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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

From: A procedure for stable electrical measurements on a rock sample against high contact resistance as a prerequisite for electrical tomography

Fig. 2

Photographs of set-up for measurement of a granite sample. a The unpolished, cylindrical rock sample (52 mm diameter, 100 mm length) overlaid with the dimensions r, θ, and z defining its coordinate axis. b The electrode attachment area as controlled by insulating masking tape. c Conductive epoxy adhesive attached to the rock surface as a high-conductivity electrode

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