ODP Leg 172: Western North Atlantic Sediment Drifts 

Comparison of: natural gamma with resistivity logs; resistivity at 1061A to that at 1063A; and the logs to the Specmap oxygen isotope (global ice volume) record. The logs clearly give the glacial-interglacial sequence, and the mid-Pleistocene transition from the '40 kyr world' to the '100 kyr world' is well defined. The Hole 1061A log has been transformed to the 1063A depth scale.