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20160623-usgs-lavaflow-s-02

An HVO geologist collects a fresh lava sample for chemical analysis. The lobe being sampled was typical of the many scattered pāhoehoe breakouts along the flow margin today. Photo taken Thursday, June 23, 2016 courtesy of USGS/HVO

An HVO geologist collects a fresh lava sample for chemical analysis. The lobe being sampled was typical of the many scattered pāhoehoe breakouts along the flow margin today. Photo taken Thursday, June 23, 2016 courtesy of USGS/HVO

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