Figure F3. (A) Primitive mantle-normalized trace element concentration diagrams and (B) C1 chondrite-normalized REE abundance patterns for basement rocks from Site U1381 (Holes U1381A and U1381C). Data for primitive mantle and C1 chondrite are from Sun and McDonough (1989). Data for normal mid-ocean-ridge basalt (N-MORB), enriched mid-ocean-ridge basalt (E-MORB), and ocean island basalt (OIB) are from Niu and O’Hara (2003).
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