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Figure F232. Zr/Y versus Zr (ppm) for basalts and diabases from Site U1309 (Expedition 304). Lines join same basaltic unit samples in order of depth at Site U1309 (see “Igneous petrology”). 1 = three samples from Hole U1309B Diabase D-1 (Units 20 and 22), 5 = five samples from Hole U1309D Diabase D-5 (Units 42 and 44). Plag = plagioclase, Cpx = clinopyroxene. MAR = Mid-Atlantic Ridge.

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