Constraints on subduction geodynamics from seismic anisotropy

MD Long - Reviews of Geophysics, 2013 - Wiley Online Library
Much progress has been made over the past several decades in delineating the structure of
subducting slabs, but several key aspects of their dynamics remain poorly constrained …

Crystal preferred orientations of olivine, orthopyroxene, serpentine, chlorite, and amphibole, and implications for seismic anisotropy in subduction zones: a review

H Jung - Geosciences Journal, 2017 - Springer
This study provides a comprehensive review of the crystal preferred orientation (CPO) of
olivine and orthopyroxene in the upper mantle, and of several hydrous minerals in the …

P wave tomography and anisotropy beneath Southeast Asia: Insight into mantle dynamics

Z Huang, D Zhao, L Wang - Journal of Geophysical Research …, 2015 - Wiley Online Library
Southeast Asia is surrounded by subduction zones resulting from the interactions of several
lithospheric plates. Its evolution has been also influenced by active tectonics due to the Indo …

Mantle Dynamics of Western Pacific and East Asia: New Insights from P Wave Anisotropic Tomography

J Ma, Y Tian, D Zhao, C Liu, T Liu - Geochemistry, Geophysics …, 2019 - Wiley Online Library
Seismic anisotropy records past and present tectonic deformations and provides important
constraints for understanding the structure and dynamics of the Earth's interior. In this work …

Big mantle wedge and intraplate volcanism in Alaska: Insight from anisotropic tomography

X Liang, D Zhao, Y Hua, YG Xu - Journal of Geophysical …, 2024 - Wiley Online Library
We determine high‐resolution tomographic models of isotropic P‐wave velocity (Vp) and
tilting‐axis anisotropy of the Alaska subduction zone using a large number of local and …

Depth variations of P-wave azimuthal anisotropy beneath Mainland China

W Wei, D Zhao, J Xu, B Zhou, Y Shi - Scientific Reports, 2016 - nature.com
A high-resolution model of P-wave anisotropic tomography beneath Mainland China and
surrounding regions is determined using a large number of arrival-time data recorded by the …

Slab Geometry and Upper Mantle Flow Patterns in the Central Mediterranean From 3D Anisotropic P‐Wave Tomography

F Rappisi, BP VanderBeek, M Faccenda… - Journal of …, 2022 - Wiley Online Library
We present the first three‐dimensional (3D) anisotropic teleseismic P‐wave tomography
model of the upper mantle covering the entire Central Mediterranean. Compared to isotropic …

South-American plate advance and forced Andean trench retreat as drivers for transient flat subduction episodes

G Schepers, DJJ Van Hinsbergen, W Spakman… - Nature …, 2017 - nature.com
At two trench segments below the Andes, the Nazca Plate is subducting sub-horizontally
over∼ 200–300 km, thought to result from a combination of buoyant oceanic-plateau …

Ubiquitous lower-mantle anisotropy beneath subduction zones

AMG Ferreira, M Faccenda, W Sturgeon, SJ Chang… - Nature …, 2019 - nature.com
Seismic anisotropy provides key information to map the trajectories of mantle flow and
understand the evolution of our planet. While the presence of anisotropy in the uppermost …

Imaging upper mantle anisotropy with traveltime and splitting intensity observations from teleseismic shear waves: insights from tomographic reconstructions of …

BP VanderBeek, RL Bue, F Rappisi… - Geophysical Journal …, 2023 - academic.oup.com
Teleseismic traveltime tomography remains one of the most popular methods for obtaining
images of Earth's upper mantle. However, despite extensive evidence for an elastically …