Results 81 to 90 of about 10,059 (219)
Differential Craton Destruction Controlled by Fossil Structures in the Central North China Craton
Abstract Craton evolution plays a fundamental role in stabilizing the continental lithosphere and the long‐term evolution of Earth's surface environment. The Shanxi Rift Zone (SRZ) within the North China Craton marks an ongoing craton destruction. Detailed lithospheric structure is essential to explain craton destruction.
Cong Ji +4 more
wiley +1 more source
Two-sided asymmetric subduction; implications for tectonomagmatic and metallogenic evolution of the Lut Block, Eastern Iran [PDF]
West directed subduction zones show common characteristics, such as low structural elevation, deep trench, steep slab and a conjugate back-arc basin that are opposite to those of the east directed subduction zones.
Arjmandzadeh, R. +5 more
core +2 more sources
Tectonic significance of changes in post-subduction Pliocene-Quaternary magmatism in the south east part of the Carpathian-Pannonian Region [PDF]
The south-eastern part of the Carpathian–Pannonian region records the cessation of convergence between the European platform/Moesia and the Tisza–Dacia microplate.
Alexandru Szakács +112 more
core +2 more sources
We provide petrographic and geochemical characterisation of mantle xenoliths from Koro Island, eastern Fiji. Several lherzolite xenoliths display spinel–pyroxene symplectite textures, including preserved former grain boundaries, consistent with garnet breakdown that we attribute to thinning of a preexisting garnet‐facies lithospheric mantle beneath ...
Natasha Barrett +4 more
wiley +1 more source
Subduction Zone Magnetism: The Influence of Metamorphism and Serpentinization in the Mantle Wedge
Abstract Subduction zone magnetic anomalies have previously been used to infer their thermal structure assuming a uniformly serpentinized mantle carries a homogeneous, isotropic magnetization. However, seismic tomography, geological observations and numerical modeling provide increasing evidence for a non‐uniformly serpentinized mantle wedge that may ...
Y. Li +8 more
wiley +1 more source
Abstract The subduction of the Paleo‐Pacific Plate beneath the NE Asian continental margin induced extensive magmatism, providing an excellent opportunity to investigate the interplay between plate dynamics, arc magmatism, continental crust formation, and porphyry mineralization.
Honghui Wang +5 more
wiley +1 more source
Liquid line of descent of a basanitic liquid at 1.5Gpa: constraints on the formation of metasomatic veins [PDF]
The metasomatism observed in the oceanic and continental lithosphere is generally interpreted to represent a continuous differentiation process forming anhydrous and hydrous veins plus a cryptic enrichment in the surrounding peridotite.
Pilet, Sébastien +2 more
core
Magnesium isotopic composition of the oceanic mantle and oceanic Mg cycling [PDF]
© The Author(s), 2017. This is the author's version of the work. It is posted here under a nonexclusive, irrevocable, paid-up, worldwide license granted to WHOI. It is made available for personal use, not for redistribution.
Chung, Sun-Lin +4 more
core +2 more sources
Abstract The role of sub‐arc mantle lithosphere in the build‐up of a batholith is an outstanding issue that is still not well resolved. Lamproite is a mantle‐derived magmatic rock that provides a window to learn the composition and the enrichment processes of subcontinental lithospheric mantle (SCLM).
Y. H. Tian +4 more
wiley +1 more source
The origin of kimberlite [PDF]
A new diapiric model for kimberlite genesis takes into account recent interpretations of peridotite-CO_2-H_2O melting relationships. A minor thermal perturbation at depth might trigger release of reduced vapors with major components C-H-O.
Wyllie, Peter J.
core +1 more source

