File:Petrology Igneous.svg
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![File:Petrology Igneous.svg](https://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Petrology_Igneous.svg/411px-Petrology_Igneous.svg.png)
Size of this PNG preview of this SVG file: 411 × 307 pixels. Other resolutions: 320 × 239 pixels | 640 × 478 pixels | 1,024 × 765 pixels | 1,280 × 956 pixels | 2,560 × 1,912 pixels.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:24, 30 September 2017 | ![]() | 411 × 307 (10 KB) | commons>Mikhail Ryazanov | {{Information |Description={{en|1=Total alkali (N<sub>2</sub>O + K<sub>2</sub>O) versus silica (SiO<sub>2</sub>), or TAS, classification system of igneous rocks. After Le Maitre (2002).}} |Source=[http://pubs.usgs.gov/sir/2010/5070/c/ W. C. Pat Shanks... |
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