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

    Sub-micron scale distributions of trace elements in zircon

    Access Status
    Fulltext not available
    Authors
    Hofmann, A.
    Valley, J.
    Watson, E.
    Cavosie, Aaron
    Eiler, J.
    Date
    2009
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Hofmann, A. and Valley, J. and Watson, E. and Cavosie, A. and Eiler, J. 2009. Sub-micron scale distributions of trace elements in zircon. Contributions to Mineralogy and Petrology. 158 (3): pp. 317-335.
    Source Title
    Contributions to Mineralogy and Petrology
    DOI
    10.1007/s00410-009-0385-6
    ISSN
    0010-7999
    School
    Department of Applied Geology
    URI
    http://hdl.handle.net/20.500.11937/5161
    Collection
    • Curtin Research Publications
    Abstract

    Sub-micron scale zoning of Ti concentrations and correlations between concentrations of Ti and other trace elements (P, Ce, and Y) and cathodoluminescent (CL) banding is observed in natural zircons. Ion images were made using the Caltech Microanalysis Center's CAMECA NanoSIMS 50L with an O- primary beam focused to ~300 nm on the sample surface. The high spatial resolution of this technique allows for interrogation of chemical variations at or below the scale of CL banding in natural zircons. Images produced in this manner display two types of correlations among Ti, P, Ce, and Y (which appears to be a proxy for CL intensity): strong (correlation coefficients >0.8) and subtle (correlation coefficients ~0.15-0.4). Strongly correlated images, which display Ti variations of ca. a factor of 3 between adjacent CL bands and overall elevated trace element concentrations in CL-dark bands, were found within an oscillatory-zoned, trace element enriched sector of a CL sector-zoned zircon. Three possible causes for such correlations include: temperature-dependent equilibrium partitioning, trace element partitioning limited by diffusion in the host melt and surface-controlled, non-equilibrium growth. Comparison of our data with the expected results of these processes suggests that: (1) Ti partitioning in zircon is dependent upon non-equilibrium effects in addition to temperature and/or (2) the incorporation of elements that co-vary with Ti in zircon (e.g., Y, P and Ce) is also temperature-dependent. Sub-micron scale, high-Ti regions are also found within Proterozoic Adirondack and >4 Ga Jack Hills zircons as well as trace element enrichments (including Ti) along cracks within Jack Hills zircons. © Springer-Verlag 2009.

    Related items

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

    • Nanoscale constraints on the shock-induced transformation of zircon to reidite
      Montalvo, S.; Reddy, Steven; Saxey, David; Rickard, William; Fougerouse, Denis; Quadir, Z.; Johnson, Tim (2019)
      In a hypervelocity impact event, the temperatures and pressures generated by the shock waves far exceed the values produced by endogenic processes. The shock-induced processes can modify the distribution of trace elements ...
    • Nanoscale processes of trace element mobility in metamorphosed zircon
      Peterman, E.M.; Reddy, Steven ; Saxey, David ; Fougerouse, Denis ; Snoeyenbos, D.R.; Rickard, William (2019)
      © 2019, Springer-Verlag GmbH Germany, part of Springer Nature. Several examples of zircon grains from high- to ultrahigh-pressure (UHP) and ultrahigh-temperature (UHT) metapelites exhibit a characteristic, yet atypical, ...
    • Seeing is believing: Visualization of He distribution in zircon and implications for thermal history reconstruction on single crystals
      Danišík, Martin; McInnes, Brent; Kirkland, Chris; McDonald, Brad; Evans, Noreen; Becker, Thomas (2017)
      Zircon (U-Th)/He thermochronometry is an established radiometric dating technique used to place temporal constraints on a range of thermally sensitive geological events, such as crustal exhumation, volcanism, meteorite ...
    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.