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Original file (3,872 × 2,592 pixels, file size: 4.36 MB, MIME type: image/jpeg)
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Summary
| Description |
English: "Fine-grained silica sand is mixed with chemicals and water before being pumped into rock formations to prevent the newly created artificial fractures from closing after hydraulic fracturing is completed. Location: AR, USA; Date Taken: 2012; Photographer: Bill Cunningham, USGS". See Hydraulic fracturing |
| Date | |
| Source | http://gallery.usgs.gov/photos/03_08_2013_v0Qd72Gts4_03_08_2013_2 |
| Author | Bill Cunningham, USGS, public domain |
Licensing
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This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:59, 21 November 2013 | | 3,872 × 2,592 (4.36 MB) | A5b | User created page with UploadWizard |
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