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Browsing ELibrary by Title
Now showing items 4480-4499 of 21638
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(2003)A huge fluorite deposit at Voznesenka in the Khanka massif, Far East Russia is concluded to have formed at ca. 450 Ma in Late Ordovician time based on the K-Ar ages for Li-micas in the fluorite ore and greisenized leucogranite ...
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(2001)The article discusses the formation and properties of fluorite in the Voznesensk and Pogranichnyi deposits (the Voznesensk ore district, Far East region, Russia). Evolution of the postmagmatic process was mainly influenced ...
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(2004)Recent experimental evidence is used to assess the conditions under which fluorite forms an early crystallising phase in silicic magmas. Fluorite solubility primarily depends on the (Na + K)/Al balance in the coexisting ...
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(2003)Fluorvesuvianite was found in the abandoned Lupikko iron mine, Pitkäranta, Karelia, Russia. It occurs in cavities of chloritized diopside skarn, as radiating aggregates of acicular crystals in calcite. Crystals (up to 1.5 ...
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(2004)A simple flux balance model with a diffusive, evaporative boundary layer indicates that the time constant (characteristic time) for approach to oxygen isotope steady state in the body fluid of land snails is ~19 min or ...
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FLUXES AND SOURCES OF VOLATILES DISCHARGED FROM KUDRYAVY, A SUBDUCTION ZONE VOLCANO, KURILE ISLANDS (1998)The Kudryavy volcano, a 996-m-high basaltic-andesite cone on the northeastern shore of Iturup Island in the Kuriles, erupted last in 1883 and has since been in a persistent state of high-temperature, >900°C fumarolic ...
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(2003)Recent discoveries define a global scale fluid reservoir residing within the uppermost igneous oceanic crust, a region of seafloor that is both warm and may harbor a substantial biosphere. This hydrothermal fluid reservoir ...
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(1991)It has been shown that any modification of the fold test leads to a definite conclusion about the magnetization nature if several basic assumptions are observed and the statistical test itself is correctly formulated. It ...
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(2001)Nucleation and development of microrelief and fragmentation of coating under tensile extension of polymer films coated with a thin rigid layer is studied, and the mechanisms responsible for the development of both types ...
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(2002)Hypervelocity impacts of cosmic projectiles larger than ˜200 m diameter are capable of forming complex craters on Earth. At these craters, shock loading, shock damage, and excavation flow are followed by a gravity-driven ...
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(2004)The extent to which the leaves of woody dicots encode in their physiognomy the climatic conditions that exist during dormancy was tested by sampling 20 sites along an approximately west-east transect across European Russia, ...
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(2004)The analysis of samples from numerous Pliensbachian and Toarcian sections from the northern regions of Russia and northern Alaska, as well as published data, allow us to estimate the correlative significance of foraminifera ...
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(1999)Data on changes in the taxonomic composition of planktonic and benthic foraminifers across the Cretaceous-Paleogene boundary are presented. Extinction events in the highly specialized planktonic group were most remarkable. ...
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(2004)In the northeastern Peri Tethys, the Goryachii Klyuch facies of the upper Paleocene are much more widespread than it was believed before. The facies correspond to dark colored, predominantly carbonate-free sediments bearing ...
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(2003)Distribution of foraminifers in the Tarusa, Steshev, and Protva horizons of the Serpukhovian Stage stratotype has been studied in the Zabor'e Quarry. Boundaries of Pseudoendothyra globosa. Eostaffellina decurta, and ...
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(2001)Opportunities for improving the oil recovery of petroleum pools have been considered. Experimental and theoretical investigations of mechanisms of vibration stimulation of petroleum fields have been performed. Mathematical ...
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(2003)Using a surface forces apparatus (SFA), we have studied the interactions between mica surfaces in pure and mixed NaCl and CaCl2 solutions at relevant geological conditions of pressure and electrolyte composition. Our results ...
Now showing items 4480-4499 of 21638