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Now showing items 12197-12216 of 39126
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(2004)Garnet–biotite and garnet–cordierite geothermometers have been consistently calibrated, using the results of Fe2+–Mg cation exchange experiments and utilizing recently evaluated nonideal mixing properties of garnet. Nonideal ...
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(1998)The continuous Fe-Mg exchange reaction, 1/2 Fe-cordierite + 1/3 pyrope = 1/2 Mg-cordierite + 1/3 almandine, between garnet and cordierite is recalibrated as a thermometer. The thermodynamic parameters for this reaction are ...
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(2006)The garnet–muscovite (GM) geothermometer and the garnet–muscovite–plagioclase–quartz (GMPQ) geobarometer have been simultaneously calibrated under conditions of T = 450–760°C and P = 0·8–11·1?kbar, using a large number of ...
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(2001)The garnet-AI silicate-plagioclase (GASP) geobarometer has been recalibrated using four recent garnet activity models, four analogous garnet-biotite temperature models, and two recent plagioclase activity models. A typical ...
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(1995)Temperature dependence of the composition of sphalerite in equilibrium with troilite + metallic iron has been determined experimentally from 400 to 840°C at 1 bar. The high-temperature runs (660–840°C) were conducted in ...
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(2004)To obtain an image of the deep structure of the Tien Shan in central Asia, we invert P and S receiver functions jointly for almost 40 local broad-band seismograph stations. The inversion is performed using a simulated ...
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(2000)Teleseismic P waves are followed by a series of scattered waves, par- ticularly P-to-S converted phases, that form a coda. The sequence of scattered waves on the horizontal components can be represented by the receiver ...
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(2001)P waves from regional-distance earthquakes are complex and reverberatory, as would be expected from a combination of head waves, post-critical crustal reflections and shallow-incident P waves from the upper mantle. Although ...
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(PANGAEA, 2003-06-28)Sedimentation rates and bottom sediment ages were determined by 14C method in the Kara Sea and the Yenisei River marginal filter. Age of carbon supplied by the Yenisei River is estimated to be 6.9 ka. As supplied carbon ...
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(PANGAEA, 2006-11-01)
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(PANGAEA, 2000-06-15)A new generalized schematic map of distribution of recent sediments within Eurasian Arctic shelves is considered. The sediments have accumulated as a result of interaction of various factors and processes specific to high ...
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(2003)Purely European geodetic Very Long Baseline Interferometry (VLBI) has been performed at regular intervals since January 1990. Meanwhile 10 VLBI sites in Europe from Sicily to Spitzbergen and the Iberian pensinsula to the ...
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(2004)In recent years, the modern methods of multi-element analysis of precious metals have attracted wide attention in scientific research and industry. The application and development in the decomposition of samples, separation ...
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(1988)During the past 10 years, about 150 scientists in 25 countries have collaborated under the auspices of the International Geological Correlation Programme Project No. 148: Evaluation and Development of Quantitative ...
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(2013)Abstract For the past few decades, Bezymianny volcano has erupted once to twice per year. Here, I examine eight eruptive events between 2006 and 2010. This is the first time period for which proximal or broadband seismic ...
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(PANGAEA, 1995-11-18)Foraminifera were examined in recent (<100 years) fine-grained glaciomarine muds from surface sediments and cores from Nordensheld Bay, Novaja Zemlja, and Hornsund and Bellsund, Spitsbergen. This study presents the first ...
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(2004)The regimes similar for both plains and specific are distinguished as result of cluster analysis applied concurrently for both plains. In particular, for the East-European plain (EE) the intense denudation regimes are ...
Now showing items 12197-12216 of 39126