Oxygen isotope concentrations of minerals from the upper kilometer of the ocean crust, DSDP Hole 504B, supplement to: Alt, Jeffrey C; Muehlenbachs, Karlis; Honnorez, Jose J (1986): An oxygen isotopic profile through the upper kilometer of the oceanic crust, DSDP Hole 504B. Earth and Planetary Science Letters, 80(3-4), 217-229

Jeffrey C Alt, Karlis Muehlenbachs & Jose J Honnorez
DSDP Hole 504B is the deepest basement hole in the oceanic crust, penetrating through a 571.5 m pillow section, a 209 m lithologic transition zone, and 295 m into a sheeted dike complex. An oxygen isotopic profile through the upper crust at Site 504 is similar to that in many ophiolite complexes, where the extrusive section is enriched in 18O relative to unaltered basalts, and the dike section is variably depleted and enriched. Basalts in...
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