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Paper Information

Title: 

THE IMPORTANCE OF SQUARE ARRAY ELECTRICAL SOUNDING AND THE WAY OF ITS DATA INTERPRETATION

Type: PAPER
Author(s): MORADZADEH A.,ALIPOOR R.,DOULATI F.,HAFIZEE M.K.
 
 
 
Name of Seminar: CONFRANCE ZHEOFIZIKE IRAN
Type of Seminar:  CONFERENCE
Sponsor:  ANJOMANE MELI ZHEOFIZIK IRAN
Date:  2006Volume 12
 
 
Abstract: 

THE GEOELECTRICAL SOUNDING WITH THE LINEAR ARRAY IS ONE THE GEOPHYSICAL TECHNIQUES WHICH IS FREQUENTLY USED FOR UNDERGROUND WATER RESOURCE EXPLORATION AND ENGINEERING SITES INVESTIGATION. IN THE OCCASION WHERE NO SOUND GEOLOGICAL DATA EXIST TO INDICATE A HORIZONTAL LAYERED EARTH STRUCTURE OR ITS STRUCTURE IS NOT HOMOGENEOUS AND ALSO IS ANISOTROPIC, APPLICATION AND INTERPRETATION OF ITS MODELING RESULTS MAY MISLEAD INTERPRETER. IN THIS PAPER THE IMPORTANCE OF SQUARE ARRAY RESISTIVITY SOUNDING, WHICH IS LESS POPULAR THAN TO THOSE LINEAR ARRAYS, IS EXPLAINED BY NUMERICAL MODELING AND INTERPRETATION OF THE ACQUIRED DATA. THE RESULTS OF THE PRESENT STUDY SHOW THE SUB-SURFACE STRUCTURES OF THE EARTH ARE ANISOTROPIC IN THE MOST OCCASIONS AND CONSEQUENTLY THE OBTAINED RESULTS OF THE LINEAR ARRAY FOR RESISTIVITY SOUNDING ARE NOT CORRECT. THIS IS TRUE EVEN IN THE CASES WHERE THE SPACING BETWEEN THE SITES IS SMALL ENOUGH. WHEREAS, THE RESULTS OF THE IMPLEMENTED SQUARE ARRAY SOUNDING ARE ACCURATE ENOUGH TO EXPLAIN THE EARTH STRUCTURES BENEATH EACH SITE. HENCE, IN THESE SITUATIONS IT IS RECOMMENDED TO USE SQUARE ARRAY FOR GEOELECTRICAL SOUNDING AS IT LESS AFFECTED BY ORIENTATION OF THE SUBSURFACE STRUCTURES.

 
Keyword(s): GEOELECTRICAL SOUNDING, SQUARE ARRAY, SCHLUMBERGER ARRAY, MEAN RESISTIVITY, ANISOTROPY COEFFICIENT
 
 
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