The late Holocene and interglacial assemblages were dominated by Alnus, whereas the early Holocene and Wisconsinan ones were dominated by Betula and Artemisia. During the Holocene and probably the last interglaciation, most of the pollen and spores
were blown a minimum of 1000 km from low arctic shrub tundra and adjacent subarctic Picea (spruce) forest| these areas were dominated by the arctic air mass during the summer pollinating season. During the Wisconsinan-early Holocene, glacier ice
Late Wisconsinan age glacial Landforms and deposits indicate that an ice shelf of at least 60,000 km flowed northwestward into Viscount Melville Sound, probably from the M'Clintock Dome of the Laurentide Ice Sheet. The ice shelf overlapped coastal