Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Enriched Grenvillian lithospheric mantle as a consequence of long-lived subduction beneath Laurentia

    Access Status
    Fulltext not available
    Authors
    Chiarenzelli, J.
    Lupulescu, M.
    Cousens, B.
    Thern, Eric
    Coffin, L.
    Regan, S.
    Date
    2010
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Chiarenzelli, J. and Lupulescu, M. and Cousens, B. and Thern, E. and Coffin, L. and Regan, S. 2010. Enriched Grenvillian lithospheric mantle as a consequence of long-lived subduction beneath Laurentia. Geology. 38 (2): pp. 151-154.
    Source Title
    Geology
    DOI
    10.1130/G30342.1
    ISSN
    00917613
    School
    Department of Physics and Astronomy
    URI
    http://hdl.handle.net/20.500.11937/14605
    Collection
    • Curtin Research Publications
    Abstract

    Geochemical and Nd isotopic data from mafic and newly discovered ultramafic rocks in the Adirondack Lowlands suggest widespread enrichment of the lithospheric mantle under the Grenville Province. Incompatible element abundances and previously published Hf TDM (zircon) (depleted mantle model age) and Nd TDM ages from rocks of the anorthosite-mangerite-charnockite-granite suite in the Adirondack Highlands document similar enrichment in the lower crust and its strong influence on subsequent magmatic events throughout the Ontario-Quebec-Adirondack segment of the Grenville Province. Likely the consequence of long-lived (ca. 1.4–1.2 Ga) northwest-directed subduction along the southeast edge of Laurentia (previously proposed Andean margin), this enrichment is similar to that associated with the vast (>240,000 km2) ultrapotassic province of the western Churchill Province. Enrichment of the lithospheric mantle beneath orogenic belts is a predictable and important differentiation process that has operated on Earth for at least the past 3 b.y.

    Related items

    Showing items related by title, author, creator and subject.

    • Constraints and deception in the isotopic record; The crustal evolution of the west Musgrave Province, central Australia
      Kirkland, Chris; Smithies, R.; Woodhouse, A.; Howard, H.; Wingate, M.; Belousova, E.; Cliff, J.; Murphy, R.; Spaggiari, C. (2013)
      The Hf and Nd isotopic evolution of the Musgrave Province, central Australia, is used to constrain the timing of crust formation and lithospheric organisation of Proterozoic Australia. The dataset from this region challenges ...
    • Depleted Mantle-sourced CFB Magmatism in the Jurassic Africa–Antarctica Rift: Petrology and 40Ar/39Ar and U/Pb Chronology of the Vestfjella Dyke Swarm, Dronning Maud Land, Antarctica
      Luttinen, A.; Heinonen, J.; Kurhila, M.; Jourdan, Fred; Mänttäri, I.; Vuori, S.; Huhma, H. (2015)
      The Jurassic Vestfjella dyke swarm at the volcanic rifted margin of western Dronning Maud Land represents magmatism related to the incipient Africa–Antarctica rift zone; that is, rift-assemblage magmatism of the Karoo ...
    • The Cambrian Kalkarindji Large Igneous Province: extent and characteristics based on new 40Ar/39Ar and geochemical data
      Evins, L.Z.; Jourdan, Fred; Phillips, D. (2009)
      The Early Cambrian Kalkarindji Continental Flood Basalt Province in northern Australia is an important Large Igneous Province (LIP) both in size and timing. Being the earliest Phanerozoic LIP it may have had a severe ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.