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Геология России: Recent submissions
Now showing items 981-1000 of 41109
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(2006)We report new He abundance and isotope measurements of phenocryst phases in volcanic tephra and lavas from the Nicaragua-Costa Rica section of the Central American arc, where significant variations in crustal thickness ...
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(2006)The pure synthetic end-member of antigorite was studied by in-situ Raman spectroscopy in a diamond anvil cell. It can be metastably compressed up to 10 GPa at room temperature without occurrence of phase transition or ...
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(2006)The geochemical characteristics of mildly alkalic basalts (24-25 Ma) erupted in the southeastern Kerguelen Archipelago are considered to represent the best estimate for the composition of the enriched Kerguelen plume ...
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(2006)The 2800-2700 Ma Taishan greenstone belt, North China Craton, consists of an association of komatiites, pillow basalts, banded iron formations, conglomerates, and greywacke sandstones. The belt was intruded by high-Al ...
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(2006)A series of 1 atm experiments has been performed to test the influence of iron content and oxidation state on the saturation of phosphate minerals in magmatic systems. Four bulk compositions of different iron content have ...
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(2006)Synchrotron-based X-ray radiation microfluorescence (μ-SXRF) and micro-focused and powder extended X-ray absorption fine structure (EXAFS) spectroscopy measurements, combined with desorption experiments and thermodynamic ...
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(2006)Chemical diffusion of Zr under anhydrous, pO2-buffered conditions has been measured in natural titanite. The source of diffusant was either zircon powder or a ZrO2-Al2 O3-titanite mixture. Experiments were run in sealed ...
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SUBGLACIAL GEOLOGY IN COATS LAND, EAST ANTARCTICA, REVEALED BY AIRBORNE MAGNETICS AND RADAR SOUNDING (2006)During the austral summer of 2001/02 five thousand line kilometres of airborne radio echo sounding and aeromagnetic data were collected in the region of three tributaries of Slessor Glacier, East Antarctica, which drains ...
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(2006)The rocks of the Obudu Plateau range from high-grade metagreywacke-pelite sequence to metaigneous (granitic to tholeiitic) and polymagmatic (calc-alkaline granitic to olivine tholeiitic) igneous rocks. Several co-variance ...
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(2006)Zinc uptake in suspensions (≤3.7 g L-1) of MX80 montmorillonite was investigated at pH 4.0 and 7.3, a total Zn concentration ([Zn]total) of 500 μM, and dissolved Si concentrations ([Si]aq) of ~70 and ~500 μM in 0.5 M NaCl, ...
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(2006)Peraluminous granitoids provide critical insight as to the amount and kinds of supracrustal material recycled in the central Sierra Nevada batholith, California. Major element concentrations indicate Sierran peraluminous ...
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(2006)The isotopic compositions of Os, Nd, and Sr, as well as major elements of dunites, spinel lherzolites, websterite, and serpentinite from the Nikubuchi ultramafic cumulous complex in the Sambagawa metamorphic belt (SMB) ...
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(2006)In this paper, the long-term mean annual groundwater recharge of Taiwan is estimated with the help of a water-balance approach coupled with the base-flow-record estimation and stable-base-flow analysis. Long-term mean ...
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(2006)Liquefaction of saturated soils and sediments documented during earthquakes shows an empirical relation log Rmax = 2.05 (± 0.10) + 0.45 M, where Rmax is the liquefaction limit in meters (i.e., the maximum distance from ...
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(2006)Based on discrete samples, we report new high-resolution records of the ~ 185 kyr Iceland Basin (IB) geomagnetic excursion from Ocean Drilling Project (ODP) Site 1063 on the Bermuda Rise (sedimentation rate 32 cm kyr- 1) ...
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(2006)The shake map methodology for seismic hazard studies has been applied to a sector of Bucharest, the capital of Romania. Geological and geotechnical profiles are known for this region. We have chosen as seismic input the ...
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(2006)Component natural remanent magnetizations derived from u-channel and 1-cm3 discrete samples from ODP Site 919 (Irminger Basin) indicate the existence of four intervals of negative inclinations in the upper Brunhes Chronozone. ...
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(2006)Investigations on how desiccation changes sorption of organic compounds by salt marsh sediments provide insight into the physical and chemical properties of these wide-spread coastal sediments. We measured sorption of ...
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(2006)Molecular dynamics computer simulations of the molecular structure, diffusive dynamics and hydration energetics of water adsorbed on (001) surfaces of brucite Mg(OH)2, gibbsite Al(OH)3, hydrotalcite Mg2Al(OH)6Cl ·2H2O, ...
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(2006)In the Harz Mountains (Germany), three Late Devonian sections, Aeketal, Hühnertal and Kellwassertal, were analyzed for major- and trace-element concentration. The inorganic geochemical data were used to determine the ...
Now showing items 981-1000 of 41109