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Геология России: Recent submissions
Now showing items 961-980 of 41109
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(2006)We explored the influence of small-scale spatial variation in soil moisture on CO2 fluxes in the high Arctic. Of five sites forming a hydrological gradient, CO2 was emitted from the three driest sites and only the wettest ...
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(2006)We present a general method to constrain planetary composition and thermal state from an inversion of long-period electromagnetic sounding data. As an example of our approach, we reexamine the problem of inverting lunar ...
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(2006)We address several current lunar problems. The data suggest that the Moon likely possesses an Fe-rich metallic core a few percent of lunar volume, although definitive proof is lacking. Refractory elements appear to be ...
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(2006)Calculations of isobaric batch, polybaric batch, and polybaric fractional melting have been carried out on a variety of proposed lunar and terrestrial source region compositions. Results show that magmas with a generally ...
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(2006)Rock-forming zeolites often exhibit complex solid solutions reflecting isomorphous substitutions between Si and Al in tetrahedral framework sites, between charge-balancing extraframework cations, and between water molecules ...
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(2006)Hydrological cycle is the perpetual movement of water throughout the various component of the global Earth's system. Focusing on the land surface component of this cycle, the determination of the succession of dry and humid ...
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(2006)Many mining-impacted streams in western Montana with pH near or above neutrality display large (up to 500%) diel cycles in dissolved Zn concentrations. The streams in question typically contain boulders coated with a thin ...
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WATER IN THE INTERLAYER REGION OF BIRNESSITE: IMPORTANCE IN CATION EXCHANGE AND STRUCTURAL STABILITY (2006)Birnessite is an important scavenger of trace metals in soils and aqueous environments. The basic birnessite-type structure consists of sheets of Mn octahedra separated by ~7 or ~10 Å ("buserite") interlayer regions filled ...
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(2006)The processes influencing the solubilization and observed mobility of Au in soil were studied using a combination of geochemical and microbiological techniques. In this study, we demonstrate for the first time that biotic ...
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(2006)The origin of continental flood basalts has been debated for decades. These eruptions often produce millions of cubic kilometers of basalt on timescales of only a million years. Although flood basalts are found in a variety ...
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(2006)Geothermal features in the Yellowstone National Park contain up to several milligram per liter of aqueous arsenic. Part of this arsenic is volatilized and released into the atmosphere. Total volatile arsenic concentrations ...
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(2006)The ultraviolet spectra of dilute, aqueous arsenic (III)-containing solutions have been measured from 25 to 300 °C at the saturated vapour pressure. From these measurements, the equilibrium constant was obtained for the ...
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(2006)We measured experimentally the chlorine isotope fractionation between coexisting vapor and liquid in the system H2O-NaCl. Experiments were performed between 23 and 28 MPa along the 400 °C isotherm and between 38 and 42 MPa ...
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(2006)In order to better understand anomalously low paleomagnetic inclinations in the Cretaceous rocks of central Asia, a combined geochronologic and paleomagnetic investigation has been performed on Cretaceous basalt sequences ...
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(2006)Numerous methane-emitting bottom features, such as seeps, methane clathrate hydrates (clathrates), and mud volcanoes, have been identified recently in the Black Sea. The fluxes of methane from these sources averaged over ...
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(2006)Recently published paleomagnetic data from the Faroe Islands and SE England have enabled a "hybrid" pole (72.0°N, 177.9°E, A95 = 7.9°) to be calculated for "stable" Eurasia ~ 55 Ma. It is somewhat different to previous ...
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(2006)Two sets of living oaks (Quercus R.) growing under different hydrological situations were sampled near Lac d'Annecy, France. The stable isotope composition of the latewood cellulose was analysed in terms of oxygen and ...
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(2006)The precise cause and timing of the Cretaceous-Paleocene (K-P) mass extinction 65 Ma ago remains a matter of debate. Many advocate that the extinction was caused by a meteorite impact at Chicxulub, Mexico, and a number of ...
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MAGMATIC ORIGIN OF LOW-CA OLIVINE IN SUBDUCTION-RELATED MAGMAS: CO-EXISTENCE OF CONTRASTING MAGMAS (2006)Unravelling the origin of different components contributing to subduction-related magmas is a prerequisite to understanding the sources and processes involved in their origins. Mafic, high-Ca subduction-related magmas from ...
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(2006)Unusually magnesian (Mg# ~76) basalts have been sampled from a small submarine volcano situated on the Mariana arc magmatic front. Total alkalis range from 1.7 to 1.94%, Al2O3 from 9.09 to 10.3% and CaO from 13.9 to 14.09%. ...
Now showing items 961-980 of 41109