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Browsing Геология России by Title
Now showing items 6700-6719 of 39126
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(2004)The high-pressure character of the metamorphic rocks from the Dakhov Block makes them similar to the Blyb eclogite-bearing complex in the southern part of the Front Range, but the maximum pressures in the block were lower ...
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(2004)The ZrO 2-TiO2 phase diagram was studied with synthesis experiments between 1200°C and 1650°C, 1 atm and 28 kbar, investigating the effect of pressure on the compositions of rutile [TiO2], zirconia [ZrO2], and zirconium ...
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(2001)A synthesis of high-resolution (Chirp, 2-7 kHz) seismic profiles in the South Korea Plateau reveals that large masses of wavy stratified sediment (≈60-90 m thick) cover broad, gently sloping (<0·5°) ridges in water depths ...
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(2005)The high sensitivity of the satellite-transition (ST) MAS NMR technique was exploited to obtain high-resolution 17O MAS NMR spectra of the three polymorphs of Mg2SiO4: forsterite (α-Mg2SiO4), wadsleyite (β-Mg2SiO4), and ...
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(2004)A number of different geodynamic models have been proposed to explain the early tectonic evolution of the Baltic Shield. To provide additional geophysical constraints on these models, we performed a teleseismic tomography ...
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(2003)Assessment of contributions from shallow lithosphere to teleseismic wave front distortion is a prerequisite for high-resolution regional teleseismic tomography. Several methods have been proposed in the past for the ...
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(PANGAEA, 2011-05-07)This study describes detailed partitioning of phytomass carbon (C) and soil organic carbon (SOC) for four study areas in discontinuous permafrost terrain, Northeast European Russia. The mean aboveground phytomass C storage ...
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(2002)Palaeotemperature sensitive series from tree-rings, ice cores, corals and documentary sources are combined to producepalaeo summer-temperaturereconstructions (AD 1970-1761)and geographical eigenvector (EOF) maps in both ...
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(2004)Analyses of benthic foraminifera in sediment cores taken at about 1000 m water depth at the Yermak Plateau and the Barents Sea slope, adjacent to the position of the ice-sheet edge during the Last Glacial Maximum, show ...
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(2002)Oscillatory zoning in plagioclase is investigated at small scale (≤10 µm) using accumulated backscattered electron (BSE) images as high-resolution imaging method. Combined with electron microprobe quantitative analysis, ...
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(2004)Another BDP drilling experiment was carried out in the winter of 1999 at 52degrees05'23"N-105degrees50'24" E, under 201 in of water, on the slope of the Posol'sk Bank, a submerged bottom rise in South Baikal. The -350 m ...
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(1999)Cathodoluminescence (CL) investigations of igneous, metamorphic and sedimentary feldspars indicate that rare earth elements (REE)-activated CL in feldspars is more common than previously assumed. Hot-cathode CL microscopy ...
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(2020)A bed-by-bed biostratigraphical study of two key Californian outcrop sections of the JurassiceCretaceous transition interval is presented. The studied succession is characterized by the occurrence of abundant buchiid ...
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(2001)We have analyzed 214 fossil apatite samples from nine stratigraphic sections worldwide that cover the lower Cambrian to lower Ordovician for their strontium isotope ratios. Of these samples, 180 from six sections that cover ...
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(2003)Pre-Quaternary terrestrial climate records in which time has been calibrated using astronomical cycles are, with the exception of lacustrine proxies, poorly represented in the geological record. This omission is a significant ...
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(2000)The results of a new technique for the measurement of the thickness distribution of fundamental particles are reported. The technique is based on high-resolution transmission electron microscopy (HRTEM) of Na-saturated ...
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(2001)High-resolution X-ray Absorption Near-Edge Structure (XANES) spectra of iron allow to take into account the effects of the coordination numbers on the quantification of redox values. Volcanic glasses show split pre-edge ...
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(2005)We present the first high-resolution carbon isotope and carbonate content profiles generated through the thickness of enamel from a steer fed C3- then C4-dominant food. Carbonate contents decrease by ~2 wt% from the enamel ...
Now showing items 6700-6719 of 39126