Figure F5. (La)_cn vs. (La/Yb)_cn variation diagram. Site 1067 amphibolite, Site 1068 amphibolite, Site 1068 microamphibolite, and Site 1068 metagabbro compositions are shown as open symbols. Fields represent data for the Leg 149 metagabbros, Gorringe Bank gabbros and dolerites (west Iberia margin), Leg 153 gabbros (Mid-Atlantic Ridge), Hayes Fracture Zone gabbros (Mid-Atlantic Ridge), and Bay of Islands (BOIC) ophiolitic gabbros and diabases (Newfoundland, Canada). The Leg 173 samples are most similar to the Leg 149 basalts and diabases and Bay of Islands ophiolitic samples. Data are from Casey (1997); Cornen et al. (1999); Cornen et al. (1996); Seifert and Brunotte (1996); Seifert et al. (1996); Smith (1994); and J.F. Casey (unpubl. data).