Browsing by Title
- DSpace Home
- →
- Browsing by Title
JavaScript is disabled for your browser. Some features of this site may not work without it.
Browsing by Title
Now showing items 15585-15604 of 39126
-
(2005)The concentration and distribution of Pt and Au in a fluid-melt system has been investigated by reacting the metals with S-free, single-phase aqueous brines (20, 50, 70 wt% eq. NaCl) ± peraluminous melt at a confining ...
-
(2004)The partitioning of Pt between liquid sulfides with approximately stoichiometric FeS and Pt–Fe alloys was experimentally studied. Experiments were conducted in corundum crucibles enclosed in evacuated quartz vials heated ...
-
(2001)The solubility of rhenium (Re) in a haplobasaltic melt (anorthite-diopside eutectic composition) has been experimentally determined using the mechanically assisted equilibration technique at 1400°C as a function of oxygen ...
-
(2002)To more completely assess the primary magmatic origin of Ru–Os–Ir (IPGE) alloys, we conducted experiments to evaluate the effects of T, fO2, fS2 and melt composition on the solubility of Ru in molten Fe–Ni–sulfide. Fe–Ni–S ...
-
(2004)Experiments performed at 2 kbar, in the temperature range 800–1000°C, with fO2 between NNO-2·3 and NNO+2·9 (where NNO is the nickel–nickel oxide buffer), and varying amounts of sulphur added to hydrous metaluminous rhyolite ...
-
(1992)The solubility of water in melts in the NaAlSi3O8-H2O system at high P and T was deduced from the appearance of quenched products and from water concentrations in the quenched glasses measured by ion probe, calibrated by ...
-
(1999)The solubility of zincite (ZnO) has been measured in noncomplexing solutions over a wide range of pHm (4-11), and temperature (75-200°C) at 0.03 mol . kg-1 ionic strength in NaTr media (sodium trifluoromethanesulfonate, a ...
-
(2002)Arenites, wackes, and associated shales and siltstones of the Ui group of Riphcan age in southeastern Siberia have been analyzed for petrographic, major element and selected trace element compositions (including the REE). ...
-
(2005)Tracing the origin of calcium in wet atmospheric deposits is important for environmental studies since it is a dominant acid neutralising cation and an essential nutrient. Here we present the first calcium isotope ratio ...
-
(1998)Five high-Ti basalts from the Apollo 11 and 17 landing sites have been analyzed for their hafnium isotope composition. These data serve to better constrain the hafnium isotope variation of the Moon's mantle. Variations in ...
-
(2001)A new conceptual approach has been proposed and substantiated for solving the problem of earthquake prediction and organization of monitoring on the South Baikal geodynamic testing ground. The new concept takes into account ...
-
(2003)The basement surface of the South Caspian depression lies at a depth of 20–25 km, making it one of the deepest basins in the world. It occupies the southern, deep-water, part of the Caspian Sea and two adjacent lowlands: ...
-
(2004)The South Ushkoty eluvial kaolin deposit discovered and explored by the authors is situated 20 km away from the railway in the Dombarov district of the Orenburg region. The deposit is localized in the axial zone of the ...
-
(2001)The paper presents new details of the structure of the basement and sedimentary cover of the southwestern edge of the North Baikal basin. The basement structure involves smaller-scale structures (Maloe More basin, Zama ...
-
(2002)The geological position, structural control, mineral composition, and textural zonation of ores of the Soyuznoe gold-silver deposit are considered. The deposit is the youngest of the Eocene age (48 Ma). It is controlled ...
-
(2001)In transversely isotropic media with a vertical axis of symmetry (VTI media), we represent the image in vertical time, as opposed to depth, thus eliminating the inherent ambiguity of resolving the vertical P-wave velocity ...
-
(2002)Recent discoveries have dramatically altered traditional views of the stratigraphic distribution and phylogeny of Early Palaeozoic vertebrates and permit a reappraisal of biogeographic patterns and processes over the first ...
-
(1996)Characterisation and analysis of the spatial distribution pattern (SDP) of grains or crystals in rocks is potentially a powerful technique which can be used to constrain the processes which operate in the formation of ...
-
(1999)Concentrations of water molecules and hydroxyl groups have been measured in rhyolitic glasses with 0.5% to 5.0% H2Ot using infrared spectroscopy at room temperature. The glasses were cooled at ~102C/s after having been ...
Now showing items 15585-15604 of 39126