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Browsing ELibrary by Title
Now showing items 6957-6976 of 21936
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MATURITY ASSESSMENT OF OILS FROM THE SAKHALIN OIL FIELDS IN RUSSIA: PHENANTHRENE CONTENT AS A TOOL (2001)A correlation analysis of maturation parameters was carried out on 14 crude oil samples from nine oil fields on Sakhalin Island (Russia). The oils were taken from reservoir rocks of Miocene age at depths ranging from 73 ...
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(1989)The scale of manifestation of the Valday glaciation in the northern shelf zones of Eurasia continues to be controversial. This problem is of both theoretical and practical importance. It is particularly important in planning ...
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(2004)The origin of the low-angle normal faults of metamorphic core complexes has been debated for over two decades. Proponents of Andersonian fault mechanics have long argued that it is mechanically unfeasible for slip to occur ...
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(2000)A series of smectites was investigated to reveal the thickness distribution of crystallites. The Fourier decomposition technique of Bertaut-Warren-Averbach (MudMaster program) was applied to XRD reflections of <0.2 mu m, ...
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(2001)Owing to difficulties in obtaining measurements and to the vagaries of the weather at sea, few field data exist pertaining to sediment mobilisation and transport in storm conditions. Consequently, empirical formulae widely ...
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(2003)Recent studies have used the relative rotation axis of sigmoidal and spiral-shaped inclusion trails, known as Foliation Inflexion/Intersection Axis (FIA), to investigate geological processes such as fold mechanisms and ...
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(2003)The forces of interaction were measured between the siderophore azotobactin and the minerals goethite (α-FeOOH) and diaspore (α-AlOOH) in aqueous solution using force microscopy. Azotobactin, a pyoverdin-type siderophore, ...
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(2001)This study reports the first potentiometric titrations of bacterial surfaces at elevated temperatures. We used a hydrogen electrode concentration cell to examine the protonation behavior of Bacillus subtilis (an aerobic, ...
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(2004)Blum and Eberl (2004) presented a new technique for determining the surface area of clay minerals in sediment samples by measuring the amount of polyvinylpyrrolidone (PVP) [CAS#9003-39-8] adsorbed by a sample, and explained ...
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(1995)The rates at which organic macromolecules are remineralized, and variations in degradation rates with site and depth, are critical aspects in calculating the turnover of oceanic organic carbon. This work introduces a new ...
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(1995)Simultaneous measurements of compressional and shear wave velocities (VP and VS) in two rocks with identical chemistry but with different mineral assemblages were carried out from room temperature to 850°C at 1 GPa. One ...
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(1998)The thicknesses of fundamental illite particles that compose mixed-layer illite-smectite (I-S) crystals can be measured by X-ray diffraction (XRD) peak broadening techniques (Bertaut-Warren- Averbach (BWA) method and ...
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(2003)It has been suggested that interstratified illite-smectite (I-S) minerals are composed of aggregates of fundamental particles. Many attempts have been made to measure the thickness of such fundamental particles, but each ...
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(1998)A calibration procedure is presented for the use of a Y2O3-stabilized zirconia (YSZ) oxygen sensor in 1 atm gas-mixing furnaces in the temperature range 1200-1500°C and 0-8 orders of magnitude below the iron-wustite (IW) ...
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MEASUREMENT OF PARTITION COEFFICIENTS OF PHENOL AND CRESOLS IN GAS-CHARGED CRUDE OIL/WATER SYSTEMS (2003)An instrument has been constructed for monitoring the partition coefficients of phenol and cresols between crude oil and water under sub-surface conditions. The device has the capacity for introducing methane gas into crude ...
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(2003)The purpose of this study was to determine the sated (near-saturated) hydraulic conductivity, K, of surface soil in the field. With K as a parameter, an equation describing cumulative water runoff from a small-plot sprinkling ...
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(1989)We describe a method of detecting seismic oscillations comprised of both displacements and rotations, and we present examples of its application in the laboratory and in the epicentral zone of a shot. We built a model ...
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(1998)In the last decade there was a large increase in the number of VLBI antennas around the world, both for radioastronomy and geodesy. This increase is connected to the dramatic improvements in their results, in particular ...
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(1999)An overview of different aspects of deformation measurements is given. An introduction to the general theory of point-crustal deformations with an application to the stress–strain relations at the earth surface is made. ...
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(2003)Only one part of the EPR lines of a kaolinite spectrum of structural Fe3+ is clearly observable because of the overlapping of other lines with other spectra. For this reason, to determine the structural Fe3+ concentration ...
Now showing items 6957-6976 of 21936