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Геология России: Recent submissions
Now showing items 2381-2400 of 43490
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(2006)In order to investigate the partitioning of trace elements in mineral phases of black shales and diagenetic remobilization of trace elements within these phases, we isolated major black shale components (sulfide, carbonate, ...
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(2006)Time-of-flight powder neutron diffraction has been used to measure the molar volume of MgSO4.7D2O (i) from 1.8 - 300 K at ambient pressure, (ii) from 50 - 290 K at 1.4, 3.0, and 4.5 kbar, (iii) from 0 - 5.5 kbar at 290 K, ...
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GLACIAL AND ROCKY-SHORE DYNAMICS OF THE KARLEBOTN MONADNOCKS: LATE NEOPROTEROZOIC OF NORTHERN NORWAY (2006)Located near the village of Karlebotn in East Finnmark, Norway, a cluster of six gneissic monadnocks is unconformably surrounded by weakly metamorphosed sandstone strata of late Neoproterozoic age in the Smalfjord Formation. ...
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(2006)A new concept gravity meter with sensitivity close to 10-8ms-2/√Hz in the range of 10-5-1 Hz intended for observation of the vertical component of the Earth gravity and teleseismic waves was implemented at the Istituto di ...
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(2006)A compositionally diverse group of basaltic flows are present in the 2.7 Ga St. Joseph assemblage of the St. Joseph greenstone belt, Uchi Subprovince. A spectrum of light rare earth element (LREE) depleted to enriched ...
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(2006)Fluorite is the most common fluoride mineral in magmatic silicic systems and its crystallization can moderate or buffer fluorine concentrations in these settings. We have experimentally determined fluorite solubility and ...
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(2006)The layer charge reduction of two Li-saturated montmorillonites is referred to application of microwave radiation at 2.45 GHz for dispersions and 30.0 GHz for the solid powders. Efficiency of these treatments was compared ...
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(2006)The peridotite bodies of the Ulten Zone (Upper Austroalpine, Italian Eastern Alps) are enclosed in Variscan migmatites and derive from a mantle wedge environment. They display the progressive transformation of porphyroclastic ...
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(2006)The dual-thermodynamic (DualTh) approach is shown to provide a useful alternative to other methods in: (i) forward modelling of equilibrium speciation, activities, and element partitioning in a heterogeneous system involving ...
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(2006)Unlike many other characteristics that affect the clarity grade of a diamond, determination of the impact of "whitish" graining and "reflective" graining requires analysis that goes beyond visibility at 10× magnification. ...
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(2006)Magmatic iron meteorites are considered to be remnants of the metallic cores of differentiated asteroids, and may be used as analogues of planetary core formation. The Fe isotope compositions (δ57/54Fe) of metal fractions ...
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(2006)When a mineral is included in another, the pressure on the two is the same. As pressure and temperature then change, the pressure on the inclusion is likely to become increasingly different to the pressure on its host as ...
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(2006)Zircon inclusions in sapphires from Madagascar were studied to investigate the effects of heat treatment on their gemological and spectroscopic features. Progressive decomposition of zircon and chemical reactions between ...
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(2006)Stromboli volcano is well known for its continuous strombolian activity. Moreover, the volcano occasionally shows effusive phases, the latest in 1985-1986. On 28 December 2002 Stromboli entered a new effusive phase, ...
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(2006)We have used finite element modeling (FEM) to successfully reproduce elastic volume changes of synthetic fluid inclusions in quartz pressurized in a hydrothermal diamond-anvil cell (HDAC) at external pressures up to 250 ...
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(2006)U-series studies in oceanic basalts are critical for understanding melting and melt extraction in the Earth's mantle. The combined results of a detailed geochemical study of melting and melt extraction at Theistareykir, ...
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(2006)Melt inclusions contained in plagioclase and olivine phenocrysts have been studied in tholeiitic basalts from the Shona ridge-centered hot spot region, South Atlantic Ocean. Two types of primitive melt inclusions exist ...
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(2006)Elastic and structural behavior of a natural cubic analcime (space group:Ia3d)from Sardinia (Italy) was investigated at high pressure by in situ single-crystal X-ray diffraction. A first-order phase transition is observed ...
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(2006)Todorokite is a common Mn oxide (with a tunnel structure) in the Earth surface environment, and can be obtained by hydrothermal treatment or refluxing process from precursor buserite with a layered structure. Several ...
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(2006)Manipulation of the oxidation state of structural Fe in clay minerals is a potential method for altering important physical-chemical properties of the clay and several studies have focussed on this phenomenon. This paper ...
Now showing items 2381-2400 of 43490