Browsing ELibrary by Title
- DSpace Home
- →
- Геология России
- →
- ELibrary
- →
- Browsing ELibrary by Title
JavaScript is disabled for your browser. Some features of this site may not work without it.
Browsing ELibrary by Title
Now showing items 9664-9683 of 21821
-
(1999)The accuracy of and detection limits for trace element analysis by the proton microprobe were determined using a stainless steel sample Gk-19 and glass samples prepared from whole rock reference powders JA-1 andesite, JB-1a ...
-
(2003)Single fluid inclusion analogues with known elemental composition and regular shape were analyzed for trace element contents by particle-induced X-ray emission (PIXE)-a nondestructive method for the analysis of single fluid ...
-
(2001)An internal standard X-ray diffraction (XRD) analysis technique permits reproducible and accurate calculation of the mineral contents of rocks, including the major clay mineral families: Fe-rich chlorites + berthierine, ...
-
(2002)Dredging and disposal of sediments onto agricultural soils is a common practice in industrial and urban areas that can be hazardous to the environment when the sediments contain heavy metals. This chemical hazard can be ...
-
(1997)Quantum chemical calculations at the density functional level (B3LYP functional) with full geometry optimisation have been performed on the effect of protonation and of adsorption of alkali cations (Li+, Na+, K+, Rb+, and ...
-
(2001)It has long been known that the solubilities of sulfide ore minerals in hydrothermal fluids results from the complexation of metals such as Cu, Zn and Fe by Cl and HS ligands (Seward and Barnes 1997). Complexation of heavy ...
-
(2002)The structure of dioctahedral 2:1 phyllosilicates with different interlayer charge was studied theoretically using ab initio calculations. The standard Kohn-Sham self-consistent density functional method was used in the ...
-
(2005)Trans-vacant and cis-vacant polymorphs of smectites and illites were distinguished by studying different cation substitutions in octahedral and tetrahedral sheets and in the interlayer. The standard Kohn-Sham self-consistent ...
-
(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 ...
-
(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 ...
-
(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 ...
-
(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 ...
-
(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. ...
-
(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, ...
-
(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 ...
-
(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 ...
-
(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 ...
-
(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 ...
-
(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 ...
Now showing items 9664-9683 of 21821