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Earth, Planets and Space
Fig. 1 | Earth, Planets and Space

Fig. 1

From: In-situ permeability of fault zones estimated by hydraulic tests and continuous groundwater-pressure observations

Fig. 1

a Tectonic index map of the Median Tectonic Line (MTL) showing the ITA observatory location. b Arrangement of screen and gravel filter in Hole 1 with a stratigraphic section showing the fault zone structure between 470 and 570 m deep. c Cross section of the ITA observatory showing the internal structure of the MTL fault zone. d Arrangement of screen and gravel filter in Hole 2 with the results of the resistivity log

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