Tectonics
zahra kamali; hamid nazari; ahad fazeli; faramarz alah vardi migoni; mohamad ali shokri; firooz jafari; hossin iranshahi
Abstract
The Dorud fault, as one of the most important seismic in segments of Zagros main recent fault, near the Arjng area it have northwest-southeast trend and continuity extended in Boroujerd area. Geophysical impressions in 5 profiles, and three resistivity, magnetometric and radionuclide parallel profile ...
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The Dorud fault, as one of the most important seismic in segments of Zagros main recent fault, near the Arjng area it have northwest-southeast trend and continuity extended in Boroujerd area. Geophysical impressions in 5 profiles, and three resistivity, magnetometric and radionuclide parallel profile and parts of one profile were performed. After the completion of field operations and data acquisition, GPR and magnetometer data were final processed in Radexproler and Geosoft software’s, respectively and with combining them in PA software, clearer interpretation of the subsurface structures, especially faults and discontinuities area were obtained. Among these, the F1 fault was considered as the main fault and F2 was the branching branch of the faulty branching out of it. For this reason, the Drood fault in this range is a fault zone with branching fissures branching out to the northeast This fault zone is located at the level of Silakhor plain with a length of several tens of kilometers, a variable height between 50 cm and 7 meters and with approximate dip 60-75 degree toward the north. all of these fault branches have a mechanism and according to their normal slip component.
Tectonics
zahra kamali; magmodreza Hayhat; hamid nazari; mohammd mahdi khatib
Abstract
The Dorud fault, as one of the most important seismicin segments of Zagros main recent fault, near the Arjng area it have northwest-southeast trend and continuity extended in Boroujerd area. This area is determined Kinematic dissimilarity fault the fractal analysis of the fractures, the center of earthquakes ...
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The Dorud fault, as one of the most important seismicin segments of Zagros main recent fault, near the Arjng area it have northwest-southeast trend and continuity extended in Boroujerd area. This area is determined Kinematic dissimilarity fault the fractal analysis of the fractures, the center of earthquakes and drainage using the of box method, For this purpose, the study area was divided into two parts based on the difference in distribution of fractures and epicenter earthquakes. Fractal dimensions of fractures, drainage and epicenter earthquakes are calculated and then compared with each other. Kernel density method to investigate the epicenter earthquakes distribution and drainage in the long fault to rate the dissimilar activity that .In the end, the analysis of evidence Morphotectonic that long it’s to determine the horizontal, vertical displacements and net slip to be paid. Fractal analysis on Kernel density method and evidence Morphotectonic. In the end, the analysis of that long it’s to determine the horizontal, vertical displacements and net slip to be paid. So that results of fractal to indicate that the northern segment of the most dynamic segment spread to be identified. Also The results of the kernel analysis and evidence Morphotectonic indicates that neither the fault that along with passing of units of different ages show different behavior and the amount of angle Rick obtained along the fault is different according to the results achieved in three segment to different long can be divided, so that angle Rick segments 1 and2 respectively126°/16° and124°/22° and long segments respectively 18 and48 kilometer, to notice the high values of rick (more of10°) the two segments have a dominant effect of the component dip- slip relative to strike-slip but the angle rick 131°/4° in segment 3indicate of the action component strike slip that the units alluvial are plain Silakhor this segment long is 44 kilometer.
