This ventifact, or wind-carved rock, from the Dry Valleys of Antarctica demonstrates how rocks can be shaped and eroded into sculpture-like forms by erosion and weathering. The primary erosion comes from wind abrasion. Chemical weathering, expansion due to heating, and contraction due to cooling also contribute.
Provided by U.S. Antarctic Program, Office of Polar Programs, National Science Foundation
Topic: Earth Science
Subtopic: Earth Structure
Keywords: Ventifact, Antarctica, Erosion, Geology, Weathering