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sci.gravity-anomaly-Bouguer Calculator
Calculates Bouguer gravity anomaly from measured gravity, free-air correction, and Bouguer slab correction using standard density 2,670 kg/m³. Δg_Bouguer = g_measured + δg_FA − 0.1119h + terrain correction — used in mineral exploration to map density contrasts in the crust.
Inputs
G Obs Mgal
Reference formula or conversion factor shown for context.
Latitude Deg
Reference formula or conversion factor shown for context.
Elevation M
Reference formula or conversion factor shown for context.
Rho Crust Kg M3
Mass per unit volume (kg/m³). Water: 1,000. Air: 1.225. Steel: 7,850. Affects buoyancy, flow, and structural loads.
Results
Bouguer anomaly (mGal)
Sample size or count used in the calculation.
normal gravity gn (mGal)
Sample size or count used in the calculation.
free-air correction FA (mGal)
Sample size or count used in the calculation.
Bouguer plate correction BA (mGal)
The value at the specified point or condition.
g_B = g_obs − g_n + FA − Bouguer
Sample size or count used in the calculation.
anomaly interpretation
Qualitative summary of what the computed numbers mean in practical terms.