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
Ordovician marginal basin development in the central Norwegian Caledonides
TL;DR: In the Caledonides of central Norway, volcano-sedimentary successions, of the Lower and Upper Hovin and Horg Groups (Ordovician to?Lower Silurian), unconformably overlie a variable substrate which includes fragmented oceanic crust and ensimatic immature arc assemblages initially deformed and metamorphosed in earliest Ordovician times as mentioned in this paper.
Journal ArticleDOI
Petrology of osore-yama volcano, japan
TL;DR: Osore-yama is a composite volcano formed in the latest Pleistocene age and resting on Neogene and Neistocene sediments as discussed by the authors, and the history of volcanic activity is devided into the following three stages: 1) Kamabuseyama stratovolcano stage consisting of lava flows and scoria flows of basaltic andesite (A) and lava flows of pyroxene dacite (B); 2) main body stage of pumice flows, intermediated pyroclastic flows (Aramaki, 1957), and 3) post
Journal ArticleDOI
Magma generation in the Lesser Antilles: geological constraints
TL;DR: In this paper, the authors proposed that partial melting of subducted sediments is a sine qua non condition for generation of orogenic magmas in the Lesser Antilles, instead of dehydration of the descending slab.
Book ChapterDOI
Evolutionary model for the pan-african crystalline basement
TL;DR: The Pan-African basement has all the geophysical and geological characteristics of continental crust; but field and petrographic evidence indicate an intra-oceanic island arc environment for the mainly volcanoclastic sediments, and geochemical data suggest that most magmatic products were generated at or above subduction zones as mentioned in this paper.
Journal ArticleDOI
Identification of an early cretaceous ophiolite in the Camarines Norte-Calaguas Islands basement complex, eastern Luzon, Philippines
E.E Geary,Robert W. Kay +1 more
TL;DR: In this article, a pre-Late Cretaceous ophiolite assemblage underlying much of the eastern part of the Camarines Norte-Calaguas Islands (CNCI) basement complex has been identified.
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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