title: Enhanced Atmospheric Circulation over North America During the Early Holocene: Evidence from Lake Superior.
abstract: Profiles of grain sizes in five cores recovered from Lake Superior show that grain size increased with burial depth to the postglacial-glacial contact. The results reflect a substantial reduction in bottom-current velocity and the corresponding wind velocity from 9500 to 6500 years ago.
authors.forename: J D
authors.initials: JD
authors.lastname: Halfman
authors.forename: T C
authors.initials: TC
authors.lastname: Johnson