Journal ArticleDOI
MnO/TiO2/P2O5: a minor element discriminant for basaltic rocks of oceanic environments and its implications for petrogenesis
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TLDR
A ternary diagram using MnO, TiO 2, P 2 O 5 can discriminate between five petrotectonic environments of basaltic rocks (45-54% SiO 2 ).About:
This article is published in Earth and Planetary Science Letters.The article was published on 1983-01-01. It has received 658 citations till now. The article focuses on the topics: Island arc & Olivine.read more
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A method of discriminating between different types of mid-ocean ridge basalts and continental tholeiites with the Nb1bZr1bY diagram
TL;DR: In this paper, the immobile trace elements Nb, Zr and Y were used to distinguish between different types of mid-ocean ridge basalts (MORB) including N-type MORB, from normal midocean ridges and P-type, from plume-influenced regions).
Journal ArticleDOI
Deciphering igneous and metamorphic events in high-grade rocks of the Wilmington Complex, Delaware: Morphology, cathodoluminescence and backscattered electron zoning, and SHRIMP U-Pb geochronology of zircon and monazite
John N. Aleinikoff,W.S. Schenck,Margaret O. Plank,LeeAnn Srogi,Christopher Fanning,Sandra L. Kamo,Howell Bosbyshell +6 more
TL;DR: The Wilmington Complex as mentioned in this paper contains morphologically complex zircons that formed through both igneous and metamorphic processes during the development of an island-arc complex and suturing of the arc to Laurentia.
Journal ArticleDOI
The Anarak, Jandaq and Posht-e-Badam metamorphic complexes in central Iran: New geological data, relationships and tectonic implications
Sasan Bagheri,Gérard M. Stampfli +1 more
TL;DR: The Variscan accretionary complex as discussed by the authors is a new name for the most widely distributed metamorphic rocks connected to the Anarak and Jandaq complexes, and it is directly related to the tectonic evolution of the Paleo-Tethys Ocean.
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Evolution of the Paleo-Asian Ocean (Altai-Sayan Region, Central Asia) and collision of possible Gondwana-derived terranes with the southern marginal part of the Siberian continent
M M Buslov,I. Yu. Saphonova,Tsuyoshi Watanabe,O T Obut,Y. Fujiwara,K. Iwata,N. N. Semakov,Y. Sugai,L V Smirnova,A. Yu. Kazansky +9 more
TL;DR: In this article, a revised terrane classification based on Vendian-Cambrian geodynamic units and evolution of terranes is described. And reactivated suture zones along the terrane boundaries are proposed, which suggest the important role of strike-slip deformations in the formation of mosaic block structure of Central Asia.
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Geochronological Constraints on the Paleoproterozoic Evolution of the North China Craton: SHRIMP Zircon Ages of Different Types of Mafic Dikes
TL;DR: Wang et al. as mentioned in this paper characterized metamorphosed and unmetamorphosed dikes in terms of their geochemistry and geochronology, and suggested that the North China craton may have been involved in the evolution of the supercontinent Columbia.
References
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Tectonic setting of basic volcanic rocks determined using trace element analyses
Julian A. Pearce,J.R. Cann +1 more
TL;DR: In this paper, the results of analyses for Ti, Zr, Y, Nb and Sr in over 200 basaltic rocks from different tectonic settings have been used to construct diagrams in which these settings can usually be identified.
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Role of oxygen pressure in the crystallization and differentiation of basaltic magma
TL;DR: In this paper, two types of crystallization paths in iron oxide systems are illustrated by describing equilibrium crystallization in the fayalite field of the system FeO-Fe 2 O 3 -SiO 2.
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The Oman Ophiolite as a Cretaceous Arc-Basin Complex: Evidence and Implications
TL;DR: In this paper, a combined structural and geochemical analysis of the dyke swarm indicates that extension took place in approximately a N-S and an ESE-WNW (leaky transform) direction relative to an inferred direction of subduction to the NE, and that a small but significant proportion of the sheeted dykes were injected during the 'arc' rather than the earlier 'backarc spreading' episode.
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Tectonic setting of basic volcanic rocks determined using trace element analyses
Julian A. Pearce,J.R. Cann +1 more