Figure F17. Sutured boundary (red dashed lines) between gabbro and olivine gabbro intervals in the Oikocryst-Bearing Layered Gabbro Series, Hole U1415J. The boundary is defined by differences in grain size and modal mineralogy (Sample U1415J-8R-3, 31–41 cm [Piece 7]). A. Close-up core image. B, C. Thin Section 54; 35–38 cm (Piece 7) under (B) plane-polarized and (C) crossed polars.
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