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Browsing ELibrary by Title
Now showing items 1538-1557 of 21768
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(2005)This paper presents the results of the paleomagnetic and magnetic mineralogical studies carried out along the sequence of the recently discovered oldest Nedubrovo (Early Triassic) rocks of the Moscow Syneclise, exposed in ...
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(2004)Robust magnetotelluric response function estimators are now in standard use in electromagnetic induction research. Properly devised and applied, these have the ability to reduce the influence of unusual data (outliers) in ...
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(1995)Constraints on steady state flow strengths of multiphase aggregates can be obtained by the bounds calculated using the assumption of uniform stress and uniform strain rate within the aggregate. This study shows that such ...
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(2001)Abstract-Licharewia-Yike brachiopods from northeastern Russia are studied. Their generic diagnoses are emended and their species composition and stratigraphie range are revised. Two new genera Neotumarinia and Labuella are ...
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(2000)The phylogeny and taxonomy of a new tribe of the Productidae, the Reticulatiini Lazarev, trib. nov., is examined using meronomic analysis. New morphological features of these productids are described. Problems of productid ...
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BRACHIOPODS OF THE REDEFINED FAMILY TRITOECHIIDAE FROM THE ORDOVICIAN OF KAZAKHSTAN AND SOUTH URALS (2001)The Tritoechiidae are redefined following study of nine species of the genera Tritoechia, Eremotoechia, Martellia Pomatotrema, Protambonites and Korinevskia nov. gen. in Kazakhstanian brachiopod faunas from the upper ...
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(2003)In addition to the initial spine-distribution pattern, in which the posterior and anterior spines on the ventral valve surface are of approximately the same thickness, the Linoproductoidea evolved (very early in the ...
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(2002)Brachiopod-dominated palaeocommunities incorporating a structure typical of faunal groups within the Palaeozoic Evolutionary Fauna were already present in North and East Gondwana and associated terranes as early as the ...
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(2001)Bradaczekite, NaCu4(ASO(4))(3), was discovered in a fumarole in the North Breach of the Great fissure Tolbachik eruption (GFTE) in 1975-1976, Kamchatka Peninsula, Russia. Bradaczekite forms allregates of dark blue plates ...
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(1988)In the Lower Proterozoic formations of Karelia, USSR carbonaceous rocks are relatively widespread and are dated as Lyudikovian. The shungite-bearing rocks have an unusual chemical composition. Sharply dominant are two ...
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(2001)A simple graphical method is proposed to infer the tectonic regime from a fault and slip data set. An abacus is overlaid on a plot of the rake versus strike of the data. This yields the horizontal principal stress directions ...
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(2003)The paper presents new biogenic silica (BiSi) and total organic carbon (TOC) data for the past 130 kyr from BDP-98 and BDP-96-2 cores, respectively, showing a distinct climate periodicity correlated with Late Pleistocene ...
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(2001)The paper records the influence of the shape and the percentage of gravel on the shear strength/frictional angle of sand and gravel mixtures using direct shear tests. The shear strength is mainly derived from the frictional ...
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(1994)The origin of high-amplitude lower crustal bright seismic reflections in a Phanerozoic area is investigated by modeling a distribution of metamorphic fluid flow through pores as a possible explanation. A numerical model ...
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(2001)The chemical evolution of several European Mesozoic and Tertiary evaporite basins was reconstructed by using mineral associations, primary fluid-inclusion analyses, and numerical simulations of evaporation scenarios. The ...
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(2002)Ice exhibits either ductile or brittle behavior, depending upon the conditions under which it is loaded. Glaciers, for instance, are loaded by gravity, under deviatoric stresses of ~0.1 MPa or lower. At temperatures of ...
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(2003)Calcite micro-crystals were grown from solution with single crystal dimensions up to 3 mm and doped up to ~0.1% with Nd3+ ions. Phase purity was verified by powder x-ray diffraction. The concentration of Nd3+ was measured ...
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(2001)Trials in mines have established that wideband VHF borehole radars (BHR), working in the 10-100-MHz band, can be used to probe the rockmass between boreholes over ranges from <5 m to as much as 150 m with submeter resolution. ...
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(2003)Application of an X-ray fluorescence (XRF) microprobe for the analysis of single grains (80 to 1,000 μm in diameter) of Cl-rich minerals for Br has been evaluated for fluorapatite, chlorapatite, scapolite-group minerals ...
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(2006)Evidence from laboratory experiments indicates that fractionation against the heavy stable isotope of carbon (?13C) by bryophytes (liverworts and mosses) is strongly dependent on atmospheric CO2. This physiological response ...
Now showing items 1538-1557 of 21768