Seafloor Geomagnetic Sounding near the 85゜E Ridge in the Bay of Bengal
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Seafloor geomagnetic field variations in three components were recorded in the Bay of Bengal near the 85°E ridge, to investigate whether the negative gravity anomaly over the ridge is due to thick sedimentary deposit or due to a thick crust. Comparison of the X-, Y-and Z-variations in the vicinity of the 85°E ridge and near the continental margin suggests that a resistive thick crust underlies the 85°E ridge. The validity of conclusions arrived at from a simple inspection of magnetograms is supported by numerical calculations using a thin sheet approximation.
- Earth, Planets and Space
Earth, Planets and Space 47(4), 421-430, 1995-04
Society of Geomagnetism and Earth, Planetary and Space Sciences