Results of monitoring different structures by electrotomography method in difficultly constructed areas

2020 ◽  
Author(s):  
Ilya O. Shaparenko ◽  
◽  
Nina N. Nevedrova ◽  
Keyword(s):  
Fault Zones ◽  
Geological Features ◽  
Gorny Altai

The paper considers the results of a study by the method of electrotomography of complex sections of Gorny Altai with different geological features. Geoelectrical sections were constructed, the nature of the change in the parameters of fault zones was determined based on the monitoring results.

scholarly journals Geoelectrical structure and monitoring in fault zones of Uimon depression in Gorny Altai region using electromagnetic methods

2021 ◽  
Vol 929 (1) ◽  
pp. 012025
Author(s):  
N N Nevedrova ◽  
A M Sanchaa ◽  
I O Shaparenko
Keyword(s):  
Fault Zones ◽  
Northwestern Part ◽  
Altai Region ◽  
Electromagnetic Methods ◽  
Gorny Altai ◽  
Geoelectrical Structure ◽  
Electrical Prospecting

Abstract In this paper we present the results of our studies of sections of the Uimon basin in Gorny Altai (Russia) using a complex of electrical prospecting methods. The areas of Baratal Formation at the surface have been investigated. This areas explored in order to understand the stages of formation of the depression. In addition, the possibilities of the electrotomography method for regular observations in seismoactive regions are shown. Comparison of the amplitudes of the resistivity variations based on repeated ERT measurements in different zones of the Terekta fault indicates the activity of its eastern part, which is expressed in significant resistivity variations exceeding 100%. At the same time, the variations in the northwestern part of the fault, reaching 15% on average, are many times smaller.

Effects of Some Common Geological Features on Two-Dimensional Variably Saturated Flow

1992 ◽  
Vol 294 ◽  
Author(s):  
Amvrossios C. Bagtzoglou ◽  
Rachid Ababou ◽  
Budhi Sagar ◽  
M. Rashidul Islam
Keyword(s):  
Steady State ◽  
Unsaturated Flow ◽  
Fault Zones ◽  
Oscillatory Behavior ◽  
Stable Steady State ◽  
Two Dimensional ◽  
Time Step ◽  
Groundwater Flux ◽  
Geological Features ◽  
License Application

ABSTRACTThis paper presents results of unsaturated flow simulations undertaken as an auxiliary analysis for the Iterative Performance Assessment (IPA) project, one of the approaches adopted' by the U.S. NRC to develop repository license application review capabilities. The effects on flow of common geological features, such as nonhorizontal stratification and vertical or near-vertical fault zones intersecting the strata, in a two-dimensional (2D) domain are studied. Results indicate that the presence of layers and crosscutting fault zones tend to induce three-dimensional (3D) unstable flows in the unsaturated zone. The instability is manifested in our simulations by an oscillatory behavior of steady state. This numerical instability imposes extremely stringent criteria on the time step used in the simulation. Finally, once stable steady-state solutions are attained, the effect of the crossing point in the matrix-fault unsaturated hydraulic conductivity curve on groundwater flux vectors and moisture content distributions is studied.

Geoelectrical Models of Fault Zones in the Gorny Altai Region

2019 ◽  
pp. 135-144
Author(s):  
Nina Nevedrova ◽  
Sergey Babushkin ◽  
Aydisa Sanchaa ◽  
Ilya Shaparenko ◽  
Alexander Shalaginov
Keyword(s):  
Fault Zones ◽  
Altai Region ◽  
Gorny Altai

Plant Morphofunctional Response to Environmental Changes in Active Fault Zones of the Kurai Ridge (Gorny Altai)

2020 ◽  
Vol 56 (8) ◽  
pp. 773-798
Author(s):  
I. G. Boyarskikh ◽  
A. R. Agatova ◽  
A. I. Syso ◽  
A. I. Klyuchevskaya
Keyword(s):  
Active Fault ◽  
Environmental Changes ◽  
Fault Zones ◽  
Gorny Altai
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