News From the Field
By river, ocean or wind, rocks round the same way
March 28, 2018
This material is available primarily for archival purposes. Telephone numbers or other contact information may be out of date; please see current contact information at media contacts.River rocks tend to be rounded, as do grains of dune sand and beach glass. Geophysicist Douglas Jerolmack of the University of Pennsylvania led a team in showing that all of these types of particles acquire a curved shape in a similar manner. The finding may help scientists understand how floodplains are built and predict when ash or dust clouds are likely to form.Full Story
University of Pennsylvania
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