DOI: 10.1002/2016GL070529
论文题名: The crustal structure beneath Mauritius from teleseismic P-receiver functions - oceanic or continental?
作者: Singh M. ; Kaviani A. ; Rümpker G.
刊名: Geophysical Research Letters
ISSN: 0094-8623
EISSN: 1944-8354
出版年: 2016
卷: 43, 期: 18 起始页码: 9636
结束页码: 9643
语种: 英语
英文关键词: Mascarene plateau
; Mauritius
; Moho
; Receiver functions
; Underplating
Scopus关键词: Earth sciences
; Geophysics
; Mascarene plateau
; Mauritius
; Moho
; Receiver functions
; Underplating
; Structural geology
英文摘要: It has recently been suggested that the volcanic island of Mauritius may be underlain by a remnant of continental origin termed “Mauritia”. To constrain the crustal thickness beneath Mauritius, we analyzed data from 11 land stations, 10 of which were deployed recently by the RHUM-RUM project. From the recordings, we obtained 382 P-receiver functions (RFs). By applying the H-κ stacking technique, we derive crustal thicknesses of approximately 10–15 km. We observe a considerable variation in the Vp/Vs-ratio caused by a lack of clear multiples. Using forward modeling of RFs, we show that the lack of clear multiples can be explained by a transitional Moho, where the velocity increases gradually. The modeling further indicates that the thickness of this gradient zone is estimated to be approximately 10 km. We argue that our findings suggest oceanic crust thickened by crustal underplating due the mantle plume currently located beneath the La Réunion. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84990062983&doi=10.1002%2f2016GL070529&partnerID=40&md5=54cb2bf9f31c27740fbf7e217353e4ac
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9586
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Institute of Geosciences, Goethe-University Frankfurt, Frankfurt am Main, Germany
Recommended Citation:
Singh M.,Kaviani A.,Rümpker G.. The crustal structure beneath Mauritius from teleseismic P-receiver functions - oceanic or continental?[J]. Geophysical Research Letters,2016-01-01,43(18).