40Ar-39Ar ages of ice-rafted sand-sized hornblende and mica deposited in Iceberg Alley (NERC Grant NE/T006609/1)

40Ar/39Ar ages of 37 mica and 21 hornblende from the sand-sized fraction of an iceberg-rafted debris-rich layer deposited in the Scotia Sea at IODP Site U1538 ~1.2 million years ago during the early Pleistocene.