| DOI: | 10.1016/j.gloplacha.2014.08.018
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| 论文题名: | The deep seismic structure of the Earth's crust along the Antarctic Peninsula-A summary of the results from Polish geodynamical expeditions |
| 作者: | Janik T.; Grad M.; Guterch A.; Środa P.
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| ISSN: | 0921-8389
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| 出版年: | 2014
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| 卷: | 123 | | 起始页码: | 213
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| 结束页码: | 222
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| 语种: | 英语
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| 英文关键词: | Antarctic Peninsula
; Bransfield Strait
; Crustal structure
; Moho depth
; Subduction zone
; West Antarctica
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| Scopus关键词: | Seismic waves
; Seismology
; Antarctic Peninsula
; Bransfield Strait
; Crustal structure
; Moho depth
; Subduction zones
; West antarctica
; Structural geology
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| 英文摘要: | A summary of the results of four Polish geophysical expeditions, which constituted an extensive programme of seismic wide-angle refraction experiments in the northern Antarctic Peninsula region between 1979 and 1991, is analysed here. The results include the interpretation of 20 deep seismic sounding profiles located along the western coast of the Antarctic Peninsula. Additionally, a few shallow seismic profiles in the Deception Island area and a total of 10 reflection profiles from the Bransfield Strait and Drake Passage area were carried out. Crustal velocity models extending across the Antarctic Peninsula continental shelf between the Adelaide Island and the Bransfield Strait show a typical continental crustal structure, with crustal thicknesses of 36-42. km near the coast that decreases to 25-28. km beneath the outer continental shelf. Farther north in the Bransfield Strait region, the models document a southeastward dip of the Moho discontinuity from a depth of 12 km beneath the South Shetland Trench to 40 km under the northern tip of the Antarctic Peninsula. Beneath the trough of the Bransfield Strait, a high-velocity body with P-wave velocities exceeding 7.0. km/s was detected in a depth range of 6-32. km. © 2014 Elsevier B.V. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84954444212&doi=10.1016%2fj.gloplacha.2014.08.018&partnerID=40&md5=e6549652c13451abb9687e9e181f46b1
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/11295
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| Appears in Collections: | 全球变化的国际研究计划
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作者单位: | Institute of Geophysics, Polish Academy of Sciences, Ks. Janusza 64, Warsaw, Poland
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| Recommended Citation: | |
Janik T.,Grad M.,Guterch A.,et al. The deep seismic structure of the Earth's crust along the Antarctic Peninsula-A summary of the results from Polish geodynamical expeditions[J],2014-01-01,123.
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