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  1. No Access

    Chapter

    Sediment Recycling at Convergent Margins: Constraints from the Cosmogenic Isotope 10Be

    The question of whether sediments are subducted at convergent margins and subsequently incorporated in arc magmas has long been controversial. The cosmogenic isotope 10Be (T1/2 = 1.5 million years) suggests that ...

    Julie Morris, Fouad Tera, I. Selwyn Sacks… in Crust/Mantle Recycling at Convergence Zones (1989)

  2. No Access

    Chapter

    A Review of Negative Heavy-Ion Sources

    There can be little doubt that the major impetus for negative ion source development, particularly for ions with Z > 1, has been the tandem accelerator. Progress since 1960, when the number of available negative ...

    Roy Middleton in Treatise on Heavy-Ion Science (1985)

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    Article

    10Be in island-arc volcanoes and implications for subduction

    We have measured the concentration of the cosmogenic isotope 10Be in the lava of 19 separate flows, 15 of which are from island-arc volcanoes. We report here that 13 of the island-arc samples show concentrations ...

    Louis Brown, Jeffrey Klein, Roy Middleton, I. Selwyn Sacks, Fouad Tera in Nature (1982)