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Browsing ELibrary by Title
Now showing items 1247-1266 of 21638
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(1998)Receiver-function methods utilize three-component teleseismic P coda to determine structure beneath seismographs. Most methods treat coda complexity as mode conversions and reflections off subhorizontal interfaces beneath ...
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(2001)Fluids are key in the process of eclogitization and delamination of crustal roots in collisional orogens, and this process is not solely constrained by pressure–temperature conditions. Partially eclogitized amphibolites, ...
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(2005)Arsenate, As(V), sorption onto synthetic iron(II) monosulfide, disordered mackinawite (FeS), is fast. As(V) sorption decreases above the point of zero surface charge of FeS and follows the pH-dependent concentration of ...
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(1988)In the Paren' volcanic field in the Evensk sector of the Okhotsk-Chukotka belt, lavas form small extrusions that complete the evolution of a volcanoplutonic rock group of common origin, the derivative of latite-andesite ...
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(2005)Arsenic-rich scales are widely associated with geothermal fields and constitute a potential hazard to human health. Such arsenic has hitherto been reported to be almost exclusively hosted by sulphide or oxide phases or ...
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(1999)The rates of the oxidation of As(iii) with H2O2 were measured in NaCl solutions as a function of pH (7.5-10.3), temperature (10-50C) and ionic strength (I = 0.01-4). The rate of the oxidation of As(iii) with H2O2 can be ...
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(2003)Arsenic is a toxic metalloid whose mobility and availability are largely controlled by sorption on sulfide minerals in anoxic environments. Accordingly, we investigated reactions of As(III) with iron sulfide (FeS) and ...
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(2004)Articulated palaeoscolecid sclerite arrays from the Lower Cambrian of eastern Siberia. Acta Geologica Polonica, 54, (1), 1-22. Warszawa. Phosphatized palaeoscolecid cuticle fragments of Palaeoscolex lubovae sp. nov., P. ...
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(2001)Artificial maturation experiments on one humic coal and one torbanite were performed using a closed-system pyrolysis. The samples were heated isothermally for 24 h at temperatures between 200°C and 800°C. Mobile products ...
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(2001)Data on the abundance, distribution, and speciation of artificial radionuclides and some chemical elements in the water, paniculate matter, and bottom sediments of the cold storage pools of PO Mayak are reported. The trends ...
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(2002)Artificial recharge of groundwater is achieved by putting surface water in basins, furrows, ditches, or other facilities where it infiltrates into the soil and moves downward to recharge aquifers. Artificial recharge is ...
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(2004)The Middle Eocene fauna of the Khaichin-Ula II locality is shown to include four artiodactyl species assigned to three genera of three families of the suborder Suiformes: Helohyidae, Dichobunidae, and Raoellidae. Three ...
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(1995)Experimental brackets on As-Sb partitioning between polybasite-pearceite {Pbp; (Cu, Ag)16(Sb, As)2S11} and pyrargyrite-proustite {Ppr; (Cu, Ag)3(Sb, As)S3}, and between pyrargyrite-proustite, and miargyrite and smithite ...
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(2000)A database of 86 Permian brachiopod families, 411 genera and 1931 species of the Asian-western Pacific region was analysed using a range of statistical measures to unravel the changing patterns of diversity, origination ...
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(1997)An age of 250 (+/-70) yr is estimated for a specimen of the colonial anemone Gerardia collected alive from 630 m depth off the Bahamas. This age is calculated from (1) the difference in aspartic acid (Asp) racemization ...
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(1990)Intrastratal combustion is a heat treatment of petroliferous strats in order to enhance the oil recovery from them. The heat is produced in the pay stratum itself, by combustion of some of its oil. An oxidizing agent ...
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(2002)The Marmara Sea is situated between the world's largest permanently anoxic basin, the Black Sea, and an enclosed marginal sea, the Aegean Sea, which experienced quasi-periodic sapropel deposition since Miocene time. It is ...
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(2004)A suite of nickel, cobalt, iron, copper, and zinc containing sulfides are assayed for the promotion of a model carbon fixation reaction with relevance to local reducing environments of the early Earth. The assay tests the ...
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(2001)In the system CaO-MgO-FeO-Fe2O3-TiO2-SiO2, equilibria among titanite, pyroxene(s), olivine, spinel phase, ilmenite, and quartz constrain fo2, T, aSiO2, aTiO2, aFe, and the compositional variables, μTiFe2+Fe3+-2, μCa(Mg,Fe)-1, ...
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(2004)Laboratory experiments on the branching, symbiont-bearing coral genus Porites and Acropora have been carried out to determine the dependence of the skeletal boron isotopic composition (δ11B) on the pH of seawater. The ...
Now showing items 1247-1266 of 21638