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geophysical study: Estimation of Deposit Depth Using Gravimetric Data and Euler Method (Jalalabad Iron Mine, Kerman Province of IRAN)

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Open Journal of Geology 2021年第8期11卷 340-355页

作者： Adel Shirazy Aref Shirazi Hamed Nazerian Keyvan Khayer Ardeshir Hezarkhani Department of Mining Engineering Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran Department of Civil Engineering and Architecture University of Catania Catania Italy Faculty of Mining Petroleum & Geophysics Engineering Shahrood University of Technology Shahrood Iran Amirkabir University of Technology Tehran Iran

Mineral exploration is done by different methods. geophysical and geochemical studies are two powerful tools in this field. In integrated studies, the results of each study are used to determine the location of the drilling boreholes. The purpose of this study is to use field geophysics to calculate the depth of mineral reserve. The study area is located 38 km from Zarand city called Jalalabad iron mine. In this study, gravimetric data were measured and mineral depth was calculated using the Euler method. 1314 readings have been performed in this area. The rocks of the region include volcanic and sedimentary. The source of the mineralization in the area is hydrothermal processes. After gravity measuring in the region, the data were corrected, then various methods such as anomalous map remaining in levels one and two, upward expansion, first and second-degree vertical derivatives, analytical method, and analytical signal were drawn, and finally, the depth of the deposit was estimated by Euler method. As a result, the depth of the mineral deposit was calculated to be between 20 and 30 meters on average.

关键词： geophysical study Depth Estimation Gravimetric Data Euler Method Jalalabad Iron Mine

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Surface geophysical Methods used to Verify the Karst Geological Structure in the Built-up Area:A Case study of Specific Engineering-Geological Conditions

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Acta Geologica Sinica(English Edition) 2021年第5期95卷 1763-1770页

作者： Rene PUTISKA Marian MARSCHALKO Isik YILMAZ Dominik NIEMIEC CHENG Xianfeng Ivan DOSTAL Jan KUBAC Comenius University Faculty of Natural SciencesDepartment of Applied and Environmental GeophysicsIlkovičova 6BratislavaSlovakia VSB-Technical University of Ostrava Faculty of Mining and GeologyInstitute of Geological Engineering17 listopadu1570833OstravaCzech Republic Cumhuriyet University Faculty of EngineeringDepartment of Geological Engineering58140 SivasTurkey Yunnan Land and Resources Vocational College Kunming 652501China

This article presents a research study of complex limestone karst engineering-geological conditions in the municipality Valaskanear Banska Bystrica in *** aim of the study is to demonstrate the impossibility of spatial identification of cave spaces using surface geophysical methods due to the specific engineering-geological conditions of a thick surface layer of anthropogenic fill containing highly heterogeneous anthropogenic *** maximum thickness is 3 *** specificific condition of the study area is its location in the built-up area,due to which the applicability of geophysical methods was *** article contains methodological recommendations to be used in analogous geological conditions with karst structures topped with anthropogenic fill,which complicates the identification of cave *** recommended solution herein is the identification of the cave system using underground mapping of the karst and its projection onto the surface for which surface geophysical methods have been combined.

关键词： karst engineering geology limestone dolomite anthropogenic fill complicated engineering-geological conditions geophysical study

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