Postglacial Tectonic and Sea Level History of the Central Canadian Arctic
Auteur : Arthur S. Dyke, Thomas F. Morris, David E. C. Green
Date de publication : 1991
Éditeur : Energy, Mines, and Resources Canada
Nombre de pages : 56
Résumé du livre
More than 130 new radiocarbon dates on driftwood, whale bone, marine shells, and organic detritus from Prince of Wales and adjacent smaller islands form the basis for 14 local emergence curves representing small sample areas. Fourteen other emergence curves are presented from sites and areas of various size throughout the central Arctic region, from Melville and Devon Islands in the north to Pelly Bay and Bathurst Inlet in the south. Four of the better controlled curves are from Somerset Island, adjacent to Prince of Wales Island. These 28 emergence curves, along with other radiocarbon dates on isolated samples scattered throughout the region, are used to construct a set of isobase maps showing the elevation of the crust that has occurred since 11 ka, 10 ka, 9.3 ka, 9 ka, 8.5 ka, 8 ka, 7 ka, and 6 ka.