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@INPROCEEDINGS{Adrian:852674,
      author       = {Adrian, Juliane and Tezkan, Bülent and Candansayar, M.
                      Emin},
      title        = {{D}evelopment of a 2{D} {DC}/{TDIP} {I}nversion {A}lgorithm
                      for {O}re {E}xploration {P}urposes: {R}esults from a
                      {C}opper {O}re {S}ite in {T}urkey},
      reportid     = {FZJ-2018-05547},
      year         = {2015},
      abstract     = {An important matter of interest for the ore exploration
                      with geophysical methods is the determination of the
                      electrical resistivity and chargeability of the subsurface
                      on the one hand and the assessment of the dimension of a
                      potential ore deposit on the other hand. To make use of the
                      advantages of electrical and electromagnetic methods, we
                      applied the Direct Current Resistivity (DC) and Time-Domain
                      Induced Polarization (TDIP) methods together with the
                      Radiomagnetotellurics (RMT) method on a copper ore site in
                      Turkey. While the DC method is sensitive to high resistive
                      areas, the RMT method is sensitive to low resistive areas.
                      Thus, the joint application of DC and RMT is expected to
                      result in an improved picture of the resistivity
                      distribution of the subsurface in contrast to the
                      application of a single method. The TDIP method, on the
                      other hand, is qualified to detect areas with disseminated
                      sulfidic ores due to large electrode polarization effects
                      which result in large chargeability anomalies. Since the
                      presence of chargeable material effects the effective
                      resistivity of the ground, it is advantageous to use the
                      information of DC and RMT results as starting model for the
                      TDIP inversion.On the poster we present the current state of
                      the 2D DC/TDIP inversion algorithm that is being developed
                      by the University of Cologne. It is a smoothness constraint
                      inversion with an implemented forward algorithm that uses
                      the finite element method with an unstructured mesh. The 2D
                      inversion results from RMT and DC/TDIP data obtained during
                      the survey on a sulfidic copper ore deposit in Turkey are
                      presented. The presence of an ore deposit is indicated by
                      areas with low resistivity and significantly high
                      chargeability in the inversion models.This work is part of
                      the BMBF/TÜBITAK funded project “Two-dimensional joint
                      interpretation of Radiomagnetotellurics (RMT), Direct
                      Current Resistivity (DCR) and Induced Polarization (IP)
                      data: an example from ore exploration.”},
      month         = {Mar},
      date          = {2015-03-23},
      organization  = {Annual Meeting of the German
                       Geophysical Society, Hannover
                       (Germany), 23 Mar 2015 - 26 Mar 2015},
      subtyp        = {After Call},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/852674},
}