Titlebook: Crust/Mantle Recycling at Convergence Zones; Stanley R. Hart,Levent Gülen Book 1989 Kluwer Academic Publishers 1989 atmosphere.chemistry.g

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1389-2185 ce Zones," held in Antalya, Turkey, between May 25 to 29, 1987. The workshop was attended by 36 earth scientists from ten countries and 28 papers were presented. Crust/mantle recycling is one of the most fundamental processes in the Earth. The study and understanding of this process requires the con

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at high levels in the mantle, cannot generate, nor be in equilibrium with, mid-ocean ridge or ocean island basalts, and have a complex geochemical history involving partial melting, melt extraction and metasomatism.

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Book 1989 held in Antalya, Turkey, between May 25 to 29, 1987. The workshop was attended by 36 earth scientists from ten countries and 28 papers were presented. Crust/mantle recycling is one of the most fundamental processes in the Earth. The study and understanding of this process requires the consideration

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Sediment Recycling at Convergent Margins: Constraints from the Cosmogenic Isotope 10Be,ts contained within grabens are presumed to be subducted, then the global sediment subduction rate is 2–5 × 10. km./Ma; model calculations suggest that 11–14% of the subducted sediment is recycled in volcanic arcs and that the remainder is available for subduction deep into the earth.

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Volatiles and Stable Isotopes in Recycling,heir fluxes if they are not too much affected by the processes of dissolution and outgassing. We shall review in the next pages, first some of the isotope aspects, then some chemical characteristics of the fluids involved in outgassing of the mantle, and of those possibly recycled.