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Paper Information

Journal:   ENGINEERING GEOLOGY   winter 2020 , Volume 12 , Number 4 ; Page(s) 95 To 121.
 
Paper: 

Proposing The Optimum Locations For Drilling In Saveh North-Narbaghi Porphyry Copper Deposit On The Basis Of Geophysical Data Modeling

 
 
Author(s):  Ahmadi Reza*, Rezapour Mohammadreza
 
* 
 
Abstract: 
In the present research, modeling of magnetic, resistivity (Rs) and induced polarization (IP) data of Saveh North-Narbaghi deposit has been carried out. Also 23 deep boreholes with a total depth of 2425m have been drilled scattered at the studied area. In the first step, processing sequences were applied for magnetic data to highlight the deep anomalies using the Oasis montaj. Afterward, inverse modeling of the geoelectric profiles were done using Res2dinv and the optimum location of drilling was proposed on the basis of qualitative interpretation of geophysical real sections containing chargeability, resistivity and metal factor (MF). In the following the depth variations map of geoelectric properties was plotted and interpreted for inverted data in four depths of 10, 25, 43 and 78 meters. Afterward, to imagine the spatial variations of the electrical properties of the region and proposing the most appropriate location for drilling operation, the quasi three-dimensional solid model of Rs, IP and MF variations of the deposit after the smoothness inversion was mapped using Rockworks. Plotting ore deposit cross-section along the geophysical profiles using the assay data from the boreholes, revealed that drilling of some boreholes located on the profiles and independent of the results of geophysical operation, has been carried out without any right logic, purpose and design with no ore body. Also the qualitative accordance of the results of geoelectrical operations with the assay data from boreholes having ore body, located on the geophysical profiles, showed in general a moderate qualitative accordance between these data.
 
Keyword(s): Saveh North-Narbaghi copper deposit,magnetic survey,Resistivity (Rs),Induced polarization (IP),Geophysical modeling
 
 
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APA: Copy

AHMADI, R., & Rezapour, M. (2020). Proposing the optimum locations for drilling in Saveh North-Narbaghi porphyry copper deposit on the basis of geophysical data modeling. ENGINEERING GEOLOGY, 12(4 ), 95-121. https://www.sid.ir/en/journal/ViewPaper.aspx?id=802917



Vancouver: Copy

AHMADI REZA, Rezapour MohammadReza. Proposing the optimum locations for drilling in Saveh North-Narbaghi porphyry copper deposit on the basis of geophysical data modeling. ENGINEERING GEOLOGY. 2020 [cited 2022January19];12(4 ):95-121. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=802917



IEEE: Copy

AHMADI, R., Rezapour, M., 2020. Proposing the optimum locations for drilling in Saveh North-Narbaghi porphyry copper deposit on the basis of geophysical data modeling. ENGINEERING GEOLOGY, [online] 12(4 ), pp.95-121. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=802917.



 
 
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