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ELibrary: Recent submissions
Now showing items 361-380 of 24608
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(2006)We apply a limited-memory quasi-Newton (QN) method to the 1D magnetotelluric (MT) inverse problem. Using this method we invert a realistic synthetic MT impedance data set calculated for a layered earth model. The calculation ...
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(2006)Zeolites are represented by clinoptilolite (from 15-20 to 30-32%) in Paleogene rocks of the southern Russian Platform. Zeolite-bearing complexes formed under coastal-marine conditions of the platform type. Clinoptilolite, ...
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(2006)Electromagnetic fluctuations in the ocean have external sources like ionospheric-magnetospheric current systems, and purely internal oceanic sources associated with interaction between water velocity fields and the geomagnetic ...
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(2006)Analysis of vibroseis data shows that harmonic distortion in the ground-force signal may exceed the primary distortions in the hydraulic system. This can be explained by the baseplate-ground contact nonlinearity created ...
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(2006)In year 2000, a ship-based expedition carried out a ca. 500-km-long geophysical profile ('Arctic-2000') across the Mendeleev Ridge at 82°N, from the Podvodnikov Basin to the Mendeleev Basin. A crustal-scale refraction ...
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(2006)Strontium and and carbon isotopic data from amphibolite-facies marbles of the Falkenes formation, Sørøy succession (structurally upper Kalak Nappe Complex) in West Finnmark, northern Norway, indicate that the marbles were ...
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(2006)Numerical models are presented that simulate several active tectonic processes. These models include a continent that is thermally and mechanically coupled with viscous mantle flow. The assumption of rigid continents allows ...
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(2006)A new method is proposed for calculating equilibria in mixed multicomponent systems H2O-nonpolar gas at high temperatures and pressures. The method is based on calculation of electrostatic interactions between a solute ...
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(2006)By analogy with other metallogenic belts of the Circum-Pacific ring, the metallogenic belts in the Northeast of Russia are promising for discovery of large and superlarge porphyry-type Au-Cu-Mo deposits. The spatial ...
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(2006)Processes of authigenic manganese ore formation in sediments of the northern equatorial Pacific are considered on the basis of study of the surface layer (<2 mm) of ferromanganese nodule and four micronodule size fractions ...
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(2006)The distribution of noble metals has been studied in ores and sulfide concentrates from the Gai, Uchaly, Uzel'ga, Aleksandrinsky, Degtyarsk, and Saf'yanovka deposits. The ores, technological products, and hand-picked ...
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(2006)In the austral summer seasons 2001/02 and 2002/03, Global Positioning System (GPS) data were collected in the vicinity of Vostok Station to determine ice flow velocities over Lake Vostok. Ten GPS sites are located within ...
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(2006)New palaeomagnetic and geochronological data from mafic dykes emplaced into the basement of the Siberian Craton on the southwestern coast of the Baikal Lake are present. The concordant zircon U-Pb SHRIMP age of these dykes ...
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(2006)The Altaid orogen was formed by aggregation of Paleozoic subduction-accretion complexes and Precambrian basement blocks between the Late Proterozoic and the Early Mesozoic. Because the Altaids are the site of abundant ...
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(2006)The section of the Angara Formation (upper portion of Lower Cambrian) is composed of a complex combination of dolomites, anhydrites, marlstones, and salinastones. The occurrence of solution breccia, various types of ...
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(2006)The grain-size composition of nonlithified sediments in the Indian, Pacific, and Atlantic oceans is studied. Grain-size features of the major lithogenetic types of deep-water sediments are determined. The genetic interpretation ...
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(2006)Results of the study of a new Ge-bearing area of the Pavlovka brown coal deposit are presented. Ge is accumulated in bed III2 lying at the bottom of the Late Paleogene-Early Neogene coal-bearing sequence adjacent to the ...
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(2006)The distribution of gold in high-temperature fumarole gases of the Kudryavy volcano (Kurile Islands) was measured for gas, gas condensate, natural fumarolic sublimates, and precipitates in silica tubes from vents with ...
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(2006)Nodules of various compositions, including ferromanganese nodules, have been found in bottom sediments of an artificial reservoir in the central Altai Territory. The nodules were formed in the alkaline environment against ...
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(2006)Seismic reflection profiles, bathymetric and magnetic data collected along and across the continental margin of the Bellingshausen Sea provide new constraints and interpretations of the oceanic basement structure and ...
Now showing items 361-380 of 24608