Earth Features and Their Meaning An Introduction to Geology for the Student and the General Reader
CHAPTER XXI
THE CONTINENTAL GLACIERS OF POLAR REGIONS
The inland ice of Greenland—The mountain rampart and its portals—The marginal rock islands—Rock fragments which travel with the ice—The grinding mill beneath the ice—The lifting of the grinding tools and their incorporation within the ice—Melting upon the glacier margins in Greenland—The marginal moraines—The outwash plain or apron—The continental glacier of Antarctica—Nourishment of continental glaciers—The glacier broom—Field and pack ice—The drift of the pack—The Antarctic shelf ice—Icebergs and snowbergs and the manner of their birth—Reading references 271