File:Black smoker.gif
Black_smoker.gif (350 × 309 pixels, file size: 36 KB, MIME type: image/gif)
Source: USGS (public domain) http://pubs.usgs.gov/publications/text/exploring.html
View of the first high-temperature vent (380 °C) ever seen by scientists during a dive of the deep-sea submersible Alvin on the East Pacific Rise (latitude 21° north) in 1979. Such geothermal vents--called smokers because they resemble chimneys--spew dark, mineral-rich, fluids heated by contact with the newly formed, still-hot oceanic crust. This photograph shows a black smoker, but smokers can also be white, grey, or clear depending on the material being ejected. (Photograph by Dudley Foster from RISE expedition, courtesy of William R. Normark, USGS.)
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:04, 25 November 2005 | | 350 × 309 (36 KB) | Ashcraft (talk | contribs) | Source: USGS (public domain) http://pubs.usgs.gov/publications/text/exploring.html View of the first high-temperature vent (380 °C) ever seen by scientists during a dive of the deep-sea submersible Alvin on the East Pacific Rise (latitude 21° north) in |
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