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 7337-7356 of 21253
-
(1995)Modelling of geochemical alteration profiles (e.g., in δ18O or 87Sr86Sr) resulting from fluid infiltration has provided important constraints on the volumes of fluid that move through the crust during metamorphism. These ...
-
(2002)Synthetic seismic modelling is used to test different possible structures and forming processes of the lower crust and Moho. One and two dimensional synthetic seismic modelling of the Moho reflection is carried out to ...
-
(2003)A climate forecast provided by a General Circulation Model (GCM), a glacier mass balance model and a glacier flow model is applied to a sample of 11 small glaciers. Another sample of six glaciers and six large, heavily ...
-
(2003)Perturbation on the simplex is an operation which can be used to numerically describe changes in the composition of, for example, soils, sediments, or rocks. The combination of perturbation and power transformation provides ...
-
MODELLING DYNAMIC STRESS CHANGES CAUSED BY AN EXTENDED RUPTURE IN AN ELASTIC STRATIFIED HALF-SPACE (2004)We model the time histories of coseismic stress changes produced by an earthquake rupture on an extended fault in a layered elastic half-space. We compute the stress perturbations caused by earthquakes using the discrete ...
-
(2001)We present a new method for modelling 2-D elastic media with the application of the wavelet transform, which is also extended to cases where discontinuities simulate geological faults between two different elastic media. ...
-
(2003)In previous works, we presented 2-D and 3-D magnetotelluric modelling methods based on Rayleigh‐Fourier expansions. These methods are an alternative to finite-element and finitedifference techniques and are especially ...
-
(2003)This paper describes a new erosion model to predict the location and volume of ephemeral gullies within the main runoff collector network of agricultural catchments. This model, using an expert-based approach, combines ...
-
(2003)The Volga system is sensitive to allogenic control due to its low on- and offshore gradient (∼5 cm/km). In sequence stratigraphy, little attention has been paid to the effects of sea-level change in these ramp-margin ...
-
MODELLING ISOTOPE FRACTIONATION DURING PRIMARY CRACKING OF NATURAL GAS: A REACTION KINETIC APPROACH (1998)A numerical model has been developed to compute stable carbon isotope variations in natural gas (methane) by calculating 13CH4 and 12CH4 generation as a set of parallel first-order reactions of primary cracking. The goal ...
-
(2001)This contribution presents the results of a numerical study of karst denudation on limestone plateaux. The landscape evolution model used incorporates not only long-range fluvial and short-range hill-slope processes, but ...
-
(2004)Magma properties are fundamental to explain the volcanic eruption style as well as the generation and propagation of seismic waves. This study focusses on magma properties and rheology and their impact on low-frequency ...
-
(2003)The environmental geochemistry of molybdenum and tungsten is not well known. To enable predictions of Mo and W concentrations in the presence of ferrihydrite (hydrous ferric oxide), batch equilibrations were made with ...
-
(2004)General relations are obtained for the determination of radial and tangential components of displacements and gravitational potential variations at the Earth's surface due to tidal forces for a model with a horizontally ...
-
(2003)The wavelet approach to numerical simulation of elastic wave propagation is applied to models with localized heterogeneity, with significant contrasts with their surroundings. We consider zones with both lowered wave speed ...
-
(1999)It is often argued that the δ18O value of oceanic water was maintained close to 0%% for hundreds of millions of years, as a consequence of oxygen isotope exchange between oceanic crust and seawater. However, for several ...
-
(2001)Grassed areas, such as grass filter strips (GFS) and grassed swales, have been used extensively for the protection of surface water against erosion and polluted runoffs. A mathematical model of sediment transport in runoff ...
-
(2001)We present a method for modelling seismic wave propagation in a whole-earth model by solving the elastodynamic equations in 2-D cylindrical coordinates (r, θ) using the Fourier pseudospectral method (PSM). In solving the ...
-
(2002)Seepage from a stream, which partially penetrates an unconfined alluvial aquifer, is studied for the case when the water table falls below the streambed level. Inadequacies are identified in current modelling approaches ...
-
(2004)Field estimation of soil water flux has a direct application for water resource management. Standard methods are often difficult to apply because of the heterogeneity of the subsurface. In the present study, we show that ...
Now showing items 7337-7356 of 21253