This dataset consists of nine data tables and is part of the DFG SPP 527 Infrastructure area - International Ocean Drilling Programme³ (IODP³) project Exp392EventStratigraphy: high resolution bulk stable carbon isotope stratigraphy of major Paleogene events drilled during IODP Expedition 392 on Agulhas Plateau. The reported data enable a clear identification and geochemical characterization of the recovered Paleocene Eocene Thermal Maximum (PETM) record, set a new global standard for correlation.This data table provides the assembled composite record of the IODP Site U1580 XRF core scanning data collected every 1 to 2 cm down-core over a 1.2 cm2 area with down-core slit size of 10 mm.