Columbia Collegetolhurstj.faculty.gocolumbia.edu/.../JGE_Subduction_Article_1998.pdf · Mantle...
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Columbia Collegetolhurstj.faculty.gocolumbia.edu/.../JGE_Subduction_Article_1998.pdf · Mantle Asthenosphere Convergence rate 7 cm/year surrounding mantle, and melted into new materials