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12. SLIDE #12 (194K): A'a and pahoehoe flows, Hawaii
13. SLIDE #13 (174K): Lava tree mold, Hawaii
14. SLIDE #14 (146K): Trachytic lava flow field, El Teide, Tenerife
15. SLIDE #15 (165K): Advancing aa flow, Mt. Etna
16. SLIDE #16 (120K): Chao lava coulée, north Chile
17. SLIDE #17 (151K): Showa Sin-Zan plug dome, Japan
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