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Figure F16. Altered over least altered major and trace element concentrations in brown basalt chips at the sediment/basement interface (red; Sample 329-U1367F-4R-1, 21–31 cm) and a chilled margin with very slight brown alteration (black; Sample 329-U1367F-4R-1, 51–53 cm). LOI = loss on ignition. Error bars are propagated from the sum of the squares of analytical precision (based on multiple runs of Sample 329-U1367F-2R-3, 60–63 cm) (see “Lithostratigraphy, igneous petrology, alteration, and structural geology” in the “Methods” chapter [Expedition 329 Scientists, 2011a]).

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