| 海底大地电磁探测的海洋试验研究 |
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| 引用本文： | 邓明,魏文博,余平,陈宗胜,邓靖武,李立学.海底大地电磁探测的海洋试验研究[J].现代地质,2002,16(4):443-447. |
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| 作者姓名： | 邓明 魏文博 余平 陈宗胜 邓靖武 李立学 |
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| 作者单位： | 1. 中国地质大学,地球物理与信息技术学院,北京,100083
2. 国土资源部,广州海洋地质调查局,广东,广州,510760 |
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| 基金项目： | 国家“8 63”计划研究课题 (82 0 -0 3 -0 4)。 |
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| 摘 要： | 开展海底大地电磁探测需要有一套完善的海上施工方案。为解决海洋环境作业过程中遇到的工程技术问题 ,如探测仪器布放点位的选择、电路初始化设置以及设备的投放与回收方式等等 ,提出了有针对性的解决方法 :利用多波束声纳扫描和抓斗取样技术了解海底地形与底质 ;根据信号的频宽合理选取采集参数 ;研发与海上作业相关的专用硬件产品 ;用声控技术实现设备的回收等等。经过海洋探测试验 ,验证了上述方法的有效性。
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| 关 键 词： | 大地电磁 海洋试验 信号采集 声学释放 |
| 文章编号： | 1000-8527(2002)04-0443-05 |
| 修稿时间： | 2002年3月5日 |
THE MARINE EXPERIMENTS OF SEAFLOOR MAGNETOTELLURIC PROSPECTING |
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| DENG Ming,WEI Wen-bo,YU Ping,CHEN Zong-sheng,DENG Jing-wu,LI Li-xue.THE MARINE EXPERIMENTS OF SEAFLOOR MAGNETOTELLURIC PROSPECTING[J].Geoscience——Journal of Graduate School,China University of Geosciences,2002,16(4):443-447. |
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| Authors: | DENG Ming WEI Wen-bo YU Ping CHEN Zong-sheng DENG Jing-wu LI Li-xue |
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| Institution: | DENG Ming1,WEI Wen-bo1,YU Ping2,CHEN Zong-sheng2,DENG Jing-wu1,LI Li-xue1 |
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| Abstract: | In order to carry out the seafloor magnetotelluric prospecting, a set of perfect operation schemes should be brought forward during the magnetotelluric prospecting. There are some engineer technologies during the operation: selection of positions for the instruments to be located, selection of the cuicirt parameters and putting down and withdrawal of the instruments. In this paper, the corresponding solutions have been given: the topography and the bottom material of the sea-floor could be known by using the multi beam sonar scan and the grab bucket sampling; the rational parameters were selected to make the acquisition go along successfully; the special hardware products corresponding to the marine operation have been developed; the withdrawal of the instruments has been carried out by using the acoustics release technology. The validity of the methods mentioned above had been testified by the marine experiments. |
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| Keywords: | magnetotelluric marine experiment signal acquisition acoustics release |
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