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

Fig. 1

From: Elastic wave velocity and electrical conductivity in a brine-saturated rock and microstructure of pores

Fig. 1

Pole figures of crystallographic orientation of plagioclase, quartz, biotite and K-feldspar. X- and Z-directions are the radial and axial directions of a cylindrical sample AJG02. Pole figures are equal-area lower-hemisphere projections with a Gaussian half-width angle of 8.5º. Contours represent the data points (multiples of uniform density). The maximum and minimum density values are shown. The pfJ index was proposed by Michibayashi and Mainprice (2004) to evaluate the fabric strength. The number of measured points is denoted by N

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