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 1904-1923 of 24992
-
(1994)Combined laser extraction and manometric-quadrupole-mass spectroscopic measurements permit the simultaneous analysis of CO2, He and Ar in selected fluid inclusion generations trapped in a dunite nodule from Reunion Island. ...
-
(2001)Two secular variation curves of C-isotope composition in the Late Riphean carbonates are discussed. The curve approximating data on the Upper Riphean deposits of Spitsbergen, Greenland, northwestern Canada, and southwestern ...
-
(1989)Geothermal oil, found in rift zones, is an indicator of vigorous geochemical, geological and biological alteration of matter. Appearances of petroleum hydrocarbons have been detected in areas of hot (315°C) brines springs ...
-
(2001)The C25 highly branched alkenes which have been widely reported in coastal and deep sea marine sediments and sedimenting particles have to date only been detected in benthic diatoms. Logically, a planktonic organism would ...
-
(1995)A series of novel C32-C36 polymethylhentriacontenes has been identified in near-surface sediments of the Black Sea. Hydrogenation of these components indicated that they possess the 5,8,14,24,27-pentamethyl-, 8,14,24,27- ...
-
(2004)X-ray absorption spectroscopy at Ca and Na K-edges and Molecular Dynamics (MD) simulations are used to investigate the Ca and Na environment in soda lime aluminosilicate glasses. Both X-ray Absorption Near Edge Structure ...
-
(2004)Based on their mineralogy and petrography, ~200 refractory inclusions studied in the unique carbonaceous chondrite, Acfer 094, can be divided into corundum-rich (0.5%), hibonite-rich (1.1%), grossite-rich (8.5%), compact ...
-
(2003)The petrography and mineral chemistry of 110 Ca-, Al-rich inclusions (CAIs) and 9 Ca- and/or Al-rich amoeboid olivine aggregates (AOAs) from the Ningqiang carbonaceous chondrite are reported. These CAIs are referred to as ...
-
(2006)Layers of Ca-rich garnet-clinopyroxene rocks enclosed in a serpentinite body at Hujialin, in the Su-Lu terrane of eastern China, preserve igneous textures, relict spinel in garnet, and exsolution lamellae of Ca-rich garnet, ...
-
(2003)Cadmium sorption on the hematite-electrolyte solution interface was studied in a wide range of pH and Cd2+ concentration by means of potentiometric titration and measurement of cadmium content in the solution. Computer ...
-
(2006)We studied recent phosphorite nodules and micronodules of different grades of lithification, phosphatized coprolites of sea lions, and enclosing diatom oozes. Pliocene–Pleistocene phosphate samples include phosphorite ...
-
(2002)A dated core from the profoundal zone in a pristine oligotrophic acidic lake was analyzed for Cd as well as for Al, Ca, Fe, Mg, Mn, Pb, Ti and total carbon and nitrogen. Overlying water and porewater samples were also ...
-
(2006)The oceanic cycle of cadmium is still poorly understood, despite its importance for phytoplankton growth and paleoceanographic applications. As for other elements that are biologically recycled, variations in isotopic ...
-
(2003)The crystal structure of cafetite, ideally Ca[Ti2O5](H2O), (monoclinic, P21/n, a = 4.9436(15), b = 12.109(4), c = 15.911(5) Å, β = 98.937(5)°, V = 940.9(5) Å3, Z = 8) has been solved by direct methods and refined to R1 = ...
-
(2003)The Jurassic/Cretaceous boundary interval in the northern hemisphere is characterized by the widespread occurrence of black shales. About 60% of all petroleum source rocks comprise sediments of late Jurassic and early ...
-
(2006)A Late Pan-African calc-alkaline dike swarm (basalt-andesite-dacite-rhyolite) has been investigated in a region of over 2000 km2 in the Alpine Danubian window, South Carpathians (Romania). Amphibole phenocrysts and ...
-
(2006)We tested the effectiveness of stable isotopes as recorders of physiological changes that occur during coral bleaching and recovery. Montipora capitata and Porites compressa fragments were bleached in outdoor tanks with ...
-
(2006)Trace elements in calcareous organisms have been widely used for paleoclimatic studies. However, the factors controlling their incorporation into mollusc shells are still unclear. We studied here the Sr, Mg, Ba and Mn ...
-
(2000)The low-pressure eutectic for the coprecipitation of calcite, portlandite, and periclase/brucite (with H2O-rich vapor) has served as a model for the existence and crystallization of carbonatite magmas. Attempts to determine ...
Now showing items 1904-1923 of 24992