Crustal Structure of the Gulf of Aden Continental Margins, from Afar to Oman, by Ambient Noise Seismic Tomography

F Korostelev, Kees Weemstra, Lapo Boschi, S.D. Leroy,, Y. Ren, G.W. Stuart, D. Keir, F. Rolandone, A. Ahmed, I. Al Ganad, K.M. Khanbari, C. Doubre, J.O.S. Hammond, J.M. Kendall

Research output: Contribution to conferenceAbstractScientific

Abstract

Continental rupture processes under mantle plume influence are still poorly known although extensively studied. The Gulf of Aden presents volcanic margins to the west, where they are influenced by the Afar hotspot, and non volcanic margins east of longitude 46° E. We imaged the crustal structure of the Gulf of Aden continental margins from Afar to Oman to evaluate the role of the Afar plume on the evolution of the passive margin and its extent towards the East. We use Ambient Noise Seismic Tomography to better understand the architecture and processes along the Gulf of Aden. This recent method, developed in the last decade, allows us to study the seismic signal propagating between two seismic stations. Ambient Noise Seismic Tomography is thus free from artifacts related to the distribution of earthquakes. We collected continuous records from about 200 permanent or temporary stations since 1999 to compute Rayleigh phase velocity maps over the Gulf of Aden.
Original languageEnglish
Publication statusPublished - 2014
EventAGU fall meeting 2014 - San Francisco, San Francisco, United States
Duration: 13 Dec 201419 Dec 2014

Conference

ConferenceAGU fall meeting 2014
CountryUnited States
CitySan Francisco
Period13/12/1419/12/14

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