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Геология России: Recent submissions
Now showing items 1961-1980 of 43490
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(2006)Hypotheses on the trace and nature of the SW margin of the East European Craton (EEC) are reviewed. As new geophysical data was acquired, the location of the EEC margin was repeatedly revised. Magnetic anomalies associated ...
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(2006)This contribution summarizes selected results of the "Palaeozoic Accretion of Poland" Project. Emphasis is placed on geochronological, geochemical and palaeomagnetic constraints on the Late Neoproterozoic to Early Palaeozoic ...
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(2006)Time-dependent amplitude and phase information of stacked seismic data are processed independently using complex trace analysis in order to facilitate interpretation by improving resolution and decreasing random noise. We ...
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(2006)Iron and manganese in bottom sediments studied along the sublatitudinal transect from Kandalaksha to Arkhangelsk are characterized by various contents and forms depending on sedimentation environments, grain size of ...
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POLARIZATION ANALYSIS AND POLARIZATION FILTERING OF THREE-COMPONENT SIGNALS WITH THE TIME-FREQUENCY (2006)From basic Fourier theory, a one-component signal can be expressed as a superposition of sinusoidal oscillations in time, with the Fourier amplitude and phase spectra describing the contribution of each sinusoid to the ...
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(2006)Complex-trace analysis is the method of choice for analyzing polarized data. Because particle motion can be represented by instantaneous attributes that show distinct features for waves of different polarization characteristics, ...
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CONSTRAINTS ON MANTLE ANELASTICITY FROM GEODETIC OBSERVATIONS, AND IMPLICATIONS FOR THE J2 ANOMALY (2006)We use geodetic observations of the Earth to constrain anelasticity in the Earth's mantle at periods between 12 hr and 18.6 yr. The observations include satellite laser ranging (SLR) measurements of 12 hr and 18.6 yr tides ...
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(2006)Extensive basaltic volcanism (>106 km2) occurred across northern and western-central Australia during Cambrian time. The basalts are geochemically distinctive, having unusually uniform elevated incompatible element signatures ...
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(2006)Dicentrodus possessed bicuspid teeth with a flat base and nonserrated or finely serrated, labio-lingually compressed, highly unequal cusps. Originally known from the late Visean-early Serpukhovian of Scotland (D. bicuspidatus), ...
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(2006)A simple granular flow model is used to investigate some of the conditions under which ejecta may flow as a granular media. The purpose of this investigation is to provide some bounds as to when either volatiles or an ...
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(2006)Carbon stable-isotope variation through the Cenomanian-Santonian stages is characterized using data for 1769 bulk pelagic carbonate samples collected from seven Chalk successions in England. The sections show consistent ...
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(2006)The chemistry of shallow, cold groundwater in the eastern part of the Kłodzko Region (the Sudetes, SW Poland) was investigated. Groundwaters occur in the short turn-over time zone of the hydrogeological systems. The aquifers ...
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(2006)We propose a stable inversion method to create geologically constrained instantaneous velocities from a set of sparse, irregularly picked stacking- or rms-velocity functions in vertical time. The method is primarily designed ...
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(2006)Investigations of molecular and carbon isotopic variability of hydrocarbon gases from methane through butanes (pentanes) have been performed on six mud volcanoes from two fluid venting provinces located in the Gulf of ...
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(2006)We report a magnetostratigraphic and rock magnetic study of the Yaha section, located on the southern flank of the central Tian Shan mountains, Asia. Our results show a two-fold increase in sedimentation rate as well as ...
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(2006)The ~260 Ma-old Baimazhai Ni-Cu-(PGE) sulfide deposit in the Jinping region, Yunnan, SW China, is hosted in a small mafic-ultramafic intrusion, which intruded Ordovician sandstone and slate. The intrusion is concentric ...
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(2006)The Pine Canyon caldera is a small (6-7 km diameter) ash-flow caldera that erupted peralkaline quartz trachyte, rhyolite, and high-silica rhyolite lavas and ash-flow tuffs about 33-32 Ma. The Pine Canyon caldera is located ...
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(2006)Least-squares linear regression is so popular that it is sometimes applied without checking whether its basic requirements are satisfied. In particular, in studying earthquake phenomena, the conditions (a) that the uncertainty ...
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(2006)The Citlaltépetl-Cofre de Perote volcanic chain forms an important physiographic barrier that separates the Central Altiplano (2500 masl) from the Gulf Coastal Plain (GCP) (1300 masl). The abrupt eastward drop in relief ...
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(2006)The first tetrapod fossil from the Rewan Formation of the Galilee Basin, central Queensland, Australia, is identified as Lydekkerina huxleyi, a stereospondyl found elsewhere only in the Lystrosaurus Assemblage Zone of South ...
Now showing items 1961-1980 of 43490