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    A review of Pangaea dispersal and large igneous provinces – In search of a causative mechanism

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    Authors
    Peace, A.L.
    Phethean, Jordan cc
    Franke, D.
    Foulger, G.R.
    Schiffer, C.
    Welford, J.K.
    McHone, G.
    Rocchi, S.
    Schnabel, M.
    Doré, A.G.
    Affiliation
    Memorial University of Newfoundland, Canada
    McMaster University, Hamilton, Ontario, Canada
    University of Derby
    Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Hannover, Germany
    Uppsala University, 75236 Uppsala, Sweden
    Durham University
    Dipartimento di Scienze della Terra, Università di Pisa, Pisa, Italy
    Equinor (UK) Ltd
    Issue Date
    2019-07-22
    
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    Abstract
    The breakup of Pangaea was accompanied by extensive, episodic, magmatic activity. Several Large Igneous Provinces (LIPs) formed, such as the Central Atlantic Magmatic Province (CAMP) and the North Atlantic Igneous Province (NAIP). Here, we review the chronology of Pangaea breakup and related large-scale magmatism. We review the Triassic formation of the Central Atlantic Ocean, the breakup between East and West Gondwana in the Middle Jurassic, the Early Cretaceous opening of the South Atlantic, the Cretaceous separation of India from Antarctica, and finally the formation of the North Atlantic in the Mesozoic-Cenozoic. We demonstrate that throughout the dispersal of Pangaea, major volcanism typically occurs distal from the locus of rift initiation and initial oceanic crust accretion. There is no location where extension propagates away from a newly formed LIP. Instead, LIPs are coincident with major lithosphere-scale shear movements, aborted rifts and splinters of continental crust rifted far out into the oceanic domain. These observations suggest that a fundamental reappraisal of the causes and consequences of breakup-related LIPs is in order.
    Citation
    Peace, A.L. and Phethean, J.J.J. and Franke, D. and Foulger, G.R. and Schiffer, C. and Welford, J.K. and McHone, G. and Rocchi, S. and Schnabel, M. and Doré, A.G. (2019) 'A review of Pangaea dispersal and large igneous provinces – in search of a causative mechanism.', Earth-science reviews, 102902, pp, 1-22. DOI: 10.1016/j.earscirev.2019.102902
    Publisher
    Elsevier
    Journal
    Earth-Science Reviews
    URI
    http://hdl.handle.net/10545/624257
    DOI
    10.1016/j.earscirev.2019.102902
    Additional Links
    https://www.sciencedirect.com/science/article/pii/S0012825219304817?via%3Dihub
    http://dro.dur.ac.uk/28183/
    Type
    Article
    Language
    en
    ISSN
    0012-8252
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.earscirev.2019.102902
    Scopus Count
    Collections
    Environmental Sustainability Research Centre

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