Abstract
A study of geomagnetic field time variations with a magnetometric array was performed in Sardinia during the summer of 1988. Nine fluxgate magnetometers with digital acquisition systems were employed to cover the main structural features of the island. The recordings do not show significant variations in the amplitudes of the horizontal components of the bay-like events, whereas the vertical component amplitudes show a strong southward increase. Fourier maps were drawn at significant periods, and induction arrows and ΔZ ΔH pseudosections were derived.
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