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Геология России: Recent submissions
Now showing items 1701-1720 of 43490
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REE AND ND ISOTOPE STRATIGRAPHY OF A LATE JURASSIC CARBONATE PLATFORM, EASTERN PARIS BASIN, FRANCE (2006)Rare earth elements (REE) and Nd isotopes on the labile fraction of the Callovian-Oxfordian to Tithonian Jurassic carbonate platform of the eastern Paris Basin were used to reconstruct the composition of the contemporaneous ...
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(2006)Repeated resistivity measurement is a potentially powerful method for monitoring development of internal erosion and anomalous seepage in earth embankment dams. This study is part of a project to improve current longterm ...
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(2006)Granitic intrusions in Eocene and post-Eocene volcanic rocks outcrop in the Northern and Southern Zones of the Eastern Pontides, NE Turkey. Intrusions in the Northern Zone extend NW-SE whereas those in the Southern Zone ...
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(2006)The composite Kaçkar batholith, of Cretaceous to Late Eocene age, consists of various intrusions derived from different geodynamic settings ranging from early to mature arc, through collision, to post-collisional extension ...
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(2006)The dacite to andesite zoned Mateare Tephra is the fallout of a predominantly plinian eruption from Chiltepe peninsula at the western shore of Lake Managua that occurred 3000-6000 years ago. It comprises four units: Unit ...
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(2006)Three sets of climatic input data from weather station observations and reanalysis products were compared for use in the simulation of streamflow for a large mountainous basin in subarctic Canada. These data sets are ...
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(2006)Data from the Ørsted and CHAMP satellites have allowed modelling of the geomagnetic secular variation (SV) with unprecedented accuracy. The spectrum of the SV is consistent with generation by advectively dominated processes. ...
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(2006)The effects of small amounts of H2O (<4wt % in the melt) on multiply saturated partial melting of spinel lherzolite system cao-mgo-al2O3-SiO2 ± Na2O ± CO2 have been determined at 1·1GPa in the piston-cylinder apparatus. ...
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(2006)We have derived a model of the near-Earth magnetic field (up to spherical harmonic degree n = 50 for the static field, and up to n = 18 for the first time derivative) using more than 6.5 yr of high-precision geomagnetic ...
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(2006)Several crystal-rich, intermediate to silicic magmas erupted at arc volcanoes record a reheating event shortly prior to eruption: they provide evidence for remobilization of crystal mushes by mafic magmas. As hybridization ...
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(2006)This decade has been witness to substantial progress in the understanding of bubble dynamics and its role in volcanic eruptions. A comparison between the results of experiments and a model for bubble nucleation shows that ...
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(2006)The presence of Cretaceous detrital zircon in Upper Jurassic strata of the Great Valley Group may require revision of the lower Great Valley Group chronostratigraphy, with significant implications for the Late Jurassic-Cretaceous ...
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(2006)We present new paleomagnetic data from three Middle Neoproterozoic carbonate units of East Svalbard, Norway. The paleomagnetic record is gleaned from 50 to 650 m of continuous, platformal carbonate sediment, is reproduced ...
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(2006)Impact cratering is an important geological process on Mars and the nature of Martian impact craters may provide important information as to the volatile content of the Martian crust. Terrestrial impact structures currently ...
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(2006)We used Mars Orbiter Laser Altimeter (MOLA), Thermal Emission Imaging System visible light (THEMIS VIS), and Mars Orbiter Camera (MOC) data to identify and characterize the morphology and geometry of the distal ramparts ...
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(2006)The northern lowland plains, such as those found in Acidalia and Utopia Planitia, have high percentages of impact craters with fluidized ejecta. In both regions, the analysis of crater geometry from Mars Orbiter Laser ...
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(2006)We measured the depth, wall steepness, and ejecta roughness and surveyed the wall and floor morphology of all craters 10-25 km in diameter within the typical Vastitas Borealis Formation in the northern lowlands of Mars ...
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(2006)We have surveyed Martian impact craters greater than 5 km in diameter using Viking and thermal emission imaging system (THEMIS) imagery to evaluate how the planforrn of the rim and ejecta changes with decreasing impact ...
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(2006)We have developed a generalized quantitative technique for determining the finite pole of rotation between two rigid plates and use it to critically examine differing reconstructions of a region surrounding a prominent ...
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(2006)Impact craters that in plan view are distinctly polygonal rather than circular or elliptical are common on Mars and other planets (Öhman et al. 2005). Their actual formation mechanism, however, is somewhat debatable. We ...
Now showing items 1701-1720 of 43490