Dunes in Arizona

GeoWord of the Day: channel geometry

channel geometry . The description of the shape (form) of a given cross section within a limited reach of a river channel. See also: river morphology.

Earth Science Week 2014 Poster

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Earth Science Week 2014 celebrates the theme "Earth's Connected Systems," emphasizing interactions among the Earth systems of land, water, air, and life.

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Earth Science Week 2014 Poster
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