Journal ArticleDOI
Tectonic setting of basic volcanic rocks determined using trace element analyses
Julian A. Pearce,J.R. Cann +1 more
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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.About:
This article is published in Earth and Planetary Science Letters.The article was published on 1973-06-01. It has received 3403 citations till now. The article focuses on the topics: Volcanic rock & Basalt.read more
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Osbourn Trough: Structure, geochemistry and implications of a mid-Cretaceous paleospreading ridge in the South Pacific
TL;DR: Osbourn Trough is a key piece in an outstanding problem: do the Ontong Java, Manihiki and Hikurangi large igneous provinces represent a single ~100 million km3 magmatic pulse as discussed by the authors.
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Geological characteristics and genesis of the Tuwu porphyry copper deposit, Hami, Xinjiang, Central Asia
Chunming Han,Wenjiao Xiao,Guochun Zhao,Jingwen Mao,Jianmin Yang,Zhiliang Wang,Zhen Yan,Qigui Mao +7 more
TL;DR: The Tuwu copper mine as mentioned in this paper is one of the largest porphyry copper deposits in western China, with a grade range from 0.30% to 1.50% Cu.
Journal ArticleDOI
Palaeozoic within-plate volcanic rocks in Nova Scotia (Canada) reinterpreted; isotopic constraints on magmatic source and palaeocontinental reconstructions
TL;DR: In this paper, the authors show that most of these volcanic rocks are bimodal within-plate suites and that the source of the Palaeozoic felsic volcanic rocks is isotopically indistinguishable beneath southern and northern Nova Scotia and did not substantially change with time.
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Late Cenozoic volcanism in central Myanmar: Geochemical characteristics and geodynamic significance
TL;DR: In this article, the authors report new geochemical data of volcanic rocks from Monywa, Mt. Popa and Singu areas erupting in two distinct stages, i.e., mid-Miocene and Quaternary, respectively.
Book ChapterDOI
Geological and Geophysical Investigation of the Midcayman Rise Spreading Center: Initial Results and Observations
Robert D. Ballard,Wilfred B. Bryan,Henry J. B. Dick,K. O. Emery,Geoffrey Thompson,Elazar Uchupi,Karleen E. Davis,Jelle Zeilinga de Boer,Stephen E. DeLong,Paul J. Fox,Frieda L. Malcolm,Randall Spydell,Janet B. Stroup,William G. Melson,Raymond Wright +14 more
References
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Journal ArticleDOI
Origin of Basalt Magmas: An Experimental Study of Natural and Synthetic Rock Systems
H. S. Yoder,C. E. Tilley +1 more
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Origin and development of marginal basins in the western Pacific
TL;DR: In this paper, the existence of low density, high temperature upper mantle is indicated by the lack of a large gravity anomaly over the shallow oceanic crust of the inter-arc basin, by high heat flow there, and by anomalously high attenuation of shear waves passing through the upper mantle beneath the extensional zone.
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The Troodos Massif, Cyprus and other Ophiolites as Oceanic Crust: Evaluation and Implications
Eldridge M. Moores,F. J. Vine +1 more
TL;DR: The Troodos Massif as discussed by the authors consists of a pseudostratiform mass of harzburgite, dunite, pyroxenite, gabbro, quartz diorite, diabase and pillow lava arranged in a dome-like manner.
Journal ArticleDOI
Major and Trace Element Abundances in Volcanic Rocks of Orogenic Areas
P. Jakeš,A. J. R. White +1 more
TL;DR: In this paper, the composition of island-arc volcanic rocks in relation to their geographic and stratigraphic relations is discussed and the differences in composition between volcanic rocks and those in continental margins are pointed out.
Journal ArticleDOI
Rare earth elements and the island arc tholeiitic series
P. Jakesˇ,James B. Gill +1 more
TL;DR: 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.