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Had such a great time on this domes and flows trip in August! #obsidian #volcano #dragonglass https://t.co/OMA0n65QU4
Had such a great time on this domes and flows trip in August! #obsidian #volcano #dragonglass https://t.co/OMA0n65QU4
RT @jonathanfink: Everything you've always wanted to know about dike-fed silicic domes and flows! USGS Pub https://t.co/h0C75dOucI via @USG…
RT @jonathanfink: Everything you've always wanted to know about dike-fed silicic domes and flows! USGS Pub https://t.co/h0C75dOucI via @USG…
RT @jonathanfink: Everything you've always wanted to know about dike-fed silicic domes and flows! USGS Pub https://t.co/h0C75dOucI via @USG…