نتایج جستجو برای: Electrical Chargeability

تعداد نتایج: 194369  

2016
Andres Gonzales Amaya Torleif Dahlin Gerhard Barmen Jan-Erik Rosberg

Conceptual models of aquifer systems can be refined and complemented with geophysical data, and they can assist in understanding hydrogeological properties such as groundwater storage capacity. This research attempts to use geoelectrical methods, Electrical Resistivity Tomography and Induced Polarization parameters, for mapping the subsurface in alluvial fans and to demonstrate its applicabilit...

This work presents the application of a geostatistical-based modeling approach for building up electrical properties acquired from a geophysical electrical tomography survey deployed for the purpose of porphyry Cu exploration at the Takht-e-Gonbad deposit, in the central domain of Iran. Electrical data were inverted in 2D along several profiles across the main favorable zones of Cu-bearing mine...

2012
Anand Prakash

Induced polarization (IP) method has been successfully implemented in investigation of groundwater, geothermal and metallic ores. From published (Nordsiek and Weller, 2008) spectral induced polarization (SIP) data, the amplitude and phase spectra have been derived. Frequencydependent impedance data sets have been calculated from these SIP data sets, which were derived for chargeability by Debye...

This work aims at figuring out the spatial relationships between the geophysical and geological models in a case study pertaining to copper-sulfide mineralization through an integrated 3D analysis of favorable target. The Ghalandar Skarn-Porphyry Cu Deposit, which is located in NW Iran, is selected for this research work. Three geophysical surveys of direct current electrical resistivity and in...

2008
Ken Yoshioka Michael S. Zhdanov

The quantitative interpretation of induced polarization (IP) data in a complex three-dimensional (3D) environment is a very challenging problem . The analysis of IP phenomena is usually based on models with frequency dependent conductivity distri­ butions . In this paper, we develop a technique for 3D nonlinear inversion of IP data based on the Cole-Cole relaxation model. Our method takes into ...

اعلمی نیا, زهرا , حیدریان شهری, محمدرضا , همام, سید مسعود, کریم‌پور, محمدحسن,

Hassan Abad Au-Sb prospect area is located in north of Khorasan Razavi Province about 45 km souht of Neyshabour. Volcanic rocks (rhyolite, rhyodacite, trachyandesite and andesitic-basalt) and sub-volcanic intrusive (Eocene-Oligocene) such as biotite diorite porphyry, biotite hornblende diorite porphyry, hornblende monzonite porphyry, biotite micogranite, micogranodiorite, and granodiorite were ...

Journal: :Minerals 2023

The permeability of the fluid-bearing rock is an important parameter for reservoir prediction. Kozeny-Carman (K-C) formulation based on electrical measurements effectively characterizes permeability-resistivity relationship rocks with a single mineral composition or high porosity. complex pore structure and compacted reservoirs affect induced polarization (IP) characteristics, indirectly limiti...

Journal: :Minerals 2022

Disseminated ores in porous or fractured media can be polarized under the application of an external low-frequency electrical field. This polarization is characterized by a dimensionless property that called “chargeability”. Induced nonintrusive geophysical sensing technique used field to image both conductivity and chargeability rocks together with characteristic relaxation time. A petrophysic...

2012
Torleif Dahlin

Combined resistivity and IP investigation is a powerful tool for mapping contaminant leakage as well as delineating the extent of contaminated ground and buried waste. Resistivity investigation is well established for detection and mapping of contaminated ground and groundwater. Low resistive zones around contaminated industrial sites and landfills correlate with high ion contents in groundwate...

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