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Igneous petrologists (left to right) Andy Adamson of the UK; Christine Laverne from France; Head and Co-Chief Scientist Rolf Emmerman of Germany; Pamela D. Kempton from the United States; and Jeffrey C. Alt also from the United States all on board the D/V Glomar Challenger (ship), during one of the legs of the Deep Sea Drilling Project. 1981.

Igneous petrologists (left to right) Andy Adamson of the UK; Christine Laverne from France; Head and Co-Chief Scientist Ro...