3D imaging of vapour and liquid inclusions from the Mole Granite, Australia, using helical fluorescence tomography - Archive ouverte HAL Access content directly
Journal Articles Spectrochimica Acta Part B: Atomic Spectroscopy Year : 2007

3D imaging of vapour and liquid inclusions from the Mole Granite, Australia, using helical fluorescence tomography

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Abstract

World class Cu resources are concentrated in porphyry and epithermal ore deposits. Their formation remains partially understood, however, due to a lack of constraints on the partitioning properties of trace elements in general, and Cu in particular, between vapour and liquid phases evolved from boiling fluids at depth in the Earth's crust. Immiscible liquid and vapour fluid inclusions coexisting in a single quartz grain have been imaged in three dimensions by X-ray Fluorescence Computed Tomography (XFCT). Elemental spatial distributions confirm that Cu, and to a lesser extent As, partition into the vapour phase, whereas Mn, Fe, Zn, Br, Rb, Sr and Pb concentrate in the liquid inclusion. High resolution mapping of the vapour inclusions revealed that Cu is heterogeneously distributed at the scale of a single inclusion and is mostly concentrated as tiny daughter crystals.

Dates and versions

insu-00345511 , version 1 (09-12-2008)

Identifiers

Cite

J. Cauzid, P. Philippot, P. Bleuet, A. Simionovici, A. Somogyi, et al.. 3D imaging of vapour and liquid inclusions from the Mole Granite, Australia, using helical fluorescence tomography. Spectrochimica Acta Part B: Atomic Spectroscopy, 2007, 62 (8), pp.799-806. ⟨10.1016/j.sab.2007.06.014⟩. ⟨insu-00345511⟩
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