Un kame sur la batture aux Alouettes, près de l'embouchure du Saguenay, Québec

Although most islands in the St. Lawrence estuary are rocky, the islet called Ile du Chafaud aux Basques, located at the southern end of the large tidal flat aux Alouettes, at the mouth of the Saguenay fjord, is composed entirely of unconsolidated stratified sand and gravel with bouldery diamict layers. This islet is a true kame occurring at low tide level on a silty-clayey flat that extends from the foot of the Laurentides Shield escarpment. Rock debris are essentially from the inland Precambrian substrate. Late glacial flow directions in Chafaud aux Basques cove are 95°-105°. Slightly modified by wave action during the Goldthwait Sea episode, this relict kame most likely indicates the ice front position during the St.Narcisse event dated at 11-10.6 ka in the area.