Figure F9. Correlation of bryozoan oxygen isotopic profiles from Holes 1129C, 1131A, and 1132B with the Quaternary oxygen isotopic record (Berger et al., 1994). Marine isotope stages are given in each profile. Shaded bars indicate the boundstone horizons. mwd = mean water depth. VPDB = Vienna Peedee belemnite international standard. ? = possible correlation with isotopic stage.