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| Titel |
Multifractal analysis of mercury inclusions in quartz by X-ray computed tomography |
| VerfasserIn |
T. Shibata, T. Maruoka, T. Echigo |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
2198-5634
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics Discussions ; 1, no. 2 ; Nr. 1, no. 2 (2014-08-14), S.1365-1379 |
| Datensatznummer |
250115121
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| Publikation (Nr.) |
 copernicus.org/npgd-1-1365-2014.pdf |
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| Zusammenfassung |
| In order to refine our understanding how fluid inclusions were trapped in the
host minerals, we non-destructively observed mercury inclusions (liquid
Hg0) in quartz samples using X-ray computed tomography (CT) technique. The
X-ray CT apparatus can observe internal structures of the samples and give
cross-sectional images from the transmission of the X-rays through the
samples. From the cross-sectional images, we obtained three-dimensional
spatial distributions of mercury inclusions, and quantitatively analyzed them
using fractal and multifractal methods. Although the samples were from
different mines, the resultant fractal dimensions were about 1.7 for the
samples. The fractal dimensions were also close to those predicted by
diffusion-limited aggregation models and percolation theory, which are
controlled by the irreversible kinetics. Then, the mercury-bearing fluids
were not primary fluid inclusions, but migrated into the pre-existing cracks
of quartz crystals by diffusion processes. |
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