Mafic dyke swarms
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Mafic dyke swarms

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Published by Geological Association of Canada in St. John"s, Nfld .
Written in English

Subjects:

  • Dikes (Geology) -- Congresses.

Book details:

Edition Notes

Statementedited by Henry C. Halls and Walter F. Fahrig.
SeriesThe Geological Association of Canada special paper -- 34., Publication of the International Lithosphere Program -- no. 0120., Geological Association of Canada special paper -- 34., Publication (International Lithosphere Program) -- no. 120.
ContributionsHalls, Henry C. 1941-, Fahrig, W. F., Geological Association of Canada.
ID Numbers
Open LibraryOL17952506M
ISBN 100919216331
LC Control Number87090264

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This book includes contributions from the 7th International Dyke Conference (IDC7) and also some chapters by invitation; concentrates on mafic dyke swarms and also includes related associations, e.g. links with sills, kimberlites, syenites, carbonatites and volcanics. Dyke Swarms of the World: A Modern Perspective Rajesh K. Srivastava, Richard E. Ernst, Peng Peng Continuing the tradition of International Dyke Conference, this book is largely based on contributions from the IDC7 but also includes some chapters by invitation.   Mafic dyke swarms are valuable time markers in the Archean craton of southern west Greenland. The Ameralik dykes in the Godthabsfjord region are particularly useful for differentiating early Archean rocks and tectonic events from late Archean rocks and events. Continuing the tradition of International Dyke Conference, this book is largely based on contributions from the IDC7 but also includes some chapters by invitation. It focuses on mafic dyke swarms and related associations: e.g. links with sills, kimberlites, syenites, carbonatites, and volcanics, discussing the following themes: (i) regional.

Mafic dyke swarms are vertical dyke swarms in the similar orientation, representing the system of pre-formed stretched crustal fracture swarms in which the mafic magma is located [4] [5]. The dyke swarms also represent spreading structures and are commonly found on earth cratons (eg Canadian Shield, North China craton). In the study area, mafic. The mafic dike swarms and sills in the Tarim LIP make up the plumbing system of the mantle plume. Accompanied by the upwelling of the mantle plume, many eruptive centers and regional dike swarms were generated in the Tarim Basin (Figs. –). Giant mafic dyke swarms that can be more than km long with individual dykes being typically more than 10 m wide (Ernst and Buchan, , Ernst, ) are an integral part of the feeder network of LIPs, and can be used for correlation and paleo-reconstruction of continental land masses in the geologic past (e.g. Bleeker and Ernst, The occurrence of mafic dike swarms in Archean and Paleoproterozoic terrains is often cited as evidence for mantle plume activity associated with abnormally high mantle potential temperatures. Dike swarms may extend over km ( mi) in width and length.

ABSTRACT The mafic dyke swarms of Kadiri Schist Belt revealed the voluminous emplacement of mafic melts through the continental crust. They represent the last phase of igneous activity in the area. They are essentially doleritic in composition; gabboroic dykes are also seen at places. PDF | On Jan 1, , Oliveira published Mafic Dyke Swarms | Find, read and cite all the research you need on ResearchGate. The Late Archaean Uauá Mafic Dyke Swarm, São Francisco Craton, Brazil, and Implications for Palaeoproteozoic Extrusion Tectonics and Orogen Reconstruction Pages Oliveira, Elson P. Neoarchean-Mesoproterozoic Mafic Dyke Swarms of the Indian Shield Mapped Using Google Earth™ Images and ArcGIS™, and Links with Large Igneous Provinces Amiya K. Samal, Rajesh K. Srivastava, Richard E. Ernst, Ulf Söderlund Pages