An erosive neritic area of Shantou in coastal NE South China Sea since at least MIS 5 revealed by OSL dating of cores

The neritic region of the Chaoshan plain is located on northeastern (NE) boundary South China Sea (SCS). Despite extensive research stratigraphic architecture and sedimentary processes within plain, neighboring area remains largely unexplored. In this study, we provide a new set ages seventeen quartz optically stimulated luminescence (OSL) dating results from four cores (SY2-2, SY3-1, SY3-2, HS02) to investigate regional chronostratigraphy sedimentology area. samples were collected at depths ranging 0.6 73.5 m yielded 4.9 ± 0.3 ka >139 28 ka. Sedimentation thickness SY2-2, HS02 less than 4.2 m, 5.5 6.4 respectively, since least Marine Isotope Stage (MIS) 5, Holocene sediments core SY3-2 are thick. preservation state in poor 83.6 ka, indicating an intensified erosion (NESCS) MIS 5. This may have been caused by fluvial incision resulting sea-level decline during last glacial period, as well strong transportation coastal currents.