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Browsing ELibrary by Title
Now showing items 12486-12505 of 21936
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(1999)Many sediment and soil systems have become significantly contaminated with cadmium, and earth scientists are now required to make increasingly accurate predictions of the risks that this contamination poses. This necessitates ...
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(1990)The Baikal is a deep long and narrow basin in East Siberia which follows a huge fault zone adjoining the Siberian Platform. The basin was formed by rapid subsidence of continental crust during the pas 3–4 Ma. It is bounded ...
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(2004)Melt extraction is a process with a length scale that spans many orders of magnitude. Studies of residual migmatites and granulites suggest that melt has migrated from grain boundaries to networks of leucosome-filled ...
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(1996)Rutherford backscattering spectroscopy, in conjunction with optical and scanning electron microscopy, has been used to characterize the oxidation process in a homogeneous, well-annealed glass prepared from a nepheline-normative ...
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(2000)Active participation of dispersed and colloidal systems in hypergene and hydrothermal processes favors supramolecular crystallization during mineral formation. We discuss the mechanism of this crystallization by the example ...
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(2003)A theory of a volcanic eruption as a steady magma flow from a magma chamber to the surface is described. Magma is considered as a two-component two-phase medium and magma flow is steady, one-dimensional and isothermal. ...
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(2001)Steady state basaltic glass dissolution rates were measured as a function of aqueous aluminum, silica, and oxalic acid concentration at 25° C and pH 3 and 11. All rates were measured in mixed flow reactors, performed in ...
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(2006)The molecular-level processes that control green rust sodium sulphate (GRNa, SO4) reaction with chromate were studied using high-resolution techniques. Changes in solid morphology, structure and composition were observed ...
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(1987)The 10012 m.y., 25 km diameter Boltysh impact crater was formed in Precambrian granites and granite gneisses of the Ukrainian Shield. The crater deposits have undergone minimal post-impact erosion and it is possible to ...
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THE MESOPROTEROZOIC BASEMENT IN THE SOUTHERN BALTIC SEA: INSIGHTS FROM THE G 14-1 OFF-SHORE BOREHOLE (2004)The continuation of the Mesoproterozoic basement of the southern Fennoscandian Shield is documented in the G 14–1 off-shore borehole, northeast of the island of Rgen, where crystalline rocks of monzogranitic composition ...
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(2005)The purpose of this paper is to consider the behavior of the geomagnetic field in the vicinity of the Mesozoic-Cenozoic (Mz-Kz) boundary, in particular, of the paleointensity and polarity of the field, the frequency of ...
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(1996)The effects of a strong non-linear thermo-kinetic coupling in the olivine-spinel transition are investigated with a 2D model for fast-subducting slabs. The thermo-kinetic coupling problem is solved in the Lagrangian framework ...
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(2002)Haktanir originally introduced the method of self-determined probability weighted moments as an extension of the traditional method of probability weighted moments for parameter estimation. While this method possesses many ...
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(2004)Results of multidisciplinary study in the Upper Cretaceous reference section and characteristics of the Mezino-Lapshinovka Formation stratotype are presented. The late Santonian age of the formation is substantiated based ...
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THE MID-CRETACEOUS WATER BEARER: ISOTOPE MASS BALANCE QUANTIFICATION OF THE ALBIAN HYDROLOGIC CYCLE (2002)A latitudinal gradient in meteoric δ18O compositions compiled from paleosol sphaerosiderites throughout the Cretaceous Western Interior Basin (KWIB) (34-75°N paleolatitude) exhibits a steeper, more depleted trend than ...
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(1997)The Mid-Pleistocene Climate Transition (MPT) is the complex climatic change which brought the Late Pleistocene ice ages. We explore the MPT in the time and frequency domains by new methods of time series analysis. ...
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(2004)A Late Ordovician episode of remarkable biotic, climatic, sea level and facies changes, named here as the Middle Caradoc Facies and Faunal Turnover, took place in the Baltoscandian area. This paper presents an integrated ...
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(1997)The Ludfordian sections of shallow-water carbonates, which are exposed in the Urals, Arctic islands, and northeastern part of the East European platform, yielded diverse brachiopod assemblages (BA-2) with dominant atrypids ...
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(2004)The Bashkir Meganticlinorium (BM) is on the western slope of the southern Urals. The Lower and Middle Riphean sedimentary sequences of the BM host very large stratiform magnesite and siderite deposits, barite, lead, and ...
Now showing items 12486-12505 of 21936