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  • 标题:Efficiency of a Marine Towed Electrical Resistivity Method
  • 本地全文:下载
  • 作者:Chih-Wen Chiang ; Tada-nori Goto ; Chien-Chih Chen
  • 期刊名称:Terrestrial Atmospheric and Oceanic Sciences
  • 印刷版ISSN:1017-0839
  • 出版年度:2011
  • 卷号:22
  • 期号:4
  • 页码:443-445
  • DOI:10.3319/TAO.2011.02.16.01(T)
  • 出版社:Chinese Geoscience Union
  • 摘要:In contrast to marine sediments, because of large electrical resistivity anomalies found in sulfide deposits and methane hydrates, resistivity measurements such as marine towed electrical resistivity (MTER) might be a feasible method for discovering those natural minerals. To determine the feasibility of the MTER method we examined arrays consisting of a pole electrical dipole (PED), vertical electrical dipole (VED) and horizontal electrical dipole (HED). The VED array showed a maximum difference in electric fields of 36 % and 105 % in the resistive and conductive models, respectively, while the PED and HED arrays yielded worse results of around 13 % to 19 %, respectively. The VED array showed a higher difference in electric fields than both the HED and PED arrays in the two models. Therefore, we suggest that a VED array with a large electrical current would be most conducive leading to the discovery of such minerals during MTER surveys.
  • 关键词:Marine towed electrical resistivity; DC resistivity survey; Sulfide deposits; Methane hydrates; Forward modeling;
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