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| Titel |
Interpreting muon radiographic data in a fault zone: possible application to geothermal reservoir detection and monitoring |
| VerfasserIn |
H. K. M. Tanaka, H. Muraoka |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
2193-0856
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| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Instrumentation, Methods and Data Systems ; 2, no. 1 ; Nr. 2, no. 1 (2013-03-27), S.145-150 |
| Datensatznummer |
250017759
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| Publikation (Nr.) |
 copernicus.org/gi-2-145-2013.pdf |
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| Zusammenfassung |
| Rainfall-triggered fluid flow in a mechanical fracture zone associated with
a seismic fault has been estimated (Tanaka et al., 2011) using muon
radiography by measuring the water position over time in response to
rainfall events. In this report, the data taken by Tanaka et al. (2011) are
reanalyzed to estimate the porosity distribution as a function of a distance
from the fault gouge. The result shows a similar pattern of the porosity
distribution as measured by borehole sampling at Nojima fault. There is a
low porosity shear zone axis surrounded by porous damaged areas with density
increasing with the distance from the fault gouge. The dynamic muon
radiography (Tanaka et al., 2011) provides a new method to delineate both the
recharge and discharge zones along the fault segment, an entire hydrothermal
circulation system. This might dramatically raise the success rate for
drilling of geothermal exploration wells, and it might open a new horizon in
the geothermal exploration and monitoring. |
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