Now, a detailed look at the magnetic signatures from the lab of paleomagnetist John Tarduno of the University of Rochester in New York confirms the suspicion that the hot spot
drifted southward 3 to 5 centimeters per year — faster than many crustal plates move.
The amount of detrital petrological tracers transported by icebergs and deposited in the ice - rafted debris belt (an Atlantic region between 40 - 50 ° N) greatly increases during episodes of
southward and eastward advection of cold surface waters and
drift ice from the Nordic and Labrador seas (Bond et al., 2001; figure 48 A).