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A comparison between 2D azimuthal and 3D resistivity imaging techniques in determining the subsurface fracture zones within Abu‐Jir Fault Zone, Southwest Karbala, Central Iraq
Author(s) -
AlZubedi Ahmed Srdah,
Thabit Jassim M.
Publication year - 2016
Publication title -
near surface geophysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.639
H-Index - 39
eISSN - 1873-0604
pISSN - 1569-4445
DOI - 10.3997/1873-0604.2016020
Subject(s) - geology , azimuth , regional geology , fault (geology) , gemology , fracture zone , seismology , fracture (geology) , structural geology , engineering geology , igneous petrology , economic geology , biogeosciences , electrical resistivity and conductivity , petrology , mining engineering , tectonics , geotechnical engineering , geometry , telmatology , volcanism , earth science , mathematics , engineering , electrical engineering
This experimental study presents a comparison between two‐dimensional azimuthal and three‐dimensional electrical resistivity imaging techniques at a given location within the Abu‐Jir Fault Zone, Central Iraq. The aim is to examine which one is a better technique in one order to study the subsurface fracture zones and to use it within and outside the fault zone. Our results show that the two‐dimensional azimuthal imaging technique is quite successful in imaging the structural geology, particularly for effective identification and delineation of the subsurface fracture zones in all directions, whereas the three‐dimensional imaging technique, carried out using data acquired in parallel two‐dimensional imaging lines, gives limited and distorted images about these zones because the Y‐spacing between the survey lines is quite small compared to the length of these lines. The two‐dimensional azimuthal technique can be useful in deep investigations to determine the extent of the structures, particularly in areas with unknown geological and structural settings.