دورية أكاديمية
أعرض في EDS

P and S Wave Anisotropic Tomography of the Banda Subduction Zone

التفاصيل البيبلوغرافية
العنوان: P and S Wave Anisotropic Tomography of the Banda Subduction Zone
المؤلفون: Yuanyuan Hua, Dapeng Zhao, Yi‐Gang Xu
المصدر: Geophysical Research Letters, Vol 50, Iss 18, Pp n/a-n/a (2023)
بيانات النشر: Wiley, 2023.
سنة النشر: 2023
المجموعة: LCC:Geophysics. Cosmic physics
مصطلحات موضوعية: seismic tomography, seismic anisotropy, anisotropic tomography, Banda slab, S wave anisotropy, curved slab, Geophysics. Cosmic physics, QC801-809
الوصف: Abstract In subduction zones with slab‐slab interactions, the pattern of mantle convection is very complex and still unclear. In this study, we jointly invert a large number of P and S wave arrival time data of local earthquakes for 3‐D isotropic and anisotropic velocity structures of the Banda subduction zone. Along the curved Banda arc, the subducting Indo‐Australian slab is detected clearly as a high‐velocity zone, and its azimuthal anisotropy changes along the arc strike, representing fossil anisotropy within the slab and modified anisotropy by the subduction processes. Around the northern edge of the Banda slab, a semi‐toroidal pattern of anisotropy appears in low‐velocity anomalies, representing mantle flow extruded from the Banda arc and escaped from a gap of the Banda‐Molucca slab toward the northeast. Our 3‐D anisotropic tomography uncovers the mantle convection pattern induced by the slab‐slab interactions, shedding new light on the complex dynamical processes in this curved subduction zone.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1944-8007
0094-8276
Relation: https://doaj.org/toc/0094-8276; https://doaj.org/toc/1944-8007
DOI: 10.1029/2023GL105611
URL الوصول: https://doaj.org/article/9b7307d5307c453494151b399d280663
رقم الأكسشن: edsdoj.9b7307d5307c453494151b399d280663
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:19448007
00948276
DOI:10.1029/2023GL105611