Late glacial ice margins and deglacial chronology for southeastern Baffin Island and Hudson Strait, eastern Canadian Arctic: Discussion

Abstract

The authors, J.A. Stravers, G.H. Miller, and D.S. Kaufman, have provided an important synthesis of ongoing research bordering outer Hudson Strait. Their reconstruction proposes that on two occasions during the early Holocene, Labrador Sector crossed Hudson Strait to override parts of southeast Baffin Island. Their conclusion proposes that by 9900 BP, the activity of Foxe Basin and the local caps had become subordinate to that of Labrador-Ungava ice (p. 1015). So, too, had the Hudson Strait stream farther to the west. If correct, this reconstruction has considerable paleoclimatic and glaciological implications for the northeast Laurentide Ice Sheet. Given its importance, this hypothesis warrants further scrutiny, especially the consideration of several alternative interpretations that arise from the data.