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Browsing ELibrary by Title
Now showing items 12098-12117 of 21821
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(2004)In the Russian Northeast, parkerite has been detected in ores of the Teutedzhak low-sulfide goldrare metal-quartz deposit located in the Ten'kin district of the Magadan region. The Teutedzhak ore field is confined to the ...
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(2003)The first Cretaceous find of Gasleromycetcs comes from the Maastrichtian dinosaur beds of the Nemegt Basin, southern Gobi. A small group of fruiting bodies was found on the ferruginous surface of light gray clays containing ...
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(2004)Remains of armored dinosaurs (Thyreophora) from the Late Cretaceous, Early Maastrichtian (Udurchukan Formation) deposits of the Kundur locality in the Amur Region, are described. The material includes a single osteodermal ...
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(2004)The paper considers the first discovered larval shells of Rhynchonelliformea brachiopods from the Lower Ordovician of the Leningrad region Casts of larval shells on the pedicle and brachial valves are characterized by a ...
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(2003)A new rhyncholite species, Akidocheilus (Akidocheilus) costatisulcatus, is described from the Biyuk-Yanyshar Ridge. This is the first record of rhyncholites from the Lower Callovian of the Crimean Mountains.
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(2004)The first fossil ribbonfish, Trachipterusmauritanicus sp. nov., based on a single specimen, is described from Sidi-Brahim, an Upper Miocene (Messinian) locality situated in the central sector of the Chelif Basin, northwestern ...
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(2003)Characteristic features of the initial evolutionary stage of planktonic foraminifers are considered. It is shown that, in the Early Jurassic, they display a high taxonomic and morphological diversity and are represented ...
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(2004)Hydrothermal synthesis produced the new compound SrCo2(AsO4)(AsO3OH)(OH)(H2O). The compound belongs to the tsumcorite group (natural and synthetic compounds with the general formula M(1)M(2)2(XO4)2(H2O,OH)2; M(1)1+,2+,3+ ...
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(2004)A Late Tithonian ammonite, Oloriziceras schneidi Tavera, 1985, is recorded for the first time in the Feodosiya section of the Tithonian - Berriasian boundary beds of Eastern Crimea
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(2001)A new soleid flatfish, Buglossidium apsheronskiense sp. nov. (Pleuronectiformes), from the Upper Maikopian (Lower Miocene) of the Northern Caucasus (Apsheronsk District) is described. This is the first find- ing of the ...
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(1998)Constraints placed on chondrule formation have largely been generated from experiments which use a long duration, below liquidus isothermal melting (minutes to hours) rather than a short duration, above liquidus flash ...
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(1999)Estimates of effective elastic thickness (Te), a measure of the strength of the plate, have shown that older and cool cratonic regions are characterised by a stronger lithosphere (higher Te values) than areas which have ...
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(2001)The strong negative correlation between the temperatures and melt H2O contents of granitoid magmas implies that the crustal melting reactions that produced the magmas were strongly buffered, with T and aH2O co-varying ...
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(2002)Fluid-absent melting experiments on a zoisite- and phengite-bearing eclogite (omphacite, garnet, quartz, kyanite, zoisite, phengite and rutile) were performed to constrain the melting relations of these hydrous phases in ...
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(1998)The response of continental weathering rates to changing climate and atmospheric PCO2 is of considerable importance both to the interpretation of the geological sedimentary record and to predictions of the effects of future ...
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(1998)Fundamental to the global carbon cycle over geologic time scales is the control of atmospheric CO2 by aluminosilicate weathering. Much of the information on the rates of this process comes from rivers in the tropics and ...
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(1999)The conventional view of the climatic influence on weathering is that weathering rates are strongly temperature-dependent due to the near-exponential relationship (Clausius-Clapeyron) between temperature and the saturation ...
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(2004)Experiments were conducted on gibbsite to determine whether oxygen-isotope exchange rates at hydroxyl bridges (μ2-OH) on the basal sheet exhibit similar reactivity trends as in large aluminum polyoxocations, for which ...
Now showing items 12098-12117 of 21821