کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1241419 | 969189 | 2007 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: 3D imaging of vapour and liquid inclusions from the Mole Granite, Australia, using helical fluorescence tomography 3D imaging of vapour and liquid inclusions from the Mole Granite, Australia, using helical fluorescence tomography](/preview/png/1241419.png)
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.
Journal: Spectrochimica Acta Part B: Atomic Spectroscopy - Volume 62, Issue 8, August 2007, Pages 799–806