3933

3711

كارشناسي ارشد

اكتشاف معدن

اصفهان: دانشگاه صنعتي اصفهان، دانشكده معدن

1386

سيزده، 93، [II] ص.: مصور، جدول، نمودار

ص. ع. به فارسي و انگليسي

نادر فتحيان پور، مرتضي طبائي

حسن طباطبايي

11/03/87

علي مرادزاده، هوشنگ اسدي هاروني

1396/03/06

كتابنامه

معدن

مهندسي معدن

ID3711

به فارسي و انگليسي: قابل رؤيت در نسخه ديجيتال

Abstract Recent increase in metal demand and consumption has led to a significant increase inmetal prices and in particular copper as one of the strategic elements in electronic industry Such economical developments have resulted in attracting more investments for searchingsuch metals worldwide Since the globally known copper belt runs through Iran it is wellunderstood that in order to make efficient exploratory strategies we need to apply modernequipments and techniques to exploit information hidden in raw data which are inherentlynoisy and incomplete This dilemma emphasizes the need for devising new and efficientmodeling methods consistent with geological settings of the studied area In reality thegeological features related to mineralization are fundamentally three dimensional Thereforedue to recent advances in computer hardware and software technology it would be much easierto apply more elaborate and complex numerical modeling techniques for solving governingequations of physical problems There exists a number of numerical methods capable ofsolving such physical problems numerically among whom the most straight forward solutioncalled finite difference method is well known for its robustness In current study we havedeveloped a three dimensional volume finite difference algorithm capable of solving DCresistivity and induced polarization of geophysical systems After discretizing the equationswe have programmed the devised algorithm in Matlab computing environment The program has been tested via simple synthetic models where we know the exactsolution analytically The program performance for both accuracy and precision weresatisfying giving less than 5 percent in overall models tested In order to evaluate theapplicability of employing the devised program for real world the Mazdeh copper prospectsituated 25 kms south west of Natanz were simulated geophysically for both resistivity and IPdata and five geophysical profiles were employed as the main case study of this research work Since in some parts of the deposit the physical property shows two dimensionalcharacteristics we have checked the performance of our 3D modeling program with that of thewell known 2D forward modeling and inversion program called RES2DINV The obtained results show that the depth extent of mineralized zone is limited to 60meters at best Finally it is proposed to drill a bore hole of 80 meters depth at 75 degrees dipfrom 75 meters distance to the starting point of profile 34 to check the modeling results

نادر فتحيان پور، مرتضي طبائي

حسن طباطبايي

علي مرادزاده، هوشنگ اسدي هاروني