Compositions of chromite, associated minerals, and parental magmas of podiform chromite deposits: The role of slab contamination of asthenospheric melts in …
Podiform chromitites in the mantle sections of ophiolites belong to either high-Cr
(metallurgical) or high-Al (refractory) varieties. Their highly variable compositions are …
(metallurgical) or high-Al (refractory) varieties. Their highly variable compositions are …
Formation and modification of chromitites in the mantle
S Arai, M Miura - Lithos, 2016 - Elsevier
Podiform chromitites have long supplied us with unrivaled information on various mantle
processes, including the peridotite-magma reaction, deep-seated magmatic evolution, and …
processes, including the peridotite-magma reaction, deep-seated magmatic evolution, and …
Trace element discrimination of arc, slab failure, and A-type granitic rocks
Although widely used, classification schemes for granitic rocks have until now failed to
separate slab failure from arc magmatism in collisional orogens. Our previous work showed …
separate slab failure from arc magmatism in collisional orogens. Our previous work showed …
Forced subduction initiation recorded in the sole and crust of the Semail Ophiolite of Oman
Subduction zones are unique to Earth and fundamental in its evolution, yet we still know little
about the causes and mechanisms of their initiation. Numerical models show that far-field …
about the causes and mechanisms of their initiation. Numerical models show that far-field …
Magmatic response to subduction initiation: Part 1. Fore‐arc basalts of the Izu‐Bonin arc from IODP Expedition 352
Abstract The Izu‐Bonin‐Mariana (IBM) fore arc preserves igneous rock assemblages that
formed during subduction initiation circa 52 Ma. International Ocean Discovery Program …
formed during subduction initiation circa 52 Ma. International Ocean Discovery Program …
Subduction initiation and ophiolite crust: new insights from IODP drilling
ABSTRACT International Ocean Discovery Program (IODP) Expedition 352 recovered a
high-fidelity record of volcanism related to subduction initiation in the Bonin fore-arc. Two …
high-fidelity record of volcanism related to subduction initiation in the Bonin fore-arc. Two …
Synchronous formation of the metamorphic sole and igneous crust of the Semail ophiolite: New constraints on the tectonic evolution during ophiolite formation from …
Abstract The Semail (Oman–United Arab Emirates) and other Tethyan-type ophiolites are
underlain by a sole consisting of greenschist-to granulite-facies metamorphic rocks. As …
underlain by a sole consisting of greenschist-to granulite-facies metamorphic rocks. As …
Magmatic response to subduction initiation, Part II: boninites and related rocks of the Izu‐Bonin Arc from IODP Expedition 352
Abstract International Ocean Discovery Program Expedition 352 to the Izu‐Bonin forearc
cored over 800 m of basement comprising boninite and boninite‐series lavas. This is the …
cored over 800 m of basement comprising boninite and boninite‐series lavas. This is the …
[HTML][HTML] The petrogenesis of modern and ophiolitic lavas reconsidered: Ti-V and Nb-Th
JW Shervais - Geoscience Frontiers, 2022 - Elsevier
Tectonic discrimination diagrams are a key tool for understanding ancient volcanic rock
origins. In this contribution we compile over 15,000 whole rock compositions to re-evaluate …
origins. In this contribution we compile over 15,000 whole rock compositions to re-evaluate …
Role of arc processes in the formation of continental crust
We review data and recent research on arc composition, focusing on the relatively complete
arc crustal sections in the Jurassic Talkeetna arc (south central Alaska) and the Cretaceous …
arc crustal sections in the Jurassic Talkeetna arc (south central Alaska) and the Cretaceous …