File:Dacite-ThinSection-USGS.jpg
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Dacite-ThinSection-USGS.jpg (600 × 480 pixels, file size: 102 KB, MIME type: image/jpeg)
Summary
Thin section image in crossed polars of a <a href="https://en.wikipedia.org/wiki/Dacite" class="extiw" title="en:Dacite">Dacite</a> sample from a dome in <a href="https://en.wikipedia.org/wiki/Mount_St._Helens" class="extiw" title="en:Mount St. Helens">Mount St. Helens</a>. Image by United States Geological Survey, a federal scientific agency.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:55, 6 January 2017 | | 600 × 480 (102 KB) | 127.0.0.1 (talk) | Thin section image in crossed polars of a <a href="https://en.wikipedia.org/wiki/Dacite" class="extiw" title="en:Dacite">Dacite</a> sample from a dome in <a href="https://en.wikipedia.org/wiki/Mount_St._Helens" class="extiw" title="en:Mount St. Helens">Mount St. Helens</a>. Image by United States Geological Survey, a federal scientific agency. |
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