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ELibrary: Recent submissions
Now showing items 181-200 of 26285
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(2006)Nymphs of fossil grylloblattid insects are revised. Newly described taxa are Lemmatonympha gracilissima gen. et sp. nov. and Kaltanympha vorcutensis sp. nov. from the Verkhne-Syr'yaginsk locality (Ufimian, Lek-Vorkuta ...
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(2006)Members of the genus Glomites played a prominent role as plant mycobionts in the Early Devonian paleoecosystems. Remains of fossil fungi are studied from silicified tissues of the axial organs of several specimens of the ...
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(2006)A new scheme of successive stages in the formation of radiolarian skeletons is proposed. Successive complication of symmetry patterns is considered. The morphology and evolutionary changes of five types of skeletal shells, ...
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(2006)The boundaries of the Devonian, Carboniferous, and Permian stages of the Global Stratigraphic Reference Scale (abbreviated to Global Stratigraphic Scale-GSS) are described in relation to the biostratigraphic and/or ...
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(2006)We have studied the polarized optical absorption and the EPR spectra of Ni-doped beryls grown by hydrothermal, flux and gas-transport methods, and chrysoberyl grown by the Czochralski and flux methods. In beryls, three ...
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(2006)We have determined trace-element concentrations in fluorite mineral separates, host granites and residual melts trapped in quartz from a well-documented sequence of differentiated Li-F-rich granites in the Khangilay complex, ...
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(2006)According to known resolution of the IUGS, the International Stratigraphic Commission entrusted its subcommissions with a task to prepare proposals for the official approval of boundaries between Phanerozoic stages. Specially ...
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(2006)Geochemical data indicate that the protoliths of the overwhelming majority of the metamorphic rocks composing the Fedorov Complex in the Aldan granulite megacomplex were volcanic rocks of three groups, which occur in ...
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(2006)Neutron irradiation and post-irradiation annealing under oxidising and reducing conditions have been used to investigate H incorporation in, and the optical properties of, reduced (TiO2-x) rutile. Optical absorption in ...
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(2006)Cerebavis cenomanica gen. et sp. nov. from the Middle Cenomanian of the Volgograd Region (Russia) is described based on a brain mold. The brain of Cerebavis is characterized by a mosaic combination of primitive and advanced ...
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(2006)The distribution of spores and pollen grains was studied in nine sections of bottom sediments up to 50 m thick, in the southern Barents Sea. The Early Cretaceous, Pleistocene, and Holocene ages of the enclosing sediments ...
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(2006)A fragmentary coracoid of Ornithomimidae indet. from the Lower Cenomanian of the Abshir River (Kyrgyzstan) is described. This is the first record of this group in a Cenomanian locality of Fergana. The coracoid from the ...
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(2006)The role of bacteria in sedimentation of phosphorites, siliceous and carbonate rocks is discussed. Preservation of bacterial bodies in fossil condition, even in very ancient deposits, is connected with their very early ...
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(2006)Juvenile development of the Middle Cambrian agnostid trilobite Pentagnostus proanabarensis Fedoseev, 1999 is studied. A sequence of eight juvenile stages is defined based on changes in morphology and measurements. Three ...
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(2006)A new genus, Naslavcea, is erected for the Middle Miocene species Spicara fundata Bannikov, 1990 (Centracanthidae) from the Lower Sarmatian of northern Moldova. This genus is characterized by the relatively small number ...
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(2006)The crystal structure of hydrothermally synthesized Pb8O5(OH)2Cl4 [monoclinic, C2/c, a 26.069(5), b 5.8354(11), c 22.736(4) Å, β 102.612(6)°, V 3375.3(11) Å3] has been determined and refined to R1 = 0.047 with data collected ...
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(2006)The K-Ar method and its modifications play a unique role in the geochronology of young volcanic rocks, which has important fundamental and economic aspects. This method provides an opportunity for dating Quaternary rocks, ...
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(2006)The further development of electrodynamic model of strong DC electric field formation in the ionosphere above typhoon and earthquake regions has been presented. According to this model, the external electric current works ...
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(2006)Since 1996, the electric field strength of the broadcasting station CZE (Czech Republic, f = 270 kHz) has been sampled each ten minutes, by a receiver (AS) located in central Italy, 818 km far from the transmitter. Here, ...
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(2006)Pakhomovskyite, Co3(PO4)2 •8H2O, is a new mineral species found in dolomite carbonatite cutting phoscorites in the Iron-Ore Complex, Kovdor, Kola Peninsula, Russia. The mineral was found as groups (up to 3 × 2 cm) of small ...
Now showing items 181-200 of 26285