Results 121 to 130 of about 315,024 (237)

State of Stress in Subduction Zone Forearcs: Influence of the Mantle Wedge Corner and Serpentinization

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract We investigate the role of the elasticity and density of the forearc mantle wedge corner on the stress distribution in the forearc region of subduction zones, using numerical quasi‐2D lithospheric deformation models for the Cascadia, Nankai, NE Japan, and Costa Rica subduction zones. We incorporate the forearc mantle wedge corner as an elastic
Viven Sharma, Ikuko Wada
wiley   +1 more source

Light oxygen isotopes in mantle-derived magmas reflect assimilation of sub-continental lithospheric mantle material. [PDF]

Nat Commun, 2021
Xu JY, Giuliani A, Li QL, Lu K, Melgarejo JC, Griffin WL.   +5 more
europepmc   +1 more source

Tracing Mantle Upwellings Beneath Changbaishan/Mount Paektu: New Insights From Transition Zone Discontinuity Structure

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Intraplate volcanism in Northeast Asia, located in a distant back‐arc setting, challenges conventional models of mantle convection and volatile cycling. Using receiver function data from over 300 broadband stations, we image the mantle transition zone (MTZ) beneath the Changbaishan/Paektu volcano.
Cunrui Han, Weiqian Yu, James O. S. Hammond, David P. Dobson, He Tan, You Tian, Wei Wei   +6 more
wiley   +1 more source

Lithospheric Foundering in Progress Imaged Under an Extinct Continental Arc

Geophysical Research Letters
A long‐standing question is how felsic continental crust is differentiated from its mafic parent mantle magmas. One currently proposed fundamental mechanism is lithospheric foundering and loss of dense material into the mantle.
Vera Schulte‐Pelkum, Deborah Kilb
doaj   +1 more source

Migration of Seismicity from the Mantle to the Upper Crust Beneath Harrat Lunayyir Volcanic Field, Saudi Arabia

Seismica
Harrat Lunayyir is a volcanic field in Saudi Arabia that experienced a Mw~5.4 earthquake driven by an upper-crustal dike intrusion in May 2009. This volcanic field has exhibited numerous forms of volcanic seismicity both prior to and since the 2009 dike
Alexander Blanchette, Simon Klemperer, Walter Mooney, Turki Sehli   +3 more
doaj   +1 more source

Late Mesozoic mafic magmatism from the North China Block: constraints on chemical and isotopic heterogeneity of the subcontinental lithospheric mantle

, 2005
Available major, trace element and Sr-Nd isotope data for the late Mesozoic mafic rocks in the eastern North China Block (NCB) show chemical and isotopic differences between rocks from different tectonic units.
Zhang HF, Guo F, Fan WM, Wang YJ
core   +1 more source

Low steady-state stresses in the cold lithospheric mantle inferred from dislocation dynamics models of dislocation creep in olivine

, 2015
International audienceTransmission electron microscopy observations on olivine crystals deformed at moderate (≤1273 K) temperature evidenced dislocations interactions explaining the hardening observed in the experiments, but also recovery mechanisms by ...
Cordier, Patrick, Demouchy, Sylvie, Mussi, Alexandre, Boioli, Francesca, Tommasi, Andrea   +4 more
core   +1 more source

Age-dependent seismic thickness and mechanical strength of the Australian lithosphere [PDF]

, 2002
We present constraints on the regional variations of the seismic and mechanical thickness of the Australian lithosphere. We infer the seismic thickness from a waveform tomographic model of S-wave speed, and as a proxy for the elastic thickness we use the
Simons, FJ, van der Hilst, RD
core  

Mantle strength of the San Andreas fault system and the role of mantle-crust feedbacks [PDF]

, 2015
In lithospheric-scale strike-slip fault zones, upper crustal strength is well constrained from borehole observations and fault rock deformation experiments, but mantle strength is less well known. Using peridotite xenoliths, we show that the upper mantle
Drury, M.R., Tikoff, B., Chatzaras, V., Newman, J., Withers, A.C., Structural geology and EM, Research Programme in Earth Sciences Utrecht (DES / IVAU), EU-RHEOMANTLE: Evolution of mantle rheology in exhumed strike-slip faults   +7 more
core  

LITHOSPHERE MANTLE DENSITY BENEATH THE SIBERIAN CRATON [PDF]

Geological Society of America Abstracts with Programs, 2016
Cherepanova, Yulia, Artemieva, Irina
openaire   +2 more sources