Fig. 1. Gravity observation stations on the topography.
Fig. 3. Complete Bouguer anomaly.
Fig. 4. Regional and residual anomaly maps from all data by polynomial fitting method: regional anomaly by (a) the first and (b) second orders, and residual anomaly by (c) the first and (d) second orders.
Fig. 5. Density estimation by Parasnis method using (a) all the data, (b) the data within the northern part, and (c) those within the southern part of the study area.
Fig. 6. Regional and residual anomaly maps from splitting data as northern and southern areas by polynomial fitting method: regional anomalies by (a) the first and (b) second orders, and residual anomalies by (c) the first and (d) second orders.
Fig. 7. Comparing ranges of residual anomalies according to polynomial orders and applied areas.
Fig. 2. (a) Free-air anomaly and (b) simple Bouguer anomaly.
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