Progress of seismological research in Antarctica region
-
摘要: 归纳总结了在南极开展地震学研究中的各种主要方法及其研究成果，较全面地介绍了南极地震学研究的现状与进展．首先对南极地震活动性作了简单的介绍，然后分别介绍了利用面波和体波研究地壳上地幔结构的主要成果，最后从地震各向异性的角度归纳介绍了南极大陆部分区域面波方位各向异性及剪切波分裂研究的主要成果．研究表明，南极大陆地震活动性较低、地震强度较小，仅在横贯南极山脉区域、维多利亚地、阿黛利地、威尔克斯地等有较明显的地震活动； 横贯南极山脉将南极大陆分为东南极和西南极两个不同的地质构造区域，东南极地壳和上地幔地震波速度偏高，西南极则偏低；上地幔各向异性较为明显并普遍存在，且西南极各向异性强度稍高于东南极克拉通．
-
关键词:
- 南极 地震学 地震活动性 面波 体波
Abstract: This paper gives a comprehensive review on the progress and current status of seismic research in Antarctica region, including summary of the applied seismic techniques and obtained results. Firstly, we introduce the seismic activity in Antarctica and surrounding area, then we talk about the crust and upper mantle structure constructed by surface wave and body wave inversion. Finally, the seismic anisotropic structures inferred from Rayleigh wave and shear wave splitting in Antarctica are reviewed. These studies have revealed that the seismicity level and earthquake magnitude of the Antarctic plate are relatively low, and obvious seismic activity were only observed at Transantarctic Mountain, Victoria Land, Adelie Land and Wilkes Land. The Transantarctic Mountain divides the Antarctic plate into two different tectonic units, with the crust and upper mantle of West Antarctica having lower seismic velocity and East Antarctica showing higher velocity. Significant seismic anisotropy has also been detected beneath the whole Antarctic plate and the anisotropy strength of the West Antarctica is higher than that of East Antarctica. -
-
-
期刊类型引用(5)
1. 俞慧婷，陈宇乔，杨元德，李斐. 南极冰川地震学研究进展. 地球物理学进展. 2022(05): 1875-1884 . 
百度学术
2. 殷宝玲，刘琪，王叶堂. 1961—2017年南极冰盖近地面风时空变化研究. 冰川冻土. 2021(05): 1383-1399 . 百度学术
3. 刘志云，黄川，于晖，钟振涛，崔福庆. 青藏工程走廊活动层厚度预测模型与分布特征研究. 冰川冻土. 2021(05): 1458-1467 . 百度学术
4. 牛雄伟，高金耀，吴招才，阮爱国，卫小冬，刘晨光，李天光，沈中延，潘少军，罗孝文. 南极洲普里兹湾岩石圈各向异性:海底地震仪观测. 地球科学. 2016(11): 1950-1958 . 百度学术
5. 刘莎，田宝峰，姜旭东，徐志强，郑钰，杨建思. 南极长城站地壳和上地幔各向异性分析. 地震学报. 2014(05): 862-871 . 本站查看
其他类型引用(5)
计量
- 文章访问数: 1856
- HTML全文浏览量: 1094
- PDF下载量: 225
- 被引次数: 10
下载:
