Geomagnetic polarity transition records from five hydraulic piston core sites in the North Atlantic.

Abstract

Eleven geomagnetic polarity transition records from five hydraulic piston core sites in the North Atlantic are presented. The Matuyama-Brunhes reversal was sampled at five sites and the upper and lower Jaramillo and upper Olduvai transitions were each sampled at two sites. The wet sediment was sampled by taking U-channel samples across the reversals, as defined by conventional shipboard magnetostratigraphic studies. The U-channel samples were subsampled on shore by taking successive 0.5-cm-thick slices of the sediment.-from Authors