Roger Hooke

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The Katahdin Esker part of Vignettes:Vignette Collection
Introduction Many landforms left by continental ice sheets owe their origin to thermal conditions at the glacier bed. Among these are thrust features1 (Moran and others, 1980); periglacial landforms dating from ...

Human Impacts on the Landscape part of Vignettes:Vignette Collection
Humans move tremendous amounts of earth every year. They are arguably the premier geomorphic agent sculpting the surface of Earth today. In the early 1990s, people in the United States were moving about 0.8 Gt (Gt ...