9) The resistivity curve shown in Figure 1 was measured using a Wenner electrode configuration. a) What information abou

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9 The Resistivity Curve Shown In Figure 1 Was Measured Using A Wenner Electrode Configuration A What Information Abou 1 (49.95 KiB) Viewed 14 times

9) The resistivity curve shown in Figure 1 was measured using a Wenner electrode configuration. a) What information about the subsurface can one extract from this curve? [4] b) How many layers can you identify? Explain! [5] c) Assume a two-layer ground: what are the resistivities of the top layer and the half-space below? [2] MEG 3143/ MEG3543 Test 2 1st Semester 2022 100 0.1 0.2 0.5 12 5 10 20 50 100 Electrode Separation (m) Figure 1: Resistivity curve. d) What are the factors that determine the maximum separation of the two current electrodes? [4] e) Describe three short comings or limitations of resistivity survey in geophysics exploration and explain how it affects exploration. [5] Apparent Resistivity (Ohm-m) 50 20 10 5