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Sunday, May 17, 2020 | History

3 edition of Ring complex granites and anorogenic magmatism found in the catalog.

Ring complex granites and anorogenic magmatism

Bernard Bonin

Ring complex granites and anorogenic magmatism

by Bernard Bonin

  • 94 Want to read
  • 36 Currently reading

Published by North Oxford Academic in Oxford .
Written in English

    Subjects:
  • Granite.,
  • Magnetism.

  • Edition Notes

    StatementBernard Bonin ; translated by J. Renouf.
    Classifications
    LC ClassificationsQE462.G7
    The Physical Object
    Paginationxiii, 189 p. :
    Number of Pages189
    ID Numbers
    Open LibraryOL22022761M
    ISBN 100946536503

    Cretaceous Gross Spitzkoppe and Klein Spitzkoppe stocks in Namibia: Topaz-bearing A-type granites related to continental rifting and mantle plume I. Haapala a,⁎, S. Frindt b, J. Kandara c a Department of Geology, P.O. FI University of Helsinki, Finland b Geological Survey of Namibia, P.O. Box , 1 Aviation Road, Windhoek, Namibia.   Introduction. Granites and rhyolites with high K contents and extreme Fe enrichment are a distinctive rock type of problematic origin that are found throughout the Proterozoic ‘anorogenic’ granite provinces of the southwestern USA, Adirondacks, eastern Canada, southern Greenland and the Fennoscandian Shield (Anderson, ).Phanerozoic examples include Paleozoic granites of Cited by:

      We have previously2 investigated the group of ring complexes forming the central zone of anorogenic magmatism in Nigeria, and found a southerly Cited by: The geodynamic significance of alkaline magmatism in the western Mediterranean compared with West Africa Petrogenesis of cogenetic silica-oversaturated and -undersaturated syenites of Abu Khruq ring complex, South Post-orogenic alkaline granites from China and comparisons with anorogenic alkaline granites elsewhere, Journal of Southeast Cited by:

    emplaced as volcanic lava plateaus and subvolcanic ring-complexes, fed at shallow depths by intracrus- tal magma chambers. The last stage is transitional from orogenic to anorogenic regimes. Post-cirogenic alkaline granites, e.g. the Tahrmert red granite massif, predate ear/y anorogenic alkaline granites, emplaced in shallow ring-Cited by: Multivariate discriminant analysis of four varieties of granites, classified a priori exclusively on field observations, provide assignment rules that, using major element compositions alone, successfully distinguish late-orogenic (LO) from post-orogenic (PO) granites related to orogeny as well as the anorogenic granites in the anorthosite/rapakivi complexes (AR) and the alkaline ring Cited by:


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Ring complex granites and anorogenic magmatism by Bernard Bonin Download PDF EPUB FB2

Ring Complex Granites and Anorogenic Magmatism (Studies in Geology) Hardcover – April 1, by Bernard Bonin (Author)Author: Bernard Bonin. Additional Physical Format: Online version: Bonin, Bernard.

Ring complex granites and anorogenic magmatism. New York: Elsevier, (OCoLC) Title: Anorogenic Granite Complexes. (Book Reviews: Ring Complex Granites and Anorogenic Magmatism) Book Authors: Bonin, Bernard: Review Author: Gittins, John.

The Mesozoic Younger Granite ring complexes of Nigeria (Fig. ) form part of a wider province of alkaline anorogenic magmatism. They occur in a zone km wide and 1, km long extending from northern Niger to south central by: 2.

Petrology, Structure, Geological Setting, and Metallogeny. Author: Anne Nédélec,Jean-Luc Bouchez; Publisher: Oxford University Press, USA ISBN: Category: Science Page: View: DOWNLOAD NOW» This book - translated, edited, and updated from the original French edition Pétrologie des Granites published by Vuibert in - gives a modern presentation of granitic rocks.

Book Reviews. Anorogenic Granite Complexes. By JOHN GITTINS. See Ring complex granites and anorogenic magmatism book Hide authors and affiliations. Science 27 Feb Vol.Issuepp.

a DOI: /sciencea. Article; Info & Metrics; eLetters; PDF; This is a PDF-only article. The first page of the PDF of this article Author: John Gittins. The Ossipee Ring Complex – an example of Cretaceous White Mountain magmatism Quench texture in fine-grained granite Fragmental rhyolite Coarse-grained biotite granite Bimodal volcanics + quartz syenites and granites High level intrusion, classic ring-complex structure.

The Tessalit ring complex: petrography and mineralogy Tessalit is the most northerly ring complex in the Adrar des Iforas (at N and 10 E; Fig. 2), its name coming from the Malian border town located at the western limit of the complex. This massif possesses a complicated structure with several intrusion centres and numerous huge roof.

The Mesozoic Younger Granite ring complexes of Nigeria (Fig. ) form part of a wider province of alkaline anorogenic magmatism. They occur in a zone km wide and 1,km long extending from. Syenogranites and monzogranites of Edward VII Peninsula, Marie Byrd Land, represent magmatism associated with continental rifting and the separation of New Zealand from W Antarctica in the mid-Cretaceous.

These coarse-grained, leucocratic, subsolvus biotite granites occur as five small plutons cutting Lower Palaeozoic metasediments. ISBN: OCLC Number: Notes: Translation of: Les granites des complexes annulaires. Description: xiii, pages: illustrations.

The igneous complex, a Cretaceous ring complex (Foland et al., ), comprises volcanic rocks, syenites and A-type granites of the White Mountain Magma Series. Daly envisaged the rising magma making way for itself by engulfing blocks of country rocks disrupted from the roof and walls of the magma chamber, since blocks of country rocks are not uncommon within the by: ince of ring complexes (Fig.

2), composed of nord- markites, peralkaline and metaluminous granites and granite porphyries, have yielded Cambrian Rb-Sr whole-rock ages between and Ma (Lidgeois and Black, Ba et al.

In this region, the. The Younger Granite ring complexes of West Africa extend from Air to Cameroun and range in age from Palaeozoic to Tertiary. They are dominated by granites and are emplaced in Pan African basement rocks, on ‘swells’ bordering sedimentary : J.

Wright. PDF | The Tosham ring-complex, m.y. old, is characterized by ring-structures and cauldron subsidences. The evidence is: 1) the elliptical and/or | Find, read and cite all the research you. The Paresis complex is located about km from the Atlantic coast, and is one of the largest (diameter about 18 km) and farthest inland of the anorogenic intrusive and subvolcanic igneous complexes of the Cretaceous Damaraland by: A-type granites are emplaced in either within plate anorogenic settings or in the final stages of an orogenic event (sometimes referred to as post-orogenic).

The universal commonality is that the tectonic environment has become extensional and the granites do not show any tectonic fabric (although such fabric may be introduced by later tectonic.

Prolonged postcollisional shoshonitic magmatism in the southern Svecofennian domain - a case study of the Åva granite-lamprophyre ring complex (O. Eklund, A. Shebanov). Origin of chemically distinct granites in a composite intrusion in east-central Sweden: geochemical and geothermal constraints (A.

Lindh).Book Edition: 1. Ring Complex Granites and Anorogenic Magmatism. BERNARD BoNIN. Elsevier, New York, xiv, pp., illus. $ Translated, withrevisions, fromthe Frenchedition (OrIeans, ) byJohn Renouf.

This useful andthought-provoking treat-ment ofgranite genesis, emplacement, and evolution during continental anorogenic magmatism reflects the Author: Barry E. Fridling. The complex comprises felsic units of granite and syenite with compositionally related dykes, and a single intrusive plug of diorite.

Existing zircon U-Pb ages of ± 2 Ma for the syenite and ± Ma for the granite suggest that the emplacement of the complex took place over a Author: R.

Trumbull, Masafumi Sudo, Chris Harris, Richard Armstrong, C H de Beer. In some complexes, the outer limits of the complexes are defined partly or completely by a ring dyke. This intrusion, generally composed of granite porphyry, was the chief structural element of the complex and controlled the distribution of both volcanic and subvolcanic magmatism at high levels in the by: 1.

Anorogenic granite magma genesis: new isotopic data for the southern sector of the British Tertiary Igneous Province - Volume 83 Issue - I. G. Meighan, A.

E. Fallick, A. G. McCormickCited by: The Mesozoic Younger Granite ring complexes of Nigeria (Fig. ) form part of a wider province of alkaline anorogenic magmatism.

They occur in a zone km wide and 1, km long extending from northern Niger to south central Nigeria. Rb/Sr whole rock dating indicates that the oldest complex of Adrar Bous in the.