| 东南极普里兹湾海冰面地磁考察 |
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| 引用本文： | 焦丞民,孔祥儒,刘成恕.东南极普里兹湾海冰面地磁考察[J].极地研究,1996,8(2):55-61. |
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| 作者姓名： | 焦丞民 孔祥儒 刘成恕 |
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| 作者单位： | 中国科学院地球物理研究所，中国科学院测量与地球物理研究所 |
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| 摘 要： | 中国第九次南极考察期间在中山站北部普里兹湾中面积约１３２ｋｍ２的测区内进行了地磁测量，为日后的南极内陆考察作前期准备。磁测资料表明，这里有一个宽约５－８ｋｍ、走向ＮＷ的磁异常，其幅度达５００ｎＴ。磁异常可能是由深成岩浆的侵入体或富含磁铁矿的地质体引起的，磁源物体的埋深在海冰面以下０．３－２．０ｋｍ。考察实践证明：只要经过充分准备，利用普里兹湾冬季冰封的有利条件，开展大范围的海冰面地球物理考察，在技术上是可行的。
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| 关 键 词： | 南极 普里兹湾 中山站 地磁测量 磁异常 |
A GEOMAGNETIC SURVEY ON FROZEN SEA NEAR ZHONGSHAN STATION,PRYDZ BAY,ANTARCTICA |
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| Jiao Chengmin and Kong Xiangru.A GEOMAGNETIC SURVEY ON FROZEN SEA NEAR ZHONGSHAN STATION,PRYDZ BAY,ANTARCTICA[J].Chinese Journal of Polar Research,1996,8(2):55-61. |
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| Authors: | Jiao Chengmin and Kong Xiangru |
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| Abstract: | As a preparation for future inland investigation in Antarctica,a geomagnetic survey was conducted during the 9th voyage of Chinese National Antarctic Research Expedition(1992/1993).The survey area covering about 132km 2 is located in north of Zhongshan Station,Prydz Bay.The results show that there is a NW direction anomaly with 5-8 km width and 500nT in amplitude.The anomaly is probably caused by a plutonic mass or a magnetite rich body,which is located at depth of 0.3-2.0km under the sea level.It has been proved that a large range geophysical survey on frozen sea of Prydz Bay is fully feasible in Antarctic winter. |
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| Keywords: | s Prydz Bay Zhongshan Station geomagnetic survey magnetic anomaly |
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