Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL081742 |
The Mantle Transition Zone in Fennoscandia: Enigmatic High Topography Without Deep Mantle Thermal Anomaly | |
Makushkina, Anna1; Tauzin, Benoit1,2; Tkalcic, Hrvoje1; Thybo, Hans3,4,5 | |
2019-04-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:7页码:3652-3662 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia; France; Turkey; Peoples R China; Norway |
英文摘要 | Seismological data acquired by dense receiver networks in Fennoscandia enable imaging of Earth's upper mantle structure at unprecedented resolution and provide critical observations for resolving the ongoing debate on the cause of enigmatic high topography in Norway. Proposed mechanisms for the high topography include impact of a mantle plume, as supported by the observation of low seismic velocities in the uppermost mantle in southern Norway in contrast to high velocities in Sweden. We image the mantle transition zone (MTZ) in Fennoscandia by common conversion point stacking of 14,873 receiver functions from 14 networks including the recently deployed ScanArray. We find both MTZ discontinuities at their expected depths of 410 and 660 km within an uncertainty of 5-15 km and the thickness of the MTZ similar to the global average. These observations show that the high topography in western Scandinavia cannot be caused by thermal influence from the deep mantle. |
英文关键词 | mantle transition zone receiver functions Baltic Shield Fennoscandia |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000465836200010 |
WOS关键词 | RECEIVER FUNCTION-ANALYSIS ; LOW-VELOCITY LAYER ; SEISMIC EVIDENCE ; SOUTHERN NORWAY ; NORTH-ATLANTIC ; PHASE-TRANSFORMATIONS ; PROTEROZOIC BOUNDARY ; JOINT-INVERSION ; NEOGENE UPLIFT ; S-VELOCITY |
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/182358 |
专题 | 气候变化 |
作者单位 | 1.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT, Australia; 2.Univ Lyon, UCBL, ENS Lyon, CNRS,Lab Geol Lyon,Terre,Planetes,Environm, Villeurbanne, France; 3.Istanbul Tech Univ, Eurasia Inst Earth Sci, Istanbul, Turkey; 4.China Univ Geosci, Sch Earth Sci, Wuhan, Hubei, Peoples R China; 5.Univ Oslo, CEED, Oslo, Norway |
推荐引用方式 GB/T 7714 | Makushkina, Anna,Tauzin, Benoit,Tkalcic, Hrvoje,et al. The Mantle Transition Zone in Fennoscandia: Enigmatic High Topography Without Deep Mantle Thermal Anomaly[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(7):3652-3662. |
APA | Makushkina, Anna,Tauzin, Benoit,Tkalcic, Hrvoje,&Thybo, Hans.(2019).The Mantle Transition Zone in Fennoscandia: Enigmatic High Topography Without Deep Mantle Thermal Anomaly.GEOPHYSICAL RESEARCH LETTERS,46(7),3652-3662. |
MLA | Makushkina, Anna,et al."The Mantle Transition Zone in Fennoscandia: Enigmatic High Topography Without Deep Mantle Thermal Anomaly".GEOPHYSICAL RESEARCH LETTERS 46.7(2019):3652-3662. |
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