File:Brown Bluff-2016-Tabarin Peninsula–Volcanic tephra.jpg
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Size of this preview: 738 × 599 pixels. Other resolutions: 296 × 240 pixels | 591 × 480 pixels | 946 × 768 pixels | 1,261 × 1,024 pixels | 2,522 × 2,048 pixels | 3,848 × 3,125 pixels.
Original file (3,848 × 3,125 pixels, file size: 12.99 MB, MIME type: image/jpeg)
Summary
| Description |
English: Block of tephra, at Brown Bluff, Tabarin Peninsula, Antarctic Peninsula. To give an idea of scale, the height at the center of the object is at least 6 ft (1.8 m). Per Skilling, I. P. (1994). Evolution of an englacial volcano: Brown Bluff, Antarctica. (not publicly available on line, and I was only able to read the first two pages), it appears to be "alkali basaltic" in composition (at least the Brown Bluff tephra in general appears to be), I think this is referring to the darker solid chunks contained in the lighter matrix material. |
| Date | |
| Source | Own work |
| Author | Godot13 |
| Attribution (required by the license) | Andrew Shiva / Wikipedia / |
| Object location |  | View this and other nearby images on: OpenStreetMap |  |
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Licensing
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The copyright holder of this file, Andrew Shiva, allows anyone to use it for any purpose, provided that the copyright holder is properly attributed. Redistribution, derivative work, commercial use, and all other use is permitted. |
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Use or reproduction of this image outside of Wikipedia must give the original photographer (Andrew Shiva) credit. Although not required, it would be appreciated if a message was left here indicating where this image was being used.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:57, 3 April 2016 | | 3,848 × 3,125 (12.99 MB) | wikimediacommons>Godot13 | CA & crop |
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