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Browsing ELibrary by Title
Now showing items 2555-2574 of 21934
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(2004)The marine sedimentary successions of Barremian age yield, both in northwest Europe and on the Russian Platform, diverse and abundant belemnite faunas. These include the genera Praeoxyteuthis, Aulacoteuthis and Oxyteuthis ...
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(1997)Detailed Paleogene stratigraphy is based nowadays on the zonal schemes of different microfossil groups. The specific character of their development and the use of microphytofossil zonations in the regional stratigraphy of ...
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(1998)The analyzed distribution ranges of tetrapods, ostracods, megaspores, and other fossils were used, with due regard for the facial dependence and phylomorphogenetic lineage, to resolve correlation problems concerning Triassic ...
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(2003)Composition and structure of the Upper Neopleistocene alluvial and lacustrine sections in the southern trans-Urals region are discussed. Sections of the Kamyshlov alluvial complex (Streletskoe, Vvedenskoe, Verkhnyaya ...
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(1999)The Upper Mesozoic deposits of the northern and southern parts of the Korean Peninsula significantly differ from each other. The Upper Jurassic-Neocomian deposits of North Korea are represented by the differentiated volcanics ...
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(1997)The correlation of marine and terrestrial deposits is one of the most difficult problems of stratigraphy. The Volga-Urals region compriseś stratotypes of the Upper Permian stages (Ufimian, Kazanian, Tatarian). A thorough ...
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(1988)The paper first discusses the two independent methods of directly determining the changes in a physical variable with depth in the interior of the earth, namely seismic and electromagnetic sounding. It then considers the ...
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(2001)The main goal of this study is to revise the correlation algorithm for estimating parameters of the revised Helgeson-Kirkham-Flowers (HKF) model for aqueous nonelectrolyte solutes. The basis for the revision is the analysis ...
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(2003)Geochemical as well as multivariate statistical analyses (PCA) were carried out on 20 crude oil samples from ‘Middle’ Pliocene Production Series (MPPS) of Guneshli-Chirag-Azeri (GCA), Bahar, and Gum Adasi fields in the ...
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(2003)About the book: Humans have long marvelled at (and feared) the odorous and colourful manifestations of volcanic emissions, and, in some cases, have harnessed them for their economic value. The degassing process responsible ...
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(1997)The major-element composition of Mid-Ocean Ridge basalts (MORB) shows geochemical variations controlled by the temperature, pressure and source composition produced by convection in the mantle beneath the spreading centers. ...
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(2002)To understand compositional variation in igneous biotite, full analyses of a suite of biotites of variable composition from volcanic and xenolith parageneses have been completed. Major and minor elements were determined ...
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(1997)The analysis of Permian biotic and abiotic events has revealed a series of contrasting global biostratigraphic levels, to which significant changes in faunal assemblages are confined. The most important among them - the ...
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(1996)Owing to an error in a computer program, some of the LA—ICP—MS data for yttrium presented in Tables 3, 4, 5, 6, 12 and 13 of Bea (1996) are incorrect. The following changes should be made:
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CORUNDUM SOLUBILITY AND ALUMINUM SPECIATION IN KOH AQUEOUS SOLUTIONS AT 400°C FROM 0.5 TO 2.0 KBAR (1996)Corundum solubility has been measured in KOH aqueous solutions under supercritical conditions (400°C, from 0.5 to 2 kbar). The investigated concentration range (0.001 < mKOH < 0.1 mol/kg H2O) allowed to vary the species ...
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(1998)We investigate the dynamics of rupture at low-stress level. We show that one main difference between the dynamics of high- and low-stress events is the amount of coseismic temporal rake rotation occurring at given points ...
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(1998)We report the isotopic abundances of He, Ne, and Ar of four chondrites that fell in China, Jiange (H5), Juancheng (H5), Yanzhuang (H6), and Bo Xian (LL4), of Kagarlyk (L6) fallen in Russia, of Kress (L6) and Hunter (LL6) ...
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(2004)The possible existence of a positron radiation belt in the inner magnetosphere of the Earth, its space localization, flux and energy distribution and the ratio of e+/e- flux are considered. We suggest for the positron ...
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(2000)Excesses and deficiencies in 182W in meteorites and lunar samples relative to the terrestrial 182W atomic abundance have been assigned to the decay of 182Hf (t1/2=9 Ma) and have been used to date metal-silicate fractionation ...
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(1996)The density of the Earth's core (32.5% of the mass of the Earth) is about 8% less than that of pure metallic Fe under similar P, T conditions, requiring the presence of a substantial amount of a light element or light ...
Now showing items 2555-2574 of 21934