Figure F29. Downhole profiles of carbonate, total organic carbon (TOC), and total nitrogen (TN) from J-Anomaly Ridge Sites U1403–U1406. A common feature is that organic matter peaked in early Miocene sediments (green shading). E/O = Eocene/Oligocene boundary, PETM = Paleocene/Eocene Thermal Maximum, K/Pg = Cretaceous/Paleocene boundary.
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