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Graphics Interchange Format  |  1998-11-13  |  8.7 KB  |  521x444  |  4-bit (3 colors)
   ocr: VOLCANIC ROCK CLASSIFICATION - Phonolite 12- 12 - Tephri- Trach yte ALKALINE L phonditeA - 9- 2 L Foidite Phono-. + 61 tephrite Trachy- andesite, idacite Trachy- - a N 31 BUBALK ALINE - Basalic - Tephrite- a Xtrachy V basanite landesite - 30 45 8 80 75 80 /basalt - - - SiO2 (weight %) - Trachy - - - - - Dacite Rhyolite Basalt Andesite Basaltic . andesite 1 basalt Picro-Shergottyl Zagami - EETA79001AL EETA700018 I - - > KA3 I 1 - 35 45 55 65 75 85 SiO2 (weight %)