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Now showing items 5840-5859 of 39124
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(1991)In silicic volcanoes, eruptions commonly begin with violent explosive phases and evolve towards a regime of dome formation. This transition is characterized by a decrease of gas volume fraction, which has usually been ...
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(2018)The Kuril Island arc extending for about 1,200 km from Kamchatka Peninsula to Hokkaido Island is a typical active subduction zone with ∼40 historically active subaerial volcanoes, some of which are persistently degassing. ...
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(1988)The occurrence of gas bubbles at depths of 10 to 15 km or more has been demonstrated by analysis of inclusions. The ascent of gas bubbles in a closed isochoric magma system generates in them an excess (greater than in the ...
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(1989)Between 1982 and 1984, teams from the Institute (of volcanology) investigated a hydroacoustic anomaly in the Sea of Okhotsk off Paramushir Island that appeared on sonar traces as a dark water plume. Later a combination of ...
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(1999)Most silicic and some mafic magmas expand via second boiling if they crystallize at depths of about 10 km or less. The buildup of gas pressure due to second boiling can be relieved by expulsion of melt out of the region ...
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(1988)The finding of gas-hydrates in breccia from a submarine mud volcano in the South Caspian deep-sea basin served as the basis for predicting the presence here of gas-hydrate accumulations of a special submarine mud-volcano ...
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(1988)This paper gives the results of gas-logging surveys run on the 35th cruise of the R/V Dmitriy Mendeleyev in July 1985 in the Sea of Japan. During geologic investigations on the northwest slope of the North Yamato Ridge, ...
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(1997)Data from published oxygen isotope exchange experiments involving H2O and CO2 have been used to determine the reduced partition function ratios of liquid and supercritical fluid H2O and CO2. These data are compared with a ...
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(PANGAEA, 1987-06-22)
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(2003)Fluid substitution is an important part of seismic attribute work, because it provides the interpreter with a tool for modeling and quantifying the various fluid scenarios which might give rise to an observed amplitude ...
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(2005)Nineteen gastropod species are discribed from the Lamberti zone (Upper Callovian) from Dubki/ Russia; seven species and one genus (Gerasimovcyclus n. gen.) are new. Close relationships exist between the fauna from Dubki ...
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(2003)With the aim of treating the statistics of palaeomagnetic directions and intensities jointly and consistently, we represent the mean and the variance of palaeomagnetic vectors, at a particular site and of a particular ...
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(2003)Gel permeation chromatography (GPC) was applied to concentrate steranes and triterpanes in oils and measure their compound-specific carbon isotope ratios (δ13C). Trace steranes and triterpanes were concentrated from ...
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(1998)Recent experimental and theoretical work has demonstrated that the dissolution rates of many aluminosilicate minerals are inversely proportional to the activity of aqueous Al3+. The consequences of these observations on ...
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(2000)Certain general indicators of the mechanical properties of rocks that are invariant under transformations of the coordinate system are suggested for use in quantitative studies of stress and strain in rock masses. A technique ...
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(2001)The dissolution mechanisms of multioxide silicate minerals and glasses differ from those of single (hydr)oxides because their dissolution may require the breaking of more than one metal-oxygen bond type. A general kinetic ...
Now showing items 5840-5859 of 39124