Red line shows the deeptow magnetic profile lines collected in 1992. Again the seafloor depth is shown based on satellite altimetry as in the above figure. The observed deep-tow magnetic anomalies are corrected for depth variations of the tow fish and continued upward to the sea surface. Correlations between the profiles are shown with the red lines with anomaly identifications out to M41. See notes on geomagnetic polarity timescale for age in millions of years.
Top panel shows forward models of sea surface anomaly and near-bottom anomaly.
These data have not been deskewed. Reversal rate is calculated at 1 m.y. intervals with a 2 m.y. window and is based on a figure from Sager et al. Woods Hole Oceanographic Institution. All Rights Reserved.