Journal ArticleDOI
Rare earth elements and the island arc tholeiitic series
P. Jakesˇ,James B. Gill +1 more
TLDR
The island arc tholeiitic series as mentioned in this paper is the most dominant in many western Pacific and Atlantic Island arcs and represents the earliest stages in arc evolution. But it is chemically inappropriate to call many of the rocks in island arcs calc-alkaline and they suggest they be known as the "island arc thoeitic series" and they differ from normal thoeiitic features by having a higher percentage of intermediate and acid members and too little normative olivine, for example, to have been in equilibrium with peridotite.About:
This article is published in Earth and Planetary Science Letters.The article was published on 1970-08-01. It has received 455 citations till now. The article focuses on the topics: Island arc & Peridotite.read more
Citations
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Phase relations of a high-Mg basalt from the Aleutian Island Arc: Implications for primary island arc basalts and high-Al basalts
D. A. Gust,Michael R. Perfit +1 more
TL;DR: In this article, the phase relations of a typical high-Mg basalt from the Makushin volcanic field on Unalaska Island provide important constraints on petrogenetic models and support a model in which high-Al basalts are generated by moderate amounts of crystal fractionation from more primitive (high Mg/Mg+Fe, lower Al2O3) basaltic magmas near the arc crustmantle boundary.
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The geochemical fingerprints of different tectonomagmatic environments using hygromagmatophile element abundances of tholeiitic basalts and basaltic andesites
TL;DR: Using hygromagmatophile element abundances (normalized to primordial mantle composition), it is possible to discriminate between the tectonic settings of tholeiitic basalts and basaltic andesites (47.0-53.5% SiO2) as discussed by the authors.
Journal ArticleDOI
Petrology and geochemistry of basaltic rocks of the Lau Basin
TL;DR: The Lau Basin is a marginal sea, located between the Tonga and Lau Ridges, in the southwestern Pacific as mentioned in this paper, and the data for Lau Basin basalt (LBB) show close similarity to data of typical oceanic ridge basalt.
Journal ArticleDOI
The evolution of the Pan African crystalline basement in NE Africa and Arabia
TL;DR: In this article, field and petrographic evidence indicate an intra-oceanic island arc environment for the mainly volcanoclastic sediments and geochemical data suggest that magmatic products were generated at or above easterly inclined Benioff zones.
Journal ArticleDOI
Andesites and high-alumina basalts from the central-south Chile high Andes: Geochemical evidence bearing on their petrogenesis
TL;DR: High-alumina basalts from seven High-Andean stratovolcanoes (37°30′S to 41°S) have major and trace element (including rare earth elements, REE) that are consistent with derivation by partial melting (typically 10−15%) of garnet-free peridotite followed by fractional crystallization of olivine and pyroxene as discussed by the authors.
References
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Journal ArticleDOI
Distribution of the Elements in Some Major Units of the Earth's Crust
Karl K. Turekian,K. H. Wedepohl +1 more
TL;DR: A table of abundances of the elements in the various major units of the Earth's lithic crust with a documentation of the sources and a discussion of the choice of units and data is presented in this article.
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The genesis of basaltic magmas
David H. Green,A.E. Ringwood +1 more
TL;DR: In this paper, the results of a detailed experimental investigation of fractionation of natural basaltic compositions under conditions of high pressure and high temperature were reported, where a single stage, pistoncylinder apparatus has been used in the pressure range up to 27 kb and at temperatures up to 1500° C to study the melting behaviour of several basaltics compositions.
Journal ArticleDOI
Trace element fractionation and the origin of tholeiitic and alkaline magma types
TL;DR: In this article, it was shown that the abundance of large ion elements in alkaline basalts cannot be consistently explained by fractional crystallization processes and that these characteristics are produced by previous partial melting episodes.
Journal ArticleDOI
Chemical Characteristics of Oceanic Basalts and the Upper Mantle
TL;DR: In this article, it was shown that oceanic tholeiites are either complete melts of the upper mantle or are generated from a mix of this tholeite and a magnesium-rich peridotite or dunite in proportions up to perhaps 1:4.
Journal ArticleDOI
Chemical Characteristics and Origin of Oceanic Ridge Volcanic Rocks
TL;DR: Oceanic ridge volcanic rocks alkali metal, alkaline earth, rare earth, nickel and major element content, observing partial melting as mentioned in this paper. But this is not the case for all volcanic rocks.
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