Discussion
In Bouguer gravity anomaly map, which of the following statements are/is correct. Select appropriate answer :
Answer: D
The answer is All of the above are correct.
A Bouguer anomaly map shows the effect of density variations beneath the surface. Broad, long-wavelength anomalies come from deep density contrasts, such as crustal thickness changes or major basins, and reveal regional structure. Short-wavelength anomalies come from shallow sources, such as ore bodies, salt domes or buried channels, and are the targets of exploration.
The residual anomaly, left after the regional trend is removed, has no unique interpretation: many different bodies can produce the same anomaly. Geological knowledge of the area is needed to constrain it. Since each of the three statements is true, choosing any single one is incomplete.
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