Figure F18. Lithostratigraphy results at J-Anomaly and Southeast Newfoundland Ridges plotted against the 2012 geologic timescale (Gradstein et al., 2012). Major hiatuses are recognized around 50 Ma at J-Anomaly Ridge and between 33 and 40 Ma at Southeast Newfoundland Ridge. High sedimentation rates of drift sediment (green shading) were recorded around the early–middle Eocene (44–50 Ma) and late Oligocene to early Miocene (22–26 Ma). Sedimentation rates are illustrative only; for datum-to-datum rates, see age-depth plots and tables in the site chapters. MMCO = Middle Miocene Climatic Optimum, OMT = Oligocene–Miocene transition, EOT = Eocene–Oligocene transition, MECO = Middle Eocene Climatic Optimum, ETM2 = Eocene Thermal Maximum 2, PETM = Paleocene/Eocene Thermal Maximum, K/Pg = Cretaceous/Paleogene boundary, OAE = Oceanic Anoxic Event, MCE = middle Cenomanian event.
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