Imaging fluid inclusion content using the new CSIRO-GEMOC nuclear microprobe

Chris G. Ryan, Brent I. A. McInnes, Patrick J. Williams, Guoyi Dong, Tin Tin Win, Chris J. Yeats

    Research output: Contribution to journalArticle

    32 Citations (Scopus)

    Abstract

    The analysis of fluid inclusions in minerals holds the key to understanding ore formation processes. PIXE analysis of fluid inclusions using the nuclear microprobe provides a direct non-destructive method to determine the composition of these trapped fluids. However, some results have been controversial. In order to demonstrate the reliability of the PIXE approach, and eliminate spurious sources of important elements, the internal contents of fluid inclusions have been imaged using the new CSIRO–GEMOC nuclear microprobe (NMP) in a method that uses identification and quantitative integration of the inclusion signal from PIXE images. Examples of this approach show clearly the elements that reside within the fluid inclusions, and allow discrimination against solid phases outside and in close proximity to the inclusions.
    Original languageEnglish
    Pages (from-to)570-577
    Number of pages8
    JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
    Volume181
    Issue number1-4
    DOIs
    Publication statusPublished - 2001

    Keywords

    • nuclear microprobe
    • proton microprobe
    • fluid inclusions
    • geology
    • PIXE

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