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Browsing ELibrary by Title
Now showing items 13704-13723 of 22187
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(2001)Measurements of compressional wave attenuation are presented for 30 low-porosity (φ = 0.4-8.8 per cent) oceanic basalts collected from 10 oceanic drill holes. The first laboratory measurements of shear wave attenuation in ...
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(2002)Marbles are frequently used as building stones even if they mostly show a limited durability. Thus, different marbles with different fabric types and states of preservation have been investigated in order to constrain the ...
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UNCERTAINTIES IN FACIES PROPORTION ESTIMATION I. THEORETICAL FRAMEWORK: THE DIRICHLET DISTRIBUTION (2002)To simulate geological models comprising several litho-types-or facies-we need first to estimate their proportions, which are often poorly known. The corresponding uncertainties can be modelled using a Bayesian approach ...
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(2002)Geostatistical simulations of lithotypes or facies are commonly used to create a geological model and to describe the heterogeneities of petroleum reservoirs. However, it is difficult to handle such models in the framework ...
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(2003)The matrix inversion of seismic data for slip distribution on finite faults is based on the formulation of the representation theorem as a linear inverse problem. The way the problem is posed and parameterized involves ...
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(1998)A weighted least-squares method is used to generate the `true' lead isotopic composition from measurements on unspiked and spiked aliquots of a sample using the double-spike method. A form for the weighting based on ...
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(2001)Soil erodibility accounts for the influence of the intrinsic soil properties on soil erosion and is one of six factors in the Revised Universal Soil Loss Equation (RUSLE), a most widely used model to predict long-term ...
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(2003)The interrelation between conductive and convective (hydrothermal) components of heat release was not taken into account in the previous interpretations of the thermal anomaly in the Baikal rift zone (BRZ). In this ...
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(2001)The Sakha Republic (Yakutia) is the northern frontier territory of Russia, located partly above the Arctic Circle. It holds important natural mining resources for the country's current and future economic development. A ...
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(2001)Mining of kimberlite diamond-containing ores in Yakutia has been considered. Deposits of kimberlite ores are under permafrost overburden which is very thick. Opencast mining of the ores is economically non-advisable. In ...
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UNDERPLATING AS A CAUSE OF THE VOLCANIC CONTINENTAL MARGIN FORMATION DURING MARGINAL SEA SPREADING (2004)Problems related to the rifting zones and continental margins of the opening sea basins include the necessity of explaining the alternation of active magmatic and a magmatic segments of continental margins recognized as ...
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(2000)Natural impacts in which the projectile strikes the target vertically are virtually nonexistent. Nevertheless, our inherent drive to simplify nature often causes us to suppose most impacts are nearly vertical. Recent ...
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(2002)Perturbation is an operation defined on the simplex and can be used for centering compositional data in a ternary diagram, applying objective criteria. Because a straight line in the original diagram is still astraight ...
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(2004)The electromagnetic (EM) activity observed before earthquakes has received a lot of attention of the scientific community. Various aspects have been proposed in order to interpret these observed EM phenomena, and the most ...
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(1996)Quadrupole mass spectroscopy was used to analyze fluid inclusion volatiles in different types of nonmarine calcites including travertines, phreatic calcretes, hydrothermal vein calcites, and pedogenic calcites. The objectives ...
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(2001)This paper presents the results of hydrochemical, hydrological, and hydrobiological studies that were conducted in Lake Karymskii in connection with an underwater eruption that had occurred in January 1996. Also presented ...
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(1996)Presents the results of the seismic stratigraphic analysis of the data obtained on continuous reflection profiles shot above the subsiding areas of the E Kamchatka shelf, which are made up of sediments that were deposited ...
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(2002)Deformation of porous crustal rock, through diagenesis, tectonic loading or other processes, can change pore volume and affect fluid pressure. The largest stress-induced pore pressure changes occur when fluid is trapped ...
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(2001)Fluid inclusions were synthesized in quartz from silver oxalate (Ag2C2O4) and a 6-wt.% NaCl aqueous solution to produce a CO2-H2O-NaCl fluid, following the method of previous workers. Synthesis conditions of 500-650°C and ...
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(2003)High concentrations of free C32bis-homohopanoic acids (up to 433 μg/g dry wt) occur in microbial mats at methane seeps in anoxic Black Sea waters. These compounds show a strong preference for the ‘geological’ 17α(H),21β(H)- ...
Now showing items 13704-13723 of 22187