Multimedia Gallery
October 14, 2009
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The submersible Alvin that was used to collect sediment from methane seeps.
The submersible Alvin that Emily Beale and her colleagues used to collect sediment from methane seeps in the Eel River Basin in California.
Credit: Emily Beal, Penn State University
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
Additional information about general usage can be found in Conditions.
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