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Browsing Геология России by Title
Now showing items 9552-9571 of 39375
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(2005)A new category of “named amphiboles” whose names can be published without previous approval by the IMA-CNMMN, is now recognized by the IMA-CNMMN, so long as the names agree with the IMA-CNMMN-approved system of amphibole ...
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(2004)The IMA-CNMMN has now recognized a new category of names, "named amphiboles", which can be published without its previous approval, so long as the names agree with its system of amphibole nomenclature. Generally in these ...
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(1997)A detailed study of the Paleogene terrigenous-tuffogenic beds on Kronotskii Peninsula, Govena Peninsula, and in Karaginskii Island and the Komandor Islands has revealed several levels of nannoplankton occurrences, which ...
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(2000)An olivine grain from peridotite nodule 9206 (Udachnaya kimberlite) was heated in air at 700°C for 9 h. It was investigated by EMPA, by IR and UV spectroscopy and by TEM. The TEM examination reveals hexagon-like inclusions ...
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(2005)Olivine grains from an ilmenite–garnet–peridotite nodule from the kimberlite pipe Udachnaya–Wostotschnaya, Siberia have been investigated by TEM methods (electron diffraction, HREM, AEM, EELS). The nodule is a high-temperature ...
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(2001)An understanding of first-order pressure-induced structural transitions is relevant to many research areas in geological and planetary sciences because it involves the study of materials exposed to high pressures. For ...
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(2001)Controversy surrounds the interpretation of various nano-phenomena as being living organisms. Incubation of fetal bovine serum under standard cell culture conditions results in the formation of free entities in solution, ...
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(2003)Nanopores are ubiquitous in porous geologic media and may account for >90% of total mineral surface areas. Surface chemistry, ion sorption, and the related geochemical reactions within nanopores can be significantly modified ...
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(2003)Iron oxides affect many elemental cycles in aquatic sediments via numerous redox reactions and their large sorption capacities for phosphate and trace elements. The reactive ferric oxides and oxyhydroxides are usually ...
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(2004)The effects of electron-beam damage on the Fe3+/ΣFe (total iron) ratio were measured by electron energy-loss spectroscopy (EELS) with a transmission electron microscope (TEM). Spectra were acquired from crushed and ...
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(2003)We report the first nanometer-scale measurements of the iron (III) to total iron (Fe3+/ΣFe) ratios from primitive meteorites. These ratios from the matrices and fine-grained rims (FGRs) of the Murchison, Murray, and Cold ...
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(2006)Nanometer-size P/K-rich silica glass (former melt) inclusions were identified within metamorphic microdiamonds from garnets of ultrahigh-pressure (UHP) gneisses of the Kokchetav and the Erzgebirge massifs by analytical ...
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(2004)Limited information is available on microporosity in soils. A study was undertaken to investigate the micropore characteristics of four soil samples, with different particle-size distributions, and four natural silicate ...
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(2005)This experimental study presents in situ measurements of step migration rates for layer growth of calcite at various levels of superaturation and fluid Sr concentrations. Our results show that Sr has complex behavior as ...
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(2004)We report, for the first time, a direct, atomic-scale characterization of Pb in zircon (4.4 3.1 Ga) from the early Archean Yilgarn craton in Australia using high-resolution HAADF-STEM. Two forms of Pb have been identified: ...
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(2002)Nanoscience and technology are not exactly new, but nevertheless rapidly expanding fields that are providing revolutions in all sciences on the scale of what genomics and proteomics have done in recent years for the ...
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(2004)Macromolecular carbonaceous material is common in primitive meteorites. Little information exists on its form and composition, and there are no published data on nanometer-scale chemical and structural variations. Transmission ...
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(2003)Lower Devonian amygdaloidal basalts in the North Minusinsk Depression contain abundant inclusions of natural solid bitumens [1-3]. Liquid hydrocarbon fluids were found in Lower Devonian rocks on the left wall of the Sokhochul ...
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(2000)The structure of the Central Pamirs is defined by piled-up large tectonic nappes, characterized by a quite definite and rather sustained sequence of stratification for the whole zone. Autochthone is represented by Early ...
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(2004)To test two hypotheses against seismology, the Orsted initial field model is used to estimate the radius of Earth's core by spectral methods. The model coefficients are used to compute the mean-square magnetic flux density ...
Now showing items 9552-9571 of 39375