Results 101 to 110 of about 41,648 (236)
Seismic Imaging Reveals Ongoing Modification of Craton Margins in Northeast Asia
Abstract Cratonic margins are commonly modified, yet the processes responsible remain debated. The Korean Peninsula, situated between adjacent cratons, the Japan Trench, and a back‐arc system, provides a natural setting to investigate this problem. Using 4 years of dense seismic observations, we image upper‐mantle structure beneath the peninsula with P‐
Hwaju Lee +3 more
wiley +1 more source
The Pleistocene (1.65 Ma) Crystal Knob volcanic neck in the California Coast Ranges is an olivine‐plagioclase phyric basalt containing dunite and spinel peridotite xenoliths.
D. P. Quinn +4 more
doaj +1 more source
Tectonic evolution of a continental collision zone: A thermomechanical numerical model [PDF]
We model evolution of a continent-continent collision and draw some parallels with the tectonic evolution of the Himalaya. We use a large-scale visco-plasto-elastic thermomechanical model that has a free upper surface, accounts for erosion and deposition
Avouac, J.-P., Burov, E., Toussaint, G.
core
Abstract A M5.9 earthquake occurred on 29 March 2024, offshore near the Strofades Islands, in the western Hellenic Subduction System. Here we present high‐precision earthquake locations and focal mechanisms that suggest the rupture of a NNE‐SSW striking, left‐lateral strike‐slip fault.
G. M. Bocchini +8 more
wiley +1 more source
Accretion of the cratonic mantle lithosphere via massive regional relamination. [PDF]
Wang Z, Capitanio FA, Wang Z, Kusky TM.
europepmc +1 more source
The break-up of continents and the formation of new ocean basins
Rifted continental margins are the product of stretching, thinning and ultimate break-up of a continental plate into smaller fragments, and the rocks lying beneath them store a record of this rifting process.
Minshull, T.A.
core +1 more source
Abstract After assembly, supercontinents are shaped by internal rifting and peripheral subduction. However, the geodynamic relationship between these two processes and their respective contributions to supercontinent breakup remain poorly understood.
Shipeng Liu +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
Influence of Inherited Rifted Margin Architecture on Continental Collision Dynamics
Abstract Continental collision is a key process in lithospheric evolution, driving mountain building, crustal thickening, and supercontinent assembly. Within the Wilson cycle, collision marks the final stage following rifting, ocean spreading, and subduction.
J. B. Ruh, P. Granado
wiley +1 more source
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

