eolian sand
Quick Summary
Eolian sand refers to sand that has been moved and deposited by wind. These wind-blown sands form geological features known as sand dunes, which are accumulations of sand shaped into mounds or ridges by wind and gravity.12
Eolian activity is significant in the geological record, particularly during the Pleistocene Epoch, indicating widespread wind action. Deserts, beaches, and even some eroded farmlands can be sites of dune formation. The sand itself is typically composed of quartz, which resists chemical breakdown. The wind's velocity, direction, and turbulence are key factors in shaping dunes. Sand dunes are found on Earth and have also been observed on Mars.13
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
