Upper Mantle Seismic Structure of Alaska From Rayleigh and S Wave Tomography
Upper Mantle Seismic Structure of Alaska From Rayleigh and S Wave Tomography
复制标题
从瑞利和 S 波断层扫描看阿拉斯加的上地幔地震结构
DOI:
10.1029/2018gl079406
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发表时间:
2018
影响因子:
5.2
通讯作者:
Worthington, Lindsay L.
中科院分区:
文献类型:
--
作者:
Jiang, Chengxin;Schmandt, Brandon;Ward, Kevin M.;Lin, Fan‐Chi;Worthington, Lindsay L.
Mantle shear velocity (Vs) structure beneath the Transportable Array (TA) in Alaska and northwestern Canada is imaged by joint inversion of Rayleigh wave dispersion and teleseismicSwave travel times. The study connects previously unsampled parts of northern and western Alaska with portions of southern Alaska imaged with earlier seismic arrays. The new Vs tomography shows contrasting lithospheric structure in the plate interior with lower Vs shallow upper mantle indicative of thinner thermal lithosphere south of the Brooks Range and along the transform margin. Higher Vs down to ~200 km beneath the Brooks Range and northern coast is consistent with the presence of a cold stable lithospheric root that may help guide intraplate deformation to the south. In the subduction‐to‐transform transition, a potential slab fragment is imaged beneath the Wrangell volcanic field where modern subduction has slowed due to the thick buoyant crust of the Yakutat terrane.
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影响因子:
2.9
作者:
J. Spotila;Aaron Berger
通讯作者:
Aaron Berger
DOI:
10.1029/2018jb015967
发表时间:
2018-10
期刊:
Journal of Geophysical Research: Solid Earth
影响因子:
--
作者:
K. Ward;F. Lin
通讯作者:
K. Ward;F. Lin
DOI:
--
发表时间:
2022
期刊:
影响因子:
--
作者:
Sakane Fumio;Hoshino Fumi;Murakami Chiaki;植松 祐真
通讯作者:
植松 祐真
影响因子:
--
作者:
L. Leonard;S. Mazzotti;R. Hyndman
通讯作者:
R. Hyndman
影响因子:
5.8
作者:
T. Redfield;D. Scholl;P. Fitzgerald;M. Beck
通讯作者:
M. Beck