Dictionary:Fig M-3

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FIG. M-3.

Magnetic resolution required for different targets. (Courtesy Goussev and Peirce, 1999)

Target Amplitude Wavelength Grid
Regional structure, basement 1.0–5.0 nT 20 km 5–8 km
Basement structure, faults, lineations, volcanics, salt 0.5–2.0 2–5 km 1–2 km
Detail faulting, structures, edges, 2D and 3D modeling 0.1–0.5 0.1–1.0 km 050–250 m
Ore bodies, kimberlite pipes 0.005–0.1 50–200 m 25–50 m