| Controlled source time domain electromagnetic methods for seafloor electric conductivity mapping |
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| 作者姓名： | YANG Jian wen R.N.Edwards Geophysics Division |
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| 作者单位： | YANG Jian wen，R.N.Edwards Geophysics Division，Department of Physics，University of Toronto，Toronto，Ontario，M5S 1A7，Canada |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＯｖｅｒｔｈｒｅｅ ｆｉｆｔｈｓｅａｒｔｈ’ｓｓｕｒｆａｃｅｉｓｃｏｖｅｒｅｄｂｙｏ ｃｅａｎｓ .Ｔｈｏｕｇｈｐｅｔｒｏｌｅｕｍｉｓｐｒｏｄｕｃｅｄｆｒｏｍｈｕｇｅｄｅ ｐｏｓｉｔｓｏｎｔｈｅｓｈａｌｌｏｗｃｏｎｔｉｎｅｎｔａｌｓｈｅｌｆ,ｔｈｅｉｍｍｅｎｓｅａｒｅａｏｆｔｈｅｏｃｅａｎｒｅｐｒｅｓｅｎｔｓａｌａｒｇｅｌｙｕｎｅｘｐｌｏｒｅｄａｎｄｕｎｅｘｐｌｏｉｔｅｄｖｉｒｇｉｎｇｒｏｕｎｄｒｅｓｅｒｖｉｎｇａｓｔｏｒｅｏｆｍｉｎｅｒａｌｒｅｓｏｕｒｃｅｓｅ .ｇ .ｍｕｌ…
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Controlled source time-domain electromagnetic methods for seafloor electric conductivity mapping |
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| YANG Jian wen,R.N.Edwards Geophysics Division,.Controlled source time domain electromagnetic methods for seafloor electric conductivity mapping[J].Transactions of Nonferrous Metals Society of China,2000,10(2). |
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| Authors: | YANG Jian-wen RNEdwards |
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| Abstract: | Theoretical studies of some controlled source electromagnetic methods, especially the horizontal coaxial magnetic dipole dipole and horizontal collinear electric dipole dipole electromagnetic methods, which are capable of accurately measuring the relatively low conductivity of the seafloor were reviewed. Marine electromagnetic instrumentations, especially the time domain horizontal magnetic dipole dipole system and horizontal electric dipole dipole system which have been designed and constructed in the Geophysics Division of the University of Toronto, were provided with applications to geotechnical studies on the shelf and deep ocean surveys near the mid ocean ridges. |
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| Keywords: | seafloor resources electric conductivity maping instruments |
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