L06-page17 - • Process by which effects of inclination...

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17 Derivatives • Emphasizing shorter wavelength features. • First vertical derivative emphasizes near surface features. It can be measured with gradiometer, or derived from corrected data • Second vertical derivative emphasizes boundaries of target zones. Reduction to Pole
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Unformatted text preview: • Process by which effects of inclination and declination are removed from the data. • The data are mathematically transformed to measurements over the same geologic structure, but at the magnetic pole where the inducing field is vertical....
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