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Figure 9 | Geothermal Energy

Figure 9

From: Physical property relationships of the Rotokawa Andesite, a significant geothermal reservoir rock in the Taupo Volcanic Zone, New Zealand

Figure 9

Spatial attenuation ( α s ) of axial compressional P-wave velocity of Rotokawa Andesite. Attenuation was calculated by the method suggested by Martínez-Martínez et al. ([2011]) utilizing transmission of the ultrasonic wave and maximum attenuation of the waveform plotted versus axial compressional wave velocity (Vp) obtained under an axial stress of 10 MPa.

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