Browsing ELibrary by Title
- DSpace Home
- →
- Геология России
- →
- ELibrary
- →
- Browsing ELibrary by Title
JavaScript is disabled for your browser. Some features of this site may not work without it.
Browsing ELibrary by Title
Now showing items 6395-6414 of 21934
-
(1997)We performed physical model experiments by utilizing a laser doppler vibrometer (LDV). Because LDV converts velocity of vibration to the Doppler shift frequency, it enables very precise measurements of ultrasonic waves ...
-
(2003)Proton NMR (nuclear magnetic resonance) measurements were made of T1 and T2 relaxation times of water in saturated sands containing varying amounts of sorbed oil on the grain surfaces. The porosity, surface area, and grain ...
-
(2003)This paper gives an overview of the published literature on laboratory testing of the stress dependence of rock-permeability. Additionally results of personal research on the stress dependence of the permeability of a ...
-
(2002)Pseudotachylytes generally possess stable remanent magnetizations but the processes by which pseudotachylytes are magnetized remain poorly understood. Magnetic hysteresis and scanning electron microscope studies reveal ...
-
(2001)Although much of the world's petroleum resource-base is associated with marine systems, regionally lacustrine petroleum systems are important. Individual accumulations may exceed several billion barrels. In each of these ...
-
(2001)Thirty seven species belonging to three families of lagomorphs (Prolagidae, Ochotonidae, and Leporidae) from the Pleistocene of Eurasia are reviewed.
-
(2003)In this paper we investigate three Lagrangian methods that have been recently proposed to quantify mixing in chaotic and time-aperiodic geophysical flows. The analytical method proposed by Haller [e.g., G. Haller, Chaos ...
-
(1998)The kinetics of oxidation of fine-grained olivine Fa11 (mean grain size 70 μm) in air was studied at 600°C. The degree of oxidation was measured by Mössbauer spectroscopy. The overall oxidation process proceeds in two ...
-
(2004)New geothermal data are presented for Lake Issyk Kul’, a mountain lake in the northern Tien Shan, Central Asia. With 40 successful measurements done, the average heat flow is 48.3 mW/m 2 . This is 10 to 20 mW/m 2 lower ...
-
(2001)Fine-grained laminated deposits are often reported from contemporary and ancient glacimarine sedimentary sequences. Laminated glacimarine sediments form by a variety of processes, including suspension settling from turbid ...
-
(1992)The paper presents a geological description and information about the mineral and chemical composition and petrochemical and geochemical characteristics of lamproites, identified in the eastern part of the Baltic Shield. ...
-
(1990)Detailed study of alkalic potassium-rich rocks of the Karelia-Kola region has revealed a rock group that fully satisfies petrographic, mineralogic and geochemical criteria for assigning it to the lamproite magmatic series. ...
-
(1990)Evidence of Mesozoic lamprophyre volcanism was established by us for the first time for Syria in the rift on the west margin of the Arabian platform. We studied the diatremes of Al Burgal, A'r R'band, Al Asued and Marqikh ...
-
(2001)One of the more advanced approaches for simulating groundwater flow in fractured porous media is the discrete-fracture approach. This approach is limited by the large computational overheads associated with traditional ...
-
(2003)Globally, land-use change is occurring rapidly, and impacts on biogeochemical cycling may be influenced by previous land uses. We examined differences in soil C and N cycling during long-term laboratory incubations for the ...
-
LANDSCAPE PRESERVATION UNDER FENNOSCANDIAN ICE SHEETS DETERMINED FROM IN SITU PRODUCED 10BE AND 26AL (2002)Some areas within ice sheet boundaries retain pre-existing landforms and thus either remained as ice free islands (nunataks) during glaciation, or were preserved under ice. Differentiating between these alternatives has ...
-
(2003)We present the results of an experimental investigation of the concurrent action of tectonic uplift and climate variation on relief evolution. We designed an experimental apparatus that allows the study of erosion of ...
-
(2001)Landscape sensitivity may be discussed in terms of the response of landscape systems to perturbation on different time and spatial scales. Unstable systems behave chaotically but may show self organised criticality, while ...
-
(2001)Landscape sensitivity is expressed as the ratio of the change in a system to the change in a landscape component. The larger the ratio, the greater the sensitivity. An array of drivers of landscape change is reviewed, but ...
-
LANDSCAPE, REGIONAL AND GLOBAL ESTIMATES OF NITROGEN FLUX FROM LAND TO SEA: ERRORS AND UNCERTAINTIES (2002)Regional to global scale modelling of N flux from land to ocean has progressed to date through the development of simple empirical models representing bulk N flux rates from large watersheds, regions, or continents on the ...
Now showing items 6395-6414 of 21934