Results 81 to 90 of about 2,719 (188)

Water in Hawaiian peridotite minerals: A case for a dry metasomatized oceanic mantle lithosphere

Geochemistry, Geophysics, Geosystems, 2015
The distribution of water concentrations in the oceanic upper mantle has drastic influence on its melting, rheology, and electrical and thermal conductivities and yet is primarily known indirectly from analyses of OIB and MORB.
Anne H. Peslier, Michael Bizimis
doaj   +1 more source

Seismic Evidence for Slab Tearing Beneath the Indo‐Myanmar Subduction Zone

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Slab tearing has been increasingly recognized as a key geodynamic process influencing the evolution of the eastern Himalayan syntaxis. However, whether, where and how the subducted Indian slab beneath the Indo‐Myanmar subduction zone has been torn remains poorly constrained.
Shun Yang, Yumei He, Mingming Jiang, Xiaofeng Liang, Jien Zhang, Chit Thet Mon, Yuan Ling, Guangbing Hou, Myo Thant, Kyaing Sein   +9 more
wiley   +1 more source

East European sedimentary basins long heated by a fading mantle upwelling

Nature Communications
A strong negative anomaly of seismic wave velocities at the core-mantle boundary (the Perm Anomaly) beneath the East European platform is attributed to the remnant of a deep mantle upwelling.
Alik Ismail-Zadeh, Anne Davaille, Jean Besse, Yuri Volozh   +3 more
doaj   +1 more source

Generation Mechanisms of Intermediate‐Depth and Deep Earthquakes in Southwestern Japan: Implications for the Tearing or Thinning of the Pacific Slab

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract We performed a stress tensor inversion using focal mechanisms from intermediate‐depth and deep earthquakes to estimate the stress regime of the Pacific slab beneath southwestern Japan. We focused on the temporally averaged stress field derived from the recent 28‐year data set of the F‐net CMT solutions.
Asami Kimura, Shoichi Yoshioka
wiley   +1 more source

Lithosphere‐Asthenosphere Interactions Across the Indo‐Burma Subduction Zone From Sp Receiver Functions

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The Cenozoic convergence between the Indian and Asian plates has driven large‐scale mantle convection that interacts with both plates. Understanding this convergence benefits from clear imaging of the lithosphere‐asthenosphere boundary (LAB).
Yiming Bai, Xiaohui Yuan, Frederik Tilmann, Bernd Schurr, Yinshuang Ai, Yumei He, Shengji Wei, Guangbing Hou, Myo Thant, Kyaing Sein, Oo Than, Mingming Jiang, Ping Tong   +12 more
wiley   +1 more source

The Role of Mafic Intrusion in Seismotectonics: Insights From the 1668 M 8.5 Tancheng Earthquake Rupture Zone Along the Tan‐Lu Fault Zone, Eastern China

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The Tan‐Lu Fault Zone (TLFZ), the largest lithosphere‐scale strike‐slip fault in eastern China, has experienced multiple tectonic stages and remains high seismic activity, including the 1668 Tancheng earthquake (M 8.5). Here we employ dense‐array receiver functions to resolve crustal thickness, Vp/Vs ratio, and seismic discontinuities in the ...
Yuchen Huang, Huajian Yao, Mengxuan Yan, Shengzhe Zhao, Yichen Pan, Guili Zhou, Bohan Zhang   +6 more
wiley   +1 more source

The Indian Plate subducting below the Tibet Plateau is tearing apart

Communications Earth & Environment
The first-order configuration of the Himalayan orogen is defined by northward motion of the Indian plate, whether directly underplating Tibetan crust or subducting beneath a mantle wedge.
Lin Liu, Danian Shi, Simon L. Klemperer
doaj   +1 more source

Integrated Geophysical Imaging Reveals the Origin and Pathways of Mantle‐Derived CO2 Beneath the Tangra Yumco Rift, Central Tibet

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The Tangra Yumco Rift (TYR) in central Tibet is a key window for crust–mantle interactions during extension. We performed high‐resolution crust‐mantle imaging using receiver function analysis, 1‐D nonlinear S‐wave velocity inversion, and tomoDD tomography, revealing a vertical Crust–Mantle Degassing System (CMDS) bounded by the Zhala (ZF) and ...
Zongxu Li, Rizheng He, Hanhan Tang, Qiang Xu, Lei Gao, Yulan Li, Lihui Tan, Xiao Niu, Ruo Jia   +8 more
wiley   +1 more source

Integrated geophysical‐petrological modeling of lithosphere‐asthenosphere boundary in central Tibet using electromagnetic and seismic data

Geochemistry, Geophysics, Geosystems, 2014
We undertake a petrologically driven approach to jointly model magnetotelluric (MT) and seismic surface wave dispersion (SW) data from central Tibet, constrained by topographic height. The approach derives realistic temperature and pressure distributions
Jan Vozar, Alan G. Jones, Javier Fullea, Matthew R. Agius, Sergei Lebedev, Florian Le Pape, Wenbo Wei   +6 more
doaj   +1 more source

Density and strength variations in the mantle lithosphere affect the distribution of intraplate earthquakes

Communications Earth & Environment
The distribution of earthquakes in stable intracontinental tectonic settings is typically far more diffuse than along plate boundaries and the causative mechanisms underlying some recognizable clustering are not understood.
Judith Bott, Magdalena Scheck-Wenderoth, Ajay Kumar, Mauro Cacace, Sebastian Noe, Jan Inge Faleide   +5 more
doaj   +1 more source