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L8-page9 - 2 Needs shorter potential cables Schlumberger 1...

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9 Geometrical Factors Array advantages and disadvantages 1. Requires large current 2. Requires sensitive instruments 1. Cables can be shorter for deep soundings Dipole-Dipole 1. Can be confusing in the field 2. Requires more sensitive equipment 3. Long Current cables 1. Fewer electrodes to move each sounding
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Unformatted text preview: 2. Needs shorter potential cables Schlumberger 1. All electrodes moved each sounding 2. Sensitive to local shallow variations 3. Long cables for large depths 1. Easy to calculate ρ a in the field 2. Less demand on instrument sensivity Wenner Disadvantages Advantages Array...
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