Crustal radial anisotropy beneath Cameroon from ambient noise tomography

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• 作者：Adebayo Oluwaseun Ojo^a ; ^b ; ^{ojo@mail.ustc.edu.cn} ; ^{aoojo@unilag.edu.ng} ; Sidao Ni^c ; ^{sdni@whigg.ac.cn} ; Zhiwei Li^c ; ^{zwli@whigg.ac.cn}
• 关键词：Crustal radial anisotropy ; Ambient noise tomography ; Cameroon ; Crustal deformation
• 刊名：Tectonophysics
• 出版年：2017
• 出版时间：31 January 2017
• 年：2017
• 卷：696-697
• 期：Complete
• 页码：37-51
• 全文大小：3598 K
• 卷排序：696

文摘

For the first time, a 3-D crustal radial anisotropy model was developed for Cameroon using Ambient Noise Tomography. In the upper crust, we found strong positive (Vsh > Vsv) radial anisotropy in the Oubanguides Belt. The middle crust is characterized by a widespread negative (Vsh < Vsv) radial anisotropy. The magnitude of radial anisotropy changes from negative in the middle crust to positive in the lower crust. The magnitude of radial anisotropy changes from negative in the middle crust to positive in the lower crust.