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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Journal ArticleDOI
Metamorphic basement rocks of Yap Islands, Western Pacific: Possible oceanic crust beneath an island arc
TL;DR: The basement rocks of the Yap Islands are composed principally of greenschist and amphibolite, unconformably overlain by a breccia bed with mid-Tertiary foraminifera and by a deeply weathered andesitic agglomerate as discussed by the authors.
Book ChapterDOI
Chapter 8 Svecofennian supracrustal rocks
TL;DR: In this article, a substantial part of the Paleoproterozoic crust of southern and central Finland is characterized by 1.92 Ga turbiditic sedimentary and - 1.88 Ga arc-type volcanic rocks.
Journal ArticleDOI
Rare-earth and trace elements in the Quaternary volcanic rocks of Hokkaido, Japan
TL;DR: In this paper, the trace-element abundances are discussed in terms of the petrological problems, particularly the origin of calc-alkali magma, and the calcalkali rocks can be classified into three types which correspond to Kuno's three basalt-magma types.
Journal ArticleDOI
Trace element variations in the volcanic rocks from the Nasu zone, northeast Japan
Yasuyuki Masuda,Ken-ichiro Aoki +1 more
TL;DR: Trace element concentrations were analyzed in 46 volcanic rocks from twelve recent volcanoes of the outer volcanic zone (Nasu zone) of Northeast Japan as mentioned in this paper, and the trace element variations in the two volcanic rock series can be interpreted as the product of different degrees of partial melting of the same peridotitic upper mantle.
Journal ArticleDOI
Geochemistry and tectonic setting of some Upper Ordovician volcanic rocks in east and southeast Ireland
C.J. Stillman,C.T. Williams +1 more
TL;DR: The results of this study suggest that the Upper Ordovician volcanic rocks of east and southeast Ireland belong to the orogenic volcanic series, are essentially calc-alkaline, and were erupted on the margins of a continental plate which thickened in general towards the southeast above a subduction zone which dipped to the southeast 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.
Journal ArticleDOI
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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