Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL081011 |
Crustal Structure in Alaska From Receiver Function Analysis | |
Zhang, Ying; Li, Aibing; Hui, Hao | |
2019-02-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:3页码:1284-1292 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | New maps of crustal thickness and Vp/Vs in Alaska and western Canada were obtained using P receiver functions recorded at 198 stations from the USArray Transportable Array and the Alaska Regional Network. Our results indicate that topography and Moho depth are correlated as crustal thickness varies from 28 to 43 km across Alaska. A thick crust occurs under the mountains in the south and north with relatively thin crust in central Alaska. The deepest crustal root beneath the Brooks Range may have lost its buoyancy based on Airy isostasy. In addition, a buoyant upper mantle is required to support the high topography in east central Alaska. Vp/Vs is determined between 1.7 and 1.8 beneath most of Alaska except a high average of 1.9 in the south central region. We attribute this high Vp/Vs to the underplating of Yakutat and Pacific oceanic crust. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000462072800019 |
WOS关键词 | SEISMIC VELOCITY STRUCTURE ; SOUTHERN ALASKA ; RANGE ; BASIN ; BORDERLANDS ; TOMOGRAPHY ; TECTONICS ; EVOLUTION ; THICKNESS ; TERRANES |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/181345 |
专题 | 气候变化 |
作者单位 | Univ Houston, Dept Earth & Atmospher Sci, Houston, TX 77204 USA |
推荐引用方式 GB/T 7714 | Zhang, Ying,Li, Aibing,Hui, Hao. Crustal Structure in Alaska From Receiver Function Analysis[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(3):1284-1292. |
APA | Zhang, Ying,Li, Aibing,&Hui, Hao.(2019).Crustal Structure in Alaska From Receiver Function Analysis.GEOPHYSICAL RESEARCH LETTERS,46(3),1284-1292. |
MLA | Zhang, Ying,et al."Crustal Structure in Alaska From Receiver Function Analysis".GEOPHYSICAL RESEARCH LETTERS 46.3(2019):1284-1292. |
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