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Lee Siebert

Lee Siebert and Paul Kimberly are volcanologists affiliated Lee Siebert and Paul Kimberly are volcanologists affiliated Lee Siebert and Paul Kimberly are volcanologists affiliated Lee Siebert and Paul Kimberly are volcanologists affiliated with the Smithsonian 's Global Volcanism Program; Siebert iswith the Smithsonian 's Global Volcanism Program; Siebert iswith the Smithsonian 's Global Volcanism Program; Siebert iswith the Smithsonian 's Global Volcanism Program; Siebert is the GVP 's...See more