The Earth's Electrical Environment (1986) / Chapter Skim
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Pages 241-242
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From page 241... ...
Shallow currents have also been reported in several sedimentary basins, such as in the Seine Basin and in the northern German anomaly (see Appendix; for other references see, e.g., Gregori and Lanzerotti, 1982~. Shallow telluric currents are responsible for a component of the coast effect or magnetic signals, where the geometrical orientation of the magnetic variations at higher frequencies are correlated with the shape of the coast.
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From page 242... ...
, for geomagnetic variations with period of 60 min. Contours indicate the sea depth in 103 m.
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