| A group velocity of seismic love surface wave and lithosphere structure in Antarctic Peninsula |
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| 作者姓名： | 束沛镒 胡家富 滕吉文 张中杰 焦承民 |
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| 摘 要： | ＡｇｒｏｕｐｖｅｌｏｃｉｔｙｏｆｓｅｉｓｍｉｃｌｏｖｅｓｕｒｆａｃｅａｖｅａｎｄｌｉｔｈｏｓｐｈｅｒｅｓｔｒｕｃｔｕｒｅｉｎＡｎｔａｒｃｔｉｃＰｅｎｉｎｓｕｌａTX＠束沛镒＠胡家富＠滕吉文＠张中杰＠焦承民Ａｇｒｏｕｐｖｅｌｏｃｉｔｙｏｆｓｅｉｓｍｉｃｌｏｖｅ...
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A group velocity of seismic love surface wave and lithosphere structure in Antarctic Peninsula |
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| Abstract: | This paper is based on the surface wave seismogram of South Sandwich Island earthquake(Ms=6.4) recorded by Antarctic General Bernardo O'Higgins Station. We computed a group velocity dispersion of Love surface wave and obtained lithosphere structure by using the method of the matched filter frequency time analysis and grid dispersion inversion. Our result shows that crust structure below Antarctic Peninsula may be divided into three layers and their thickness are respectively 5 km,8 km and 10 km. Upper mantle velocity is 5.32 km/s and gradually changes into 5.11 4.9 km/s below 53 km.The mininum velocity is 4.8 km/s. It can be referred that Antarctic mantle is also of layered structure. |
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