Results 71 to 80 of about 2,719 (188)
Accretion of the cratonic mantle lithosphere via massive regional relamination. [PDF]
Wang Z, Capitanio FA, Wang Z, Kusky TM.
europepmc +1 more source
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
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
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
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
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
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
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
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
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

