Results 71 to 80 of about 2,719 (188)

Accretion of the cratonic mantle lithosphere via massive regional relamination. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Wang Z, Capitanio FA, Wang Z, Kusky TM.
europepmc   +1 more source

Interface Deformation, Exhumation, and Underplating: The Role of Plate Velocity Changes Throughout the Evolution of a Subduction Zone

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Exhumed metamorphic rocks yield critical insights into the mechanical, chemical, and thermal structure of the plate interface that can be used to infer exhumation pathways and their evolution throughout a subduction zone's lifetime. Metamorphosed oceanic rocks often record exhumation and underplating over relatively punctuated time periods ...
Valeria Turino   +4 more
wiley   +1 more source

Melt Focusing Along Permeability Barriers at Subduction Zones and the Location of Volcanic Arcs

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Fluids released from dehydration reactions occurring in subducting slabs trigger partial melting in the mantle wedge. The resulting magma rises through the overlying mantle wedge and lithosphere and forms arc volcanoes at subduction zones.
Goeun Ha   +2 more
doaj   +1 more source

The Origin of Carbonate Magmas Predating and Accompanying Main‐Phase LIPs Eruptions

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Some large igneous provinces (LIPs) are associated with precursory carbonatite eruptions. Models for precursory carbonatites invoking partial melting of a carbonate metasomatized lithosphere appear implausible, given the long time needed for heat conduction from the plume head.
Cinzia G. Farnetani, Mark A. Richards
wiley   +1 more source

Flexural and Membrane Stresses in Doubly Curved Subducting Slabs

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract A subducting slab is a thin doubly curved shell with a complex shape that deforms in interaction with the surrounding mantle. Such a shell can deform in two distinct ways: by in‐plane stretching and shear (“membrane” deformation) and by bending and twisting (“flexural” deformation).
Gianluca Gerardi, Yida Li, Neil M. Ribe
wiley   +1 more source

The role of an oxidized lithospheric mantle in gold mobilization

open access: yesScience Advances
Phanerozoic orogenic gold mineralization at craton margins is related to the metasomatism of the lithospheric mantle by crustal material. Slab subduction transfers Au from the crust to the metasomatized mantle and oxidizes the latter to facilitate the mobilization of Au into mantle melts. The role of volatiles in the mobilization of Au in the mantle is
Kun-Feng Qiu   +10 more
openaire   +4 more sources

Birth of an ocean in the Red Sea: Initial pangs

open access: yesGeochemistry, Geophysics, Geosystems, 2012
We obtained areal variations of crustal thickness, magnetic intensity, and degree of melting of the sub‐axial upwelling mantle at Thetis and Nereus Deeps, the two northernmost axial segments of initial oceanic crustal accretion in the Red Sea, where ...
Marco Ligi   +8 more
doaj   +1 more source

Non‐Uniqueness, Symmetries and Invariance of Thermal History Modelling in Sedimentary Basins

open access: yesBasin Research, Volume 38, Issue 4, July–August 2026.
This paper approaches non‐unique inverse problems by generating a representative ensemble of all possible solutions using the concept of symmetry. In the context of basin modelling, a symmetry is any manipulation of a forward model's parameters (e.g., thermal history) that leaves the model output (e.g., downhole vitrinite reflectance) unchanged ...
J. Xiao, D. Waltham, Y. Wang
wiley   +1 more source

A HIMU‐Like Endmember Hiding in the Turkana Depression Continental Lithospheric Mantle

open access: yesGeochemistry, Geophysics, Geosystems
The fate of continental lithosphere during rifting is central to the process of continental extension. The continental lithospheric mantle comprises both depleted and enriched domains that may contribute to magma generation during extension.
Andrew R. Bollinger   +3 more
doaj   +1 more source

Ridge Migration and Plate Boundary Readjustments at the Rodriguez Triple Junction

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The Rodriguez Triple Junction (RTJ) marks the intersection of the Indian Ocean's three principal mid‐ocean ridges and is a type locality for Ridge‐Ridge‐Ridge triple junctions. A local seismic network was deployed for 8 months to monitor seismicity around the RTJ and the adjacent Central Indian Ridge (CIR).
A. Jegen   +6 more
wiley   +1 more source

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