomineralisation can only be understood as an interplay between organic and mineral phases. With this objective, we conducted an investigation of coccoliths using atomic force microscopy (AFM), an ultra-high resolution ...
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(2000)Short-period, three-component recordings from peaceful nuclear explo-sions (PNE) of the profile QUARTZ, located in Russia, are used to constrain the nature of the coda of PNE arrivals. In particular, we examine the unusually ...
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(2002)Coesite exsolved from supersilicic titanite was discovered in an impure calcite marble at Kumdykol in the Kokchetav UHP (ultrahigh-pressure) metamorphic terrane, northern Kazakhstan. This impure marble consists mainly of ...
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(2012)We present new, whole-rock major and trace element chemistry, including rare earth elements (REE), platinum-group elements (PGE), and Re–Os isotope data from the upper mantle peridotites of a Cretaceous Neo-Tethyan ophiolite ...
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(1988)The Quaternary Shavaryn-Tsaram volcano (central Mongolia) is one of the richest known repositories of mantle nodules and megacrystals. Magnesial biotite, rhombic pyroxene, pyrope, sanidine and ilmenite have been found in ...
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(2005)A Late Paleocene (~60 Ma BP) lateritic soil from Northern Ireland (the Antrim paleosol, herein referred to as Nire) contains coexisting goethite, gibbsite, phyllosilicate, and hematite. The Fe(III) oxides exhibit pisolitic ...
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(2004)Syngenetic garnet of eclogitic/pyroxenitic composition included in a polycrystalline diamond aggregate from the Venetia kimberlite, Limpopo Belt, South Africa shows multiple inclusions of spherules consisting of 615vol% ...
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(1988)The problem of correct addition of diffracted and scattered fields generally arises in problems of light scattering by large crystals. It is of particular importance in the case of crystals with plane-parallel faces ...
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(2001)Recent studies have shown that interference plays an important role in various phenomena observed for waves propagating through random media. Among these phenomena, the so-called cone of coherent backscattering has received ...
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(2004)The coherent-state transform (CST) is a Gaussian-windowed Fourier transform and compared with the usual plane wave expansion of seismic wavefields it provides an overcomplete basis of partial waves. These overcomplete ...
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(2003)Two-dimensional convection models with moving continents show that continents profoundly affect the pattern of mantle convection. If the continents are wider than the wavelength of the con-vection cells (~3000 km, the ...
Now showing items 2775-2794 of 39195