RT @USGSVolcanoes: New guidebook: Columbia R. Flood Basalts https://t.co/yKsWZ7rI4S #volcanoes #geology #IAVCEI2017 https://t.co/9WBPIuVs1Z
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RT @OregonGeology: #IAVCEI2017 field trip Day 1! Columbia River Basalt Group “great flows” in Mosier. This & more @IAVCEI2017 guides: https…
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#IAVCEI2017 field trip Day 1! Columbia River Basalt Group “great flows” in Mosier. This & more @IAVCEI2017 guides: https://t.co/wNdngqYXzo https://t.co/SJ4qnCFukh
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RT @USGSVolcanoes: New guidebook: Columbia R. Flood Basalts https://t.co/yKsWZ7rI4S #volcanoes #geology #IAVCEI2017 https://t.co/9WBPIuVs1Z