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Геология России: Recent submissions
Now showing items 801-820 of 41109
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(2006)Chalcopyrite (CuFeS2) leaching in perchloric acid (HClO4) at an initial pH of one and a temperature of 85 °C has been examined. The rate of leaching of Cu and Fe increased progressively over the duration of the experiment. ...
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(2006)At four underground sites in Precambrian Shield rocks in Canada and South Africa, hydrocarbon and hydrogen gases exsolving from saline fracture waters are analyzed for compositional and isotopic signatures. Dominated by ...
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(2006)The first occurrence of Ni-rich stevensite found in the ophiolite complex of Othrys, Central Greece is described. The stevensite, which develops in cracks in a host serpentinite, formed at the expense of serpentine. Two ...
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(2006)This work reports the crystal-chemical characterization of Mn-rich amphiboles from the Grenville Marble of the Arnold mine, Fowler, St. Lawrence Co., New York (U.S.A.), which were previously described by Benimoff et al. ...
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(2006)29Si MAS NMR spectroscopy on samples of 10-Å phase synthesized from oxides (6.0 GPa/600°C/400 h) and from partial transformation of talc (6.5 GPa/650°C/12.5 h) reveals that this phase contains Q2-type Si sites in a ratio ...
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(2006)We discuss how two techniques, based on (1) lattice dynamics (lattice statics) simulations and (2) Monte Carlo methods may be used to calculate the thermodynamic properties of solid solutions and highly disordered systems. ...
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(2006)Minor and trace element compositions of a suite of Ordovician, Silurian, and Permian conodonts have been characterised by laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS). Continuous, high-resolution ...
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TRACE/MINOR ELEMENT:CALCIUM RATIOS IN CULTURED BENTHIC FORAMINIFERA. PART II: ONTOGENETIC VARIATION (2006)Ontogenetic (developmental stage) measurements of Mg/Ca and Sr/Ca were made on the benthic foraminifer Bulimina aculeata, which were cultured under controlled physicochemical conditions of temperature, pH, alkalinity, ...
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(2006)Among over thirty lunar meteorites recovered from the hot deserts and Antarctica, Dhofar 489 is the most depleted in thorium (0.05 ppm), FeO, and rare earth elements (REE). Dhofar 489 is a crystalline matrix anorthositic ...
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(2006)PCA (Pecora Escarpment) 02007 and Dhofar 489 are both meteorites from the feldspathic highlands of the Moon. PCA 02007 is a feldspathic breccia consisting of lithified regolith from the lunar surface. It has concentrations ...
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(2006)The protracted development history of the Palaeo-Asian Ocean starting from ~1000 Ma to ~320 Ma, and continuation of mantle-derived magmatism right through the post-collisional period as manifested by the widespread ...
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(2006)Trace/minor element signatures (DCd, DBa, DMg, and DSr) were measured in the tests (shells) of benthic foraminifera cultured in a trace-metal-concentration-controlled system. The culture system was constructed of inert ...
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(2006)Hotspots include midplate features like Hawaii and on-axis features like Iceland. Mantle plumes are a well-posed hypothesis for their formation. Starting plume heads provide an explanation of brief episodes of flood basalts, ...
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(2006)Diamond may form in the Earth's mantle by recrystallization of graphite, by precipitation from a C-bearing fluid, or by reduction of carbonate. The latter mechanism could result from interaction with a reduced fluid or ...
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(2006)Considerable amounts of rock fragments are found in many "Purple soils" developed from purple rocks in the Sichuan basin of southwestern China. We describe the effects of anthropic pedogenetic processes on purple rock ...
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(2006)X-ray computed tomography, neutron computed tomography, and magnetic resonance imaging are driving novel scientific advances by enabling rapid, non-destructive, three-dimensional examination and analysis of earth and ...
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(2006)Microbial processes have the potential to affect the mobility of radionuclides, including U in radioactive wastes. A range of geochemical, molecular biological and mineralogical techniques were applied to investigate stable ...
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(2006)The East Antarctic Ice Sheet is the largest ice mass on Earth with a capacity to raise global sea level by up to 65 m. As the Lambert Glacier-Amery Ice Shelf drainage system is the largest to reach the coast of Antarctica, ...
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(2006)A monoclinic analogue of the mineral hydroxylapatite was found in altered leucogabbro making up one of the intrusive units in the Mesoproterozoic Seagull pluton in northwestern Ontario, Canada. The mineral is part of a ...
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(2006)In situ 187Os/188Os ratios are determined on Os-rich platinum-group minerals in podiform chromitites both in the Proterozoic ophiolite, Eastern Desert, Egypt, and in the Phanerozoic Oman ophiolite. Because they have very ...
Now showing items 801-820 of 41109