Figure F111. Downhole distribution of zircon and apatite, as observed in thin section (diamonds) and estimated from P and Zr concentrations in whole-rock analyses (squares). These accessory minerals are mainly associated with oxide gabbro, crosscutting oxide-bearing dikelets and shear zones, and rare trondhjemites. The apatite-barren interval between 1020 and 1190 mbsf coincides with the longest oxide-free interval of the core.
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