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Browsing ELibrary by Title
Now showing items 5075-5094 of 21701
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(1988)There has recently been a great increase in interest in the origin of global relief of the earth and in elucidating the patterns of its development. In the present paper we attempt to approach the problem from an energy ...
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(2002)We present a new worldwide $1/16°× 1/16°$ map of seafloor topography computed from an iterative inversion combining altimetry measurements of the marine geoid and shipboard echo soundings from the global National Geophysical ...
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(2002)We infer the fine structure of a sub-Moho boundary layer (SMBL) at the top of the lithospheric mantle from high-resolution seismic observations of Peaceful Nuclear Explosions (PNE) on superlong-range profiles in Russia. ...
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(1999)The main problem associated with the study of silicate weathering using river dissolved load is that the main control of solute chemistry is lithology and that all rivers are influenced by carbonate and evaporite weathering. ...
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(2002)The experimentally determined directions of the maximum horizontal compressive stress SH, max in the western European stress province (WESP) of the West European platform are mostly oriented northwest with an average azimuth ...
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(1989)Pangea, the Earth's youngest single supercontinent, broke up 180 million years ago. Tectonic plates were subsequently formed by dispersal of the continental fragments and accretion of new oceanic lithosphere. The configurations ...
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(2001)Convergent margin processes play an important role in the distribution of terrestrial volatile species. During subduction processes volatiles are filtered from the subducting package and are restricted to return to the ...
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GLOBAL-SCALE INTERACTIONS BETWEEN THE SOLID EARTH AND ITS FLUID ENVELOPES AT THE SEASONAL TIME SCALE (1999)Changes in the mass distribution inside the surface fluid envelopes in response to climate changes affect the Earth by changing its gravitational field, its rotation and the position of its centre of mass. At subdecadal ...
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(1999)A new genus and species Cretasalia tsybini (Gobiatidae, Anura) from the Late Cretaceous (Campanian-Maastrichtian) locality Khermeen-Tsav (South Gobi Region, Mongolia) is described from a skull and part of the skeleton. ...
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(1999)A new genus Gobicar with a single species, G. ponomarenkoi from the Shar-Teg locality is described. A combination of its characters indicates that it is the most primitive member of the Eccoptarthridae.
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(2002)GOCE (gravity field and steady-state ocean circulation explorer) will provide a global model of the Earth's gravity field with high spatial resolution and high accuracy. The gravity measurements are derived from a combination ...
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(2004)Pedogenic goethites in each of two Early Permian paleosols appear to record mixing of two isotopically distinct CO2 components—atmospheric CO2 and CO2 from in situ oxidation of organic matter. The δ13C values measured for ...
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(1988)We experimentally investigated the process of gold precipitation on arsenopyrite - its kinetics and temperature dependence, S/As ratio and grain size. To clarify the role of arsenic, we studied its precipitation in the ...
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(2003)World gold production increased during the last century by more than five times, from approximately 500 to 2544 t in 2000. The shares of gold-only and complex gold-bearing deposits in these values are almost equal. The ...
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(1996)The interaction of gold hydroxo-chloro complexes with iron oxides (ferrihydrites, goethites) during coprecipitation experiments is investigated. Chemical analyses of solids and solutions are coupled with a detailed ...
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(2004)The Uzelginsk deposit in the southern Urals, in Russia, is an example of a weakly altered classical massive sulfide deposit of the Uralian type. Pyritic Cu-Zn ore contains gold in two main modes: so-called "invisible" gold ...
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(1997)Gold and silver accompany the base-metal mineralization developed in the mantle magnesian basalts erupted during the great Tolbachik fissure eruptions of 1975-1976 and the arsenic-antimony-mercury minerals deposited in ...
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(1988)We investigated the gold distribution in reindeer moss growing over gold fields and shows of the gold-quartz and gold-sulfide associations. The gold in the plant ash was determined by means of a spectroscope with a detection ...
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(2001)New data are presented on the gold content of the eruptive and posteruptive exhalations of highly varying temperatures. Deposits that accumulated around fumarole vents show gold concentrations ranging from 0.05 to 2800 ppm ...
Now showing items 5075-5094 of 21701