| Popis: |
Publisher Summary This chapter discusses Hudson Bay's glacial history and describes the nature of its early post-Wisconsin history. The chapter is based largely on data from terrains flanking Hudson Bay on the west and south, where recent mapping of isostatically uplifted terrain has yielded much sedimentological information that is pertinent to the understanding of its modern sedimentary environments. Hudson Bay flowed from gathering grounds in Keewatin and Nouveau Quebec-Labrador and impinged on each other in the region presently covered by marine waters. Hudson Bay itself is not the centre of glacier outflow, with the possible exception of its southwest corner, which is thought by some to have been covered by an independent centre of outflow. Many of the modern characteristics of the Hudson Bay basin are derived from the processes that accompanied the last ice retreat and accompanying marine inundation of its isostatically depressed surface. |
