6389

5963

كارشناسي ارشد

اكتشاف معدن

اصفهان: دانشگاه صنعتي اصفهان، دانشكده معدن

1390

سيزده،80ص.: مصور،جدول،نمودار

ص.ع.به فارسي و انگليسي

هوشنگ اسدي هاروني، حسن طباطبايي

نادر فتحيان پور

9/9/90

عليرضا صفائيان، مرتضي طبائي

مهندسي معدن

ID5963

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

96 Proposing Complementary Drill Hole Points at Zarshuran Gold Deposit Using Integrated Modeling of Surface Exploration Data ArezooNarimani rz narimani@yahoo com Agust 29 2011 Department of Mining Engineering Isfahan University of Technology Isfahan 84156 83111 IranDegree M ScLanguage FarsiDrHooshangAsadiHaroni Email Hooshang@cc iut ac irABSTRACTThe study area is Zarshuran exploration area located5 km north to east north of Zarshuran village and25 kmnorth of Takabtownat the border between Urumieh Dokhtar volcanic belt and Sanandaj Sirjan zone Thestratigraphic units at Zarshuran are Iman Khan metamorphic rocks Chaldagh limestone the Zarshuran blackshale with carbonate intercalations and the Qaredash sandstone that they are Precambrian formations ACarlin like gold mineralization is hosted in the Zarshuran and Chaldagh units Hydrothermal alterations atZarshuran are Silisica Allunit and Argillic Silisica alteration zone due to its extent is the most importantalteration at Zarshuran deposit The correct decision could have a significant effect on exploration projects The main object of this study iscombination of new methods and integrationof various data exploration in a GIS enivironment to identifyareas of high mineral potential for further drilling Theinputdata layers for GIS integration are composed oflithologicmaps alteration geophysical and geochemical layers plus faulting related lineaments Afterevaluation of all geological units associated with gold mineralization they converted into the appropriateformat to be used in the final integrated model In order to optimize the use of structure layers in theintegrated model the radius and density layers of the fault were prepared After the initial processing ofgeochemical data using statistical calculations the corresponding histogram of different elements wereprepared Combined multi element geochemical maps were produced using multivariate partial correlationand factor analysis A magnetic survey carried out in the study are and the total magnetic field intensity weremeasured The total magnetic field intensity were measured at 800 stations operations on the lines along theNE SW and 50 meters distance profiles Because of the lack of access to the original magnetic data thealready prepared analytical signal maps were used for data integration model Two new combination methods of Fuzzy Logic and Analytical Hierarchy Process AHP were used in thisresearch to create final mineral potential map for further drilling at the Zarshuran area The result showed thatthese two methods support and complete each other butAHPproved to be the best method for combining theexploration data Comparing the final integrated potential maps with thefieldevidences mineralized locationand also analytical results of 4 boreholesconfirm the importance of AHP in this regards Key Words Zarshuran Factor Analysis GIS Fuzzylogic AHP

هوشنگ اسدي هاروني، حسن طباطبايي

نادر فتحيان پور

عليرضا صفائيان، مرتضي طبائي