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Earth, Planets and Space
Fig. 4 | Earth, Planets and Space

Fig. 4

From: Estimation of paleo-permeability around a seismogenic fault based on permeability tensor from observable geometric information of quartz veins

Fig. 4

Photographs of outcrops and photomicrographs of thin sections of quartz veins under crossed Nicol. a Shows the quartz veins in the grid F and an arrow in b shows the veins near the a. Both a and b formed during a single seismic event. c, d Show the quartz vein formed during multiple seismic events whose location is indicated as a solid circle in Fig. 2

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