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Now showing items 11848-11867 of 38944
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(2004)Interpretation and inversion of azimuthally varying nonhyperbolic reflection moveout requires accounting for both velocity anisotropy and subsurface structure. Here, our previously derived exact expression for the quartic ...
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(2001)A fast and accurate optical method to calculate quartz c-axis orientations using the rotating polarizer stage and standard thin sections is presented. c-Axis orientations are calculated for each pixel and Achsenverteilungsanalyse ...
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(1997)New quartz solubility measurements in pure water that approached equilibrium from undersaturation at 21, 50, 74, and 96°C were combined with critically selected quartz solubility data from the literature to create a revised ...
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(2000)The solubility of quartz in H2O-NaCl solutions was measured at 2, 4.35, 10 and 15 kbar and 500-900°C, and at NaCl concentrations up to halite saturation, usually greater than 75 wt.%. Quartz solubility was also measured ...
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(2001)The solubility of quartz and incongruent dissolution ('apparent solubility') of albite and diopside in H2O-NaCl and H2O-CO2 fluids have been determined at pressures up to 0.9 GPa (9 kbar) and temperatures of 500-900 °C. ...
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(2001)Quasi-spontaneous variations are those which appear as though they are spontaneous, but are in fact stimulated by an informational influence, conventionally called 'Z radiation'. An information influence is an influence, ...
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(1992)The Vendian period, which preceded the Phanerozoic, was characterised not only by prominent evolutionary events, but also by an unusual composition of the sulphur, carbon and strontium in the sediments. From the point of ...
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(1969)
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(PANGAEA, 2010-06-08)
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(2004)Quaternary glaciation in the High Mountains of Central and North-east Asia is characterised by the interaction of glaciers and permafrost. The combined activities of these geological agents characterise the cryo-glacial ...
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(2004)This chapter explores that northeastern Asia is a region with a very diverse, mostly mountainous topography. The territory has a frigid continental climate, with great diurnal and seasonal fluctuations of air temperatures ...
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(1999)Loess-paleosol covers are widespread in Central Asia. The most complete loess-paleosol sections are situated in southern Tajikistan. By using biostratigraphic and paleomagnetic records, we recognized the main stratigraphic ...
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(2003)The long, continuous, high-latitude, stratigraphic record of Lake Baikal was deposited in three broad sedimentary environ-ments, defined by high-resolution seismic-reflection and coring meth-ods: (1) turbidite depositional ...
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(2002)High-quality palaeoceanographic reconstructions based on sequences preserved in shallow marine environments demonstrate that these constitute significant archives of climatic and oceanographic change. Such sequences are ...
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(1998)Recent deposits representing the early-late Pleistocene climatoliths are detected and described in the course of a comprehensive study of several reference sections in the middle Volga River basin. Data of lithological, ...
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(2001)A vole zonal scheme is proposed for the Quaternary of Eastern Europe. The scheme is based on the evolutionary appearance of forms in the Borsodia-Prolagurus-Lagurus, Mimomys-Arvicola, and Allophaiomys-Stenocranius lineages. ...
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(1996)Basaltic shergottites are commonly described as having crystallized from magmas that contained entrained or cumulus pyroxenes. Complexly zoned clinopyroxenes in QUE94201, a newly recovered Antarctic shergottite, are similar ...
Now showing items 11848-11867 of 38944